BMPCC Hot Pixels

We did another test tonight and kept the camera recording for almost 90 mins without stopping for more then 5 mins to change one card out. After the first 30 mins of recording the camera was really starting to heat up and started to drop frames. We had to stop recording and start over at least 2 times. Once again the image started out pretty clean but again the longer we recorded without stopping the more hot pixels started to appear on the footage. A few times there was even a white dot that was about 3 or 4 times larger then the hot pixels but it only appeared for one frame every once in a while. We are really hoping Blackmagic will come up with a solution very soon for this.

I have written support and gotten a nice, though not enlightening, response back that they are looking into this issue.

My guess is, this might be a problem affecting a significant number of pocket cameras, and if it's hardware related, everyone with the issue will have to send their camera back. Who knows, it might be hundreds of cameras out there experiencing it. That's going to be a load on Black magic no matter what, seeing as they either have to send new copies out (that BM have spent time testing) or fixing the existing cameras that exhibit the issue, also requiring time (and thus, money).

I am pretty sure they are not taking this lightly and/or ignoring it.

If your camera got too hot to shot after 30 minutes, there may be a problem with the cooling, and the overheating may then cause the (literally) hot pixels. I have not seen temperature problems even after my 10 hour battery marathon when i explored how long the camera can record when running from an Anker Astro Pro battery.

I've had this camera for 2 months, but I've only used it about 10 times tbh, and all under 1 hr of use. This week I noticed 1 hot pixel on the LCD. I have read in other forums about the Blackmagic LCD being a cheap type of LCD known to having or to have some quality problems.

Anyhow, I've been reading most of these posts.... I just shot some test footage and I do not find the "hot" pixel on the actual recording. I am recording RAW btw, not that it would matter....I should try ProRes...

Anyhow I even zoomed into the image beyond belief and I did not find the "hot" pixel shown on the LCD. Should I expect hot pixels in the months to come when I plan to use heavily? So far it seems to be fine, and I'm not worrying about 1 hot pixel on the cam LCD tbh.

I wouldn't worry too much about hot pixels at this point in time. If your camera starts to show them-- that is when you can be concerned. But it's a bit like worrying what if my camera starts to scratch the film a few months from now? Will it suck, yes, is it the end of the world? No. It may bite you one day-- but this can be said of ANY camera and with myriad other problems. So it is wise to plan forms of "back up" for the day your primary camera, for any reason, no longer performs adequately for a given shoot. Often this may be a unit from a friend, or a collection of friends you can grab quickly. Other times it may be forming a relationship with a rental house. Or, keeping enough money on hand to get a replacement unit in almost a moments notice-- which isn't too hard a thing to do given the price of the base camera unit. Every camera, no matter how expensive, can have freakish occurrences-- some from design, some from abuse, but most, most from a great summoning of bad luck-- better known as chance occurrence.

If you are managing to run the camera for several hours, then I would assume you are using an external battery. When you feed the camera with an voltage above 7.4 volts, it has to regulate that voltage down to around 8 to 9 volts, so the additional voltage is going to be dissipated in a regulator somewhere in the camera, and that is going to create heat. This may be contributing to heating up the camera more than it is comfortable with.

This afternoon, in 40 degree heat (that's 104 for our American members), I ran my pocket on the internal battery until it went flat, and it only just got a got warmer than the surrounding air.

I then changed the battery for a full one, and attached a 12 volt battery to the input, and after about 45 minutes, it was getting quite hot. I did not see any hot pixels, but I think it proves that an external supply is going to raise the temperature of the camera.

I know BMD suggest an external supply of between 12 and 20 volts, but I would be extremely reluctant to feed it with anything approaching 20 volts. If anything, I would try to get the external supply lower than 12 volts by a fraction.

Geoff

Hmm. Our camera gets pretty hot when it's been recording continuously for a while (15mins or so) and hot pixels are definitely visable. Geoff would you suggest sending the camera back?

The batteries that we use are the ones that Blackmagic makes for the BMPCC. When we did the last test we were not running the camera off a battery we used the AC Adapter instead that came with it. Tonight we conducted our last test with this camera. The temperature inside was 70 degrees. We used only one battery, shot pro res, 800 ASA, and 180 Degree Shutter. We kept the camera recording for 45 minutes without stopping it. When we stopped recording the battery had 2% left and our SanDisk Extreme 64GB 95mbs card was full. Unfortunately the camera still became very hot after about 20 mins and continued to get hotter. We also had the same issue with more hot/stuck pixels appearing on the footage the longer we recorded. By the time we stopped I would say the footage had over 100 hot/stuck pixels scattered in different places on the footage. It looks like white dust that covers the image. At this point we've tried all we can with two different cameras to figure out why this is happening but so far no luck. We really love the image of this camera when it's clean and hope that somebody will come up with a solution. We got lucky with one of them and the reseller took it back but they said we will have to send this one in for repair or replacement to Blackmagic.

HI guys, just got my bmpcc, noticed the same problem with hot pixels, at video mode they are more than the film mode, at 1600 asa they are more than 800 asa, as the camera gets warmer after recording time they appear to be more.

Has anyone seen that type of artifact? What is that? There is no dust on sensor and as you can see, that artifact have sharp sides

yadi.sk/d/n_90DAY1HHtev
yadi.sk/d/5LBtV7geHHtgU

To quote Will Ferrell from ZOOLANDER "I feel like I'm on crazy pills" or at least I think that's what he said. I am so confused by all of us having issues with the pocket cameras. I've read numerous reviews online by respected DPs and other customers and nobody has noticed or mentioned any of these issues. How is it that not one of them mentioned the dead/stuck pixels or how the cameras gets hot after recording continuously for only 30 mins? We've had the same issues with two different cameras now. One was so bad we could not believe it was even sold to begin with. It had to have at least 100 stuck/dead pixels after recording for 1 hour. There has got to be an explanation to why this is happening but so far nobody is talking. Please solve this issue.

Jeremy Jenkins

Totally agree with moviemafia, why we dont have an official announcement?

Just gonna wade in here, I expect this comment will not sit well and by all means my only reason for commenting here is to try to explain and reassure those unsure as to whether this is a fault or normal. This comment will not apply to everyone but I suspect will apply to several on this thread.

Pretty much all cameras have hot/stuck pixels - even when brand new and especially after a few years worth of usage. Why do we not see them on other cameras? Well, how many other cameras have raw and uncompressed video recording capabilities? detail only 1 pixel large will get hidden with even moderate compression and many cameras have a built in NR step before the data is saved - which quickly hides them.

In fact, If you open any raw file in ACR, it will often automatically remove them from view -giving the impression that your average DSLR does not suffer from it. Resolve does not. But you can remove them very easily with a tiny amount of NR.

However - the following things will make any hot pixels stand out way more:
Longer exposure times (higher than 180 degrees)
Low light/underexposure
Viewing ungraded or abnormally lifted footage

None of these are typical scenarios which would apply on your average shoot. As such, instead of creating a situation where you are bound to see hot/stuck pixels and worrying that it is an indication of abnormality (again, every raw capable stills or video camera I have ever had, from brand new - has had stuck/hot pixels if you look for them) - you should instead go and film a properly lit, properly exposed scene, grade it properly and THEN see if you have a problem with Hot/stuck pixels. If you do, I would suggest contacting BMD. But filming at 360degrees with the lens cap at +1 digital gain above the native ISO is going to show you everything, but tell you nothing.

I realise how frustrating and sometimes infuriating it can be when you are certain you have a faulty unit and some person comes along and says "no you are using it wrong" - and by all means, I do not doubt that some people on here might indeed have a genuine fault product. But Every single time I have thus far asked a user to share an example image/dng of the problem, they have never ever been visible in a normal filming situation. What is a normal filming situation? well if its not bright and filling the scopes at 1600 and you are not willing to use NR then you are not filming in a normal situation.

My BMCC has hot/stuck pixels too and I can see them If I film in a certain way. But they are never visible in a proper filming situation - and I have posted tests where I have pushed the footage to iso 12,800!

As for heat - electronics do get hot, my macbook pro gets crazy hot and I have to use a 3rd party fan programme to keep it under 90 degrees C! As long as your camera isn't melting or breaking as a result of a bit of heat - it is not a fault - just a characteristic. You might not like it getting hot, but its a small price to pay for amazing visuals.


I know I will regret posting this, but if at least a few people are reassured that their camera is not actually faulty - and it saves them an expensive and time consuming process of sending it back and forth, then it wont have been pointless.

The best advice I can give you if you feel you're having trouble with hot pixels is to contact your local support either by email or by calling in. They'll be able to give you proper guidance as to what the steps are to get this resolved for you.

Tony

I don't have a local support...
I have send yesterday email to european and american support, but still no one has answered me.
I don't care about pixels that appear at darkness, I think it is ok for this cheap camera, but could be better if pocket was a little bit bigger, because it is an overheating problem.
I got other problem, that are more distracting... because it appear at light.

Maybe you can suggest me an email, where I can directly connect to support?

Tom,

While I am not saying you are wrong, don't you find it odd that only some are experiencing this issue? Or are we to assume that everyone else are also having stuck pixels but are simply shooting in ways in which they don't appear?
Don't you also think it would have been an issue mentioned at one point or another in the numerous reviews and video "tests" out there? Something along the lines of "just be aware that every BMPCC will exhibit hot/stuck pixels, something you have to take into account when purchasing this camera, as it will require NR either in the form of a plugin or the full version of Resolve". If I were a reviewer I think this would be a pretty important thing to point out.
Should it also not be mentioned in the FAQ or manual that this is just a part of the "design" and that one should expect up to X amount of hot/stuck pixels?

And if it is perfectly normal behaviour why would Tony, in an earlier post, write

This is being looked into. When we have more information about this subject, we will let you folks know.

Seems to me a more appropriate response would've been "guys, that's just the way it is, carry on".

I do full time grading and editing and have seen my fair share of material, under-exposed, over-exposed, ungraded LOG, what have you. Yet I have never seen anything so severe (as on my BMPCC at ISO 800) on ANY material I've had come through my hands and on my screen. And you'll have to take my word, but I have seen plenty of awfully shot footage, the kind you say would exhibit the hot pixel issue.
Well not completely true, as I've had material from one C300 with 1 stuck pixel. But that's been it.
Not long ago I shot a spot with 2 BMCCs in a dimly lit environment with no issues whatsoever.
And, if this is also a common issue with the regular BMCC, why haven't anyone commented on that? Besides the black sun-spot problem and the white orbs I haven't heard anyone mention hot pixels on anything but the BMPCC.

And why would BMD be investigating and developing a solution at the highest level if there's no issue?

Go figure..

Tom,

While I am not saying you are wrong, don't you find it odd that only some are experiencing this issue? Or are we to assume that everyone else are also having stuck pixels but are simply shooting in ways in which they don't appear?
Don't you also think it would have been an issue mentioned at one point or another in the numerous reviews and video "tests" out there? Something along the lines of "just be aware that every BMPCC will exhibit hot/stuck pixels, something you have to take into account when purchasing this camera, as it will require NR either in the form of a plugin or the full version of Resolve". If I were a reviewer I think this would be a pretty important thing to point out.
Should it also not be mentioned in the FAQ or manual that this is just a part of the "design" and that one should expect up to X amount of hot/stuck pixels?

And if it is perfectly normal behaviour why would Tony, in an earlier post, write

This is being looked into. When we have more information about this subject, we will let you folks know.

Seems to me a more appropriate response would've been "guys, that's just the way it is, carry on".

I do full time grading and editing and have seen my fair share of material, under-exposed, over-exposed, ungraded LOG, what have you. Yet I have never seen anything so severe (as on my BMPCC at ISO 800) on ANY material I've had come through my hands and on my screen. And you'll have to take my word, but I have seen plenty of awfully shot footage, the kind you say would exhibit the hot pixel issue.
Well not completely true, as I've had material from one C300 with 1 stuck pixel. But that's been it.
Not long ago I shot a spot with 2 BMCCs in a dimly lit environment with no issues whatsoever.
And, if this is also a common issue with the regular BMCC, why haven't anyone commented on that? Besides the black sun-spot problem and the white orbs I haven't heard anyone mention hot pixels on anything but the BMPCC.

And why would BMD be investigating and developing a solution at the highest level if there's no issue?

Go figure..

Almost every answer to your questions to me were answered in my post.

As for Tony, it would be prudent for BMD to investigate just to be on the safe side, it is not an indication or admission that there is a problem. Furthermore, their "solution" might just be to implement a feature such as that in ACR which simply hides hot pixels.

I invite anyone to share a DNG from their camera, shot in proper conditions which still exhibits a hot pixel after grading. I wager very very few will be able to do so.


A simple article explaining: http://kenrockwell.com/tech/hot-pixels/index.htm

Every camera does this.

Even if it's OK today, your camera may start doing it tomorrow.

Don't worry about it. If you look hard enough you'll always find them.

DON'T return a camera because of hot pixels. The replacement will, too, over time.

Most cameras have a few of these at higher ISOs. It's normal. They come and go over time. Almost every camera I own has a couple.

or: http://webpages.charter.net/bbiggers/DC ... facts.html

Fact. Every camera will have hot pixels showing if you test long enough exposures.

Fact. The ONLY thing that really matters is if you see the hot pixels on your pictures and they bother you on your normal exposures.

etc.

I suspect reviewers do not mention it because it is very common knowledge. It would be like warning about FPN when you digitally push footage too far - it would apply to every camera. Or like warning that overexposing on this camera too far causes the image to clip - it would apply to every camera.

Unless you are seeing it in normal exposures, it is not faulty.
Unless the heat is causing actual damage, it is not faulty.


I really want to stress here, I am not simply trying to have an argument or upset people, my sole reason for posting is to reassure those who arent certain if its normal or not.

Tom are you reviewing the footage and clips that people are posting on here? I've sent the footage and stills to Blackmagic and they have asked me to send my camera in. We are not talking about one dead stuck/dead pixel. We are talking about 20-100 scattered all over the footage. The only reason we are talking about the camera getting hot is because the hotter it becomes the worse the pixel issue becomes. We have over 12 years in post and have never seen anything like this before on any other camera. Please review the clips and stills people are posting it's not just a pixel or two.

Jeremy Jenkins

Tom are you reviewing the footage and clips that people are posting on here? I've sent the footage and stills to Blackmagic and they have asked me to send my camera in. We are not talking about one dead stuck/dead pixel. We are talking about 20-100 scattered all over the footage. The only reason we are talking about the camera getting hot is because the hotter it becomes the worse the pixel issue becomes. We have over 12 years in post and have never seen anything like this before on any other camera. Please review the clips and stills people are posting it's not just a pixel or two.

Jeremy Jenkins

The number is irrelevant if they are not visible in properly exposed and graded footage.

30fps 360 shutter = 1/30's (if my maths is correct), shot at 800, lifted 1 stop in post - without any focus peaking on -a 100% crop from a Canon 5d Mkii

http://tommajerski.com/publicimages/IMG_8152.jpg

As you can see, many hot pixels.

Do I see these in properly lit photographs? no.

Ok guys we are not on here to debate who is the camera expert, promote our website, or show a link to our credits. I'm sure that Blackmagic knows their cameras better then any of us posting on here. Once again Blackmagic asked to see our properly exposed footage and we did numerous tests. After Blackmagic reviewed the footage they asked us to send our camera in for repair or replacement. We are not talking about footage with the black cap on either. I find it very interesting that Tom's camera has no issues but he wants to be on this forum telling us we don't know what we're talking about. Don't assume everybody on here is less of an expert then you. Like I said before our company has over 12 years experience working on films and I'm not going to list all our credits for you because that doesn't matter. We solved our problem by sending back one BMPCC to the reseller and ordering another BMCC. We have had no issues with the BMCC and it's been the main camera on the last 4 projects. We are only checking this forum to see if Blackmagic has solved this problem and to see if others are having the same issue.

Ok guys we are not on here to debate who is the camera expert, promote our website, or show a link to our credits.

You are correct, and no one is doing this.

After Blackmagic reviewed the footage they asked us to send our camera in for repair or replacement. We are not talking about footage with the black cap on either.

Care to share a DNG of this? It would be beneficial to others to see an example of the problem in properly exposed footage so as to differentiate it with cap on- 0 light footage.

I find it very interesting that Tom's camera has no issues but he wants to be on this forum telling us we don't know what we're talking about.

Did you read my comments? I clearly stated that my camera exhibited hot pixels if underexposing with slow shutter speed etc

Don't assume everybody on here is less of an expert then you. Like I said before our company has over 12 years experience working on films and I'm not going to list all our credits for you because that doesn't matter.

Ironic that your first comment is that we are not here to debate who is an expert, and yet you are the first to list an example of such.


If you have a problem with your camera, there are 3 kinds of support you can get.

1 - contact reseller
2 - Contact manufacturer
3 - public support forum.

The third is to discuss with other users as to whether their problem is abnormal or not, how others found a solution or advice. If you decide to use a public support forum as your method of diagnosis or to try to resolve a problem with your camera, do not attack users who seek to assist in such diagnosis.

I have invited users to share examples of DNG's exhibiting the problem in normal conditions, so that I may take time out of my own day to have a look to give them a second opinion - which is also a key part of using a public support forum instead of contacting BMD directly. - no one has done this.

I have provided several 3rd party examples of experts supporting my claims regarding how normal this issue is.

I have provided a secondary example of the effect on a different camera, made by a different company but in the same exposure conditions.

Is this not clearly someone trying to help to diagnose or give a second opinion on a public support forum? Rather than someone apparently trying to prove everyone wrong or promote themselves? I sincerely hope you agree, else your opinion of many other contributors on this forum must be fairly low.

Instead of attacking someone who disagrees with you and has evidence to support the claim by suggesting an ulterior motive to posting - why don't you provide examples to others as to how the problem no longer exists for example - by sharing a DNG from your new cam, at 1600 360 shutter with the cap on?

I find it very interesting that Tom's camera has no issues but he wants to be on this forum telling us we don't know what we're talking about. Don't assume everybody on here is less of an expert then you. Like I said before our company has over 12 years experience working on films and I'm not going to list all our credits for you because that doesn't matter.

Best thing is you got your camera fixed.

If you ask Tom "well, exactly how many RAW capable stills/video cameras have you owned that you claim exibited this behavior" you will most likely wait an indefinite amount of time for an answer.

After his bold claims of "grading for hours" in another thread he purposely ignored a direct question about using a calibrated broadcast monitor. Then, ignored a second question about a so called "calibrated" display..

There have been those with great experiences with their cameras (me included) and others that have had broken ones out of the box. Common sense should dictate if you need to call BMD for service or your retailer for a return/replacement.

Tom, we get it. Ok? You are obviously entitled to you opinion, but these rant like posts that are condescending and borderline bashing have gotten your point across. Many times over by now.

On a related note my BMPCC has arrived, thanks fedex..!! havent had a minute to even open the box yet

well, exactly how many RAW capable stills/video cameras have you owned that you claim exibited this behavior"

5 out of 5.

After his bold claims of "grading for hours" in another thread he purposely ignored a direct question about using a calibrated broadcast monitor. Then, ignored a second question about a so called "calibrated" display..

I answered your question.

There have been those with great experiences with their cameras (me included) and others that have had broken ones out of the box. Common sense should dictate if you need to call BMD for service or your retailer for a return/replacement.

Indeed I agree, but asking for help on a support forum is not this. It is asking for other users' opinions.

If you are certain you have a faulty unit, contact BMD or your reseller. If you are not sure, ask on the support forum.

well, exactly how many RAW capable stills/video cameras have you owned that you claim exibited this behavior"

5 out of 5.

And what 5 cameras would they be?
Not trying to razz you, I am honestly curious

well, exactly how many RAW capable stills/video cameras have you owned that you claim exibited this behavior"

5 out of 5.

And what 5 cameras would they be?
Not trying to razz you, I am honestly curious

Nikon D80
Canon Kissx4
Canon 5dMkii
Canon 7D
BMCC

Also seen it on non owned cameras:
600D
60D
500D
D90


How about instead of constantly trying to make this personal - show me a DNG in normal exposure which after grading exhibits Hot/stuck pixels. This is a far more effective and civil way to demonstrate I am incorrect.

Nothing personal about it.

It's not an attack on you, however, so let's not even start with that. Ok?

Here is a clip for people to look at, straight from the camera.
Prores / film mode / f2.6 / ISO800

Is anybody going to claim this is normal/common?

I am in contact with support. They are acknowledging that I have an issue and suggesting I hold on to my camera until they have investigated further.

Here is a clip for people to look at, straight from the camera.
Prores / film mode / f2.6 / ISO800

Is anybody going to claim this is normal/common?

I am in contact with support. They are acknowledging that I have an issue and suggesting I hold on to my camera until they have investigated further.

Could you share a DNG please?

Could anyone take a moment to see my footage? Is that a hot pixel in the circle? It showed up at the second scene .8'', and diapppeared at next frame, I already seen that happened twice. Should I contact BMD local support to exchange this camera?

Shot with BMPCC, Sigma 30/1.4 art and bmpcc speedbooster combo, Prores, ASA800, 180°

Here is the link:

thanks

Theodore sorry if that wasn't clear but we have not gotten our BMPCC camera fixed yet but instead sent back our other BMPCC and upgraded to the BMCC 2.5. So far we've had no issues with our first BMCC 2.5 so we hope the second performs just as good. Please save these two shots from our BMPCC camera to your computer so you can see them in high rez. The first grab is at the beginning of a concert and the second is after recording for 1.5 hours. I'm not posting the actually concert footage but you can see a huge difference in the two shots. I know it's a bit dark but it is properly exposed for when the lights come up for the show. One image is clean and the other is covered in white dots. I know you can correct this in After Effects using Dust and Scratch removal but we shouldn't have to and the clients don't like seeing it on the monitors either. I'm not sure if you want to call this stuck/dead pixels or what because they come and go depending on the temperature of the camera. Some are always there but not to the degree you see on the second image after recording 1.5 hours. We've been filming these for over 4 years using several different types of cameras and have never had this issue. We were also filming with the BMCC 2.5 in Pro Res and its image never had one problem through the entire show. I can't post DNG files because we filmed in Pro Res.

Could anyone take a moment to see my footage? Is that a hot pixel in the circle? It showed up at the second scene .8'', and diapppeared at next frame, I already seen that happened twice. Should I contact BMD local support to exchange this camera?

Shot with BMPCC, Sigma 30/1.4 art and bmpcc speedbooster combo, Prores, ASA800, 180°

Looks more like "digital dust". It's something I also see on Alexa's from time to time.

Never heard of a real reason for why they occur. One theory is cosmic radiation randomly hitting the sensor. Doesn't explain why I've never seen it till the last couple of years.

I've always found it happens when shooting ProRes but not RAW. Did you shoot Prores ?

JB

The "cosmic radiation" theory... there could be something to that. I like it, really, I do..

I remember reading about the Apollo 11 mission to the moon, Neil Armstrongs reported during his debriefings that at times while sleeping, or his eyes closed, that he would "see" an occasional "spark" of light. One theory for this even was that cosmic radiation or other high energy particles racing thru space and went through his body, hitting his retina, or optical nerves or related, setting off a flurry of activity, resulting in the "spark" his mind perceived.

Perhaps the same could happen to a sensor of a CCD

FYI, I received a replacement BMPCC a few weeks ago (mine was returned for some odd file naming issues.. another story)..but I can report, that my camera's sensor appears to be spotless, no hot pixels, no black hole sun, no white orbs, my MFT lens seem to mount more "firmer". I suspect the factor has continued to improve their product over time.

Looks more like "digital dust". It's something I also see on Alexa's from time to time.

Never heard of a real reason for why they occur. One theory is cosmic radiation randomly hitting the sensor. Doesn't explain why I've never seen it till the last couple of years.

I've always found it happens when shooting ProRes but not RAW. Did you shoot Prores ?

JB

Thanks for reply, JB, I really appreciate it.

Yes, I shot Prores, never seen this happen with RAW, and always shown in lowlight situation, any solutions? So it's normal with pocket camera?

Thanks again

Looks more like "digital dust". It's something I also see on Alexa's from time to time.

Never heard of a real reason for why they occur. One theory is cosmic radiation randomly hitting the sensor. Doesn't explain why I've never seen it till the last couple of years.

I've always found it happens when shooting ProRes but not RAW. Did you shoot Prores ?

JB

Thanks for reply, JB, I really appreciate it.

Yes, I shot Prores, never seen this happen with RAW, and always shown in lowlight situation, any solutions? So it's normal with pocket camera?

Thanks again

I wouldn't say it's normal.

It's not pixel related. It's too big and it's only for a single frame.

My feeling is that it's ProRes related. As I said I've seen it on Alexa (shooting ProRes) and BMCC and the pocket.

JB

Looks more like "digital dust". It's something I also see on Alexa's from time to time.

Never heard of a real reason for why they occur. One theory is cosmic radiation randomly hitting the sensor. Doesn't explain why I've never seen it till the last couple of years.

I've always found it happens when shooting ProRes but not RAW. Did you shoot Prores ?

JB

John I did the test a few times over running the camera for 45 mins and it showed up on the Prores and RAW files too. It's very strange it's not there for the first 5 mins of recording but gets worse the longer I record.

I wouldn't say it's normal.

It's not pixel related. It's too big and it's only for a single frame.

My feeling is that it's ProRes related. As I said I've seen it on Alexa (shooting ProRes) and BMCC and the pocket.

JB

Thank you, I will contact local BMD support for an answer.

John I did the test a few times over running the camera for 45 mins and it showed up on the Prores and RAW files too. It's very strange it's not there for the first 5 mins of recording but gets worse the longer I record.

5mins after the camera power up, I found the "digital dust" show up, werid.

My BMCC 2.5 is not showing any digital dust at all in the same conditions and we run it for several hours recording in Prores. For us it's only happened on the two BMPCC we purchased.

Jeremy Jenkins

[quote="movie_]

John I did the test a few times over running the camera for 45 mins and it showed up on the Prores and RAW files too. It's very strange it's not there for the first 5 mins of recording but gets worse the longer I record.[/quote]

Ok.

So to be sure. You're talking about a SINGLE frame pop rather than a full time stuck pixel right ?

JB

John,
Once the pixel dust appears it stays on the footage until I turn the camera off and let it cool down. There are some strange white bigger circles that appear on a single frame every once in a while too.

John,
Once the pixel dust appears it stays on the footage until I turn the camera off and let it cool down. There are some strange white bigger circles that appear on a single frame every once in a while too.

Ok. So that is something else entirely. Digital dust appears for a single frame. You're talking a dead pixel if it's there all the time.

JB.

The crazy thing John is it isn't there the whole time. It's only there when the camera gets hot from continuous recording. Once I stop and let the camera cool down most of the dead/stuck pixels or pixel dust goes away and doesn't show up until the camera starts getting hot again.

Jeremy Jenkins

The crazy thing John is it isn't there the whole time. It's only there when the camera gets hot from continuous recording. Once I stop and let the camera cool down most of the dead/stuck pixels or pixel dust goes away and doesn't show up until the camera starts getting hot again.

Jeremy Jenkins

That's different to my experience.

And let's be very clear that were talking about two separate issues.

One is dead or stuck pixels.

The other is digital dust.

Sensor temperature is a factor with dead pixels.

I'm not so sure that digital dust is temperature related. That's not my experince anyway.

JB.

Thanks John!! I appreciate your help. If I could send you the footage I would but I don't have your email.

anyone with the pixels-dust problem tried the new update?

I tried the new firmware before spending $50 to send the camera in for repair/replacement but it didn't fix the issue.

totally dissapointed, with that issue,
on the video, you can see those pixels, sparkle at some shots,

It appears that the white pixels that were on our BMPCC footage are now appearing on the new Production 4K camera too. This is so disappointing to hear because we were hoping to order one this month. If you go to CINEMA5D and read their review part 3 of the 4k camera they are now having the same issues with it.

Jeremy Jenkins

totally dissapointed, with that issue,
on the video, you can see those pixels, sparkle at some shots,

That's terrible, too many of it

totally dissapointed, with that issue,
on the video, you can see those pixels, sparkle at some shots,

That's terrible, too many of it

Guys I'm pretty sure that's an old film effect and not "hot pixels"... Also according to the filmmaker this video was shot on an FS700 not a Blackmagic camera...

totally dissapointed, with that issue,
on the video, you can see those pixels, sparkle at some shots,

That's terrible, too many of it

Guys I'm pretty sure that's an old film effect and not "hot pixels"... Also according to the filmmaker this video was shot on an FS700 not a Blackmagic camera...

Corrupt Frame we've purchased 4 Blackmagic cameras so far and yes it happened on 2 of our BMPCC Cameras along with all the white pixels. You can read the review of the new 4K camera here where they have the same issues we did with white pixels appearing all over the footage. This is a different issue then the white orbs that appear every few frames.
http://www.cinema5d.com/news/?p=23587

Jeremy Jenkins