URSA Mini 4.6k The Original™ Magenta Cast Issue

Am I the only one who has crazy OCD about checking these forums about the magenta issue? I just keep feeling like an update from BM is right around the corner-- minutes away. Then days go by. 100's of forum checks later, still nothing. Anyone else feel like this or am I just a crazy person?

Same here, I'm a bit freaking out with this silence

I've been further testing my camera and found some really horrible FPN!
Blue and brown vertical lines on underexposed areas of the frame at 800 ISO.
1600 ISO... totally unusable.

Anyone with this experience?

Am I the only one who has crazy OCD about checking these forums about the magenta issue? I just keep feeling like an update from BM is right around the corner-- minutes away. Then days go by. 100's of forum checks later, still nothing. Anyone else feel like this or am I just a crazy person?

Same here, I'm a bit freaking out with this silence

I've been further testing my camera and found some really horrible FPN!
Blue and brown vertical lines on underexposed areas of the frame at 800 ISO.
1600 ISO... totally unusable.

Anyone with this experience?

All I know is this has been one hell of a roller coaster. You wait 10 months for a camera and you're pretty pissed, it arrives and you are stoked, then you have issues and you're pissed again haha. When it comes to the FPN I actually realized something weird. Like mentioned before I've already been through two cameras, and I'm currently waiting on the 3rd. Anyways, the weird thing is the first camera was perfect absolutely no FPN even at 1600 but the second suffered from it 800 and up.

Am I the only one who has crazy OCD about checking these forums about the magenta issue? I just keep feeling like an update from BM is right around the corner-- minutes away. Then days go by. 100's of forum checks later, still nothing. Anyone else feel like this or am I just a crazy person?

Same here, I'm a bit freaking out with this silence

I've been further testing my camera and found some really horrible FPN!
Blue and brown vertical lines on underexposed areas of the frame at 800 ISO.
1600 ISO... totally unusable.

Anyone with this experience?

All I know is this has been one hell of a roller coaster. You wait 10 months for a camera and you're pretty pissed, it arrives and you are stoked, then you have issues and you're pissed again haha. When it comes to the FPN I actually realized something weird. Like mentioned before I've already been through two cameras, and I'm currently waiting on the 3rd. Anyways, the weird thing is the first camera was perfect absolutely no FPN even at 1600 but the second suffered from it 800 and up.

Yeah, lots of inconsistencies from copy to copy.
I guess it might be hard for them to test every new camera sent after RMA and check for issues; especially with so many being returned.
Are there so many being returned though?

Am I the only one who has crazy OCD about checking these forums about the magenta issue? I just keep feeling like an update from BM is right around the corner-- minutes away. Then days go by. 100's of forum checks later, still nothing. Anyone else feel like this or am I just a crazy person?

Same here, I'm a bit freaking out with this silence

I've been further testing my camera and found some really horrible FPN!
Blue and brown vertical lines on underexposed areas of the frame at 800 ISO.
1600 ISO... totally unusable.

Anyone with this experience?

All I know is this has been one hell of a roller coaster. You wait 10 months for a camera and you're pretty pissed, it arrives and you are stoked, then you have issues and you're pissed again haha. When it comes to the FPN I actually realized something weird. Like mentioned before I've already been through two cameras, and I'm currently waiting on the 3rd. Anyways, the weird thing is the first camera was perfect absolutely no FPN even at 1600 but the second suffered from it 800 and up.

I got so stoked when I received my second camera with no magenta cast that I forgot to check for anything else. Ended up shooting a job for a client and noticed a dead pixel and terrible FPN at 800! Now I don't know what to do....

Oh, sorry to hear that man.

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Where do each of you stand with your resellers in regards to refund at this moment?

It is a scary thought, for anyone, to have a paper-weight in their hands if BMD stops responding to emails and the 30-day mark passes.

Eli
Kyle
Benton
Morten

Where did you buy your cameras from?

I got mine from BPM in Hamburg, Germany.

My reseller is very relaxed and cool about this matter. He immediately asked if I wanted to void the entire deal incl. cards etc. I told him that I have enough cameras to work with and that I was certain that BMD would settle this. As I still am. He said that if none of the RMAs turn out a health camera, even if it takes months that I can void the deal any time Iike...

My hopes are up and I believe this 'cast' will clear and that UM46 will be the camera that BMD designed it to be.

Am I the only one who has crazy OCD about checking these forums about the magenta issue? I just keep feeling like an update from BM is right around the corner-- minutes away. Then days go by. 100's of forum checks later, still nothing. Anyone else feel like this or am I just a crazy person?

Same here, I'm a bit freaking out with this silence

If you break silence before knowing what is going on it is better to not publicly state anything.
What are they to state, if they don't know what is going on ?

'We have no clue what is going on, Engineering has not been able to figure out why half the cameras are not functioning as advertised'

That would not be smart. Nuno's response from BMD support actually says above but not in a public announcement.

I sense even you aren't heavily invested in it

No worries, I am just playing with words now. After a whole year of anticipation, and waiting for my pre-order, this whole experience has become somewhat comical.

I have trouble believing that any sane CEO would opt to ship thousands of cameras knowing they are defect, playing a bluff into the hand of the layman, desperately seeking hope he won't notice something is off in his images.

Recently for one of my projects I had rented a RED Dragon, cine lenses & gimbal, for a day of production on Sunday, to be shot on the top of Mt. Wilson outside of Los Angeles. We were to leave our rally point in L.A. at 05AM. The person entrusted with the driving the Mini-van to transport the 16 member cast & crew, did not wake up in time and arrived 2 hours late. When we reached up there the gimbal-RED combination did not work as expected (high winds into the mattebox was throwing it off balance), one of the main crucial shots, to justify our 2-hour drive, could not be done.

Did I stop from moving forward? Even though it was not aligned to the vision we set off to create?

There is a flip-side to that coin. If THAT crucial and most important shot was what my company had been paying you for ended up crooked, shaky or out of focus, you had better not show it to me and go do it again until it is right. If not, I wouldn't pay a tired dollar for that flick and hire someone else. On top of that, I'd never book you again and when asked about your services, I'd tell the 'caller' that your quality is Crooked, Shaky and out of focus and that you are not able to tell the difference, given the fact that you presented me with a bad result.

That would ruin your rep

THAT Crucial shot in the BMD analogy is the IMAGE !

Well, we all behave a little bit like the beaten wife not able to let go from her hostile husband. We wish so much that BMD succeeds with the UM4.6k that we are willing to accept a lot of respect-less behavior from that company.
How a wide spread camera problem can be handled in an open and fair way was shown by RED when there was a problem with their camera. They acknowledged the problem, worked on it and presented a solution.
That's the way you build trust.

From BMD we hear totally different statements through the support people, going from some kind of acknowledging, over denial, to ignoring, blaming others and downplaying.

Over the last weeks I was feeling like I made a bad decision when ordering the camera, because of the way BMD handles this situation. I was almost on the edge of cancelling my order, but I have decided to let BMD bleed for that by RMA-ing the hell out if it, as long as the camera shows a problem.
And I will document that on my blog for my readers.

Add me to the magenta cast club . I pre-ordered in early September from B&H and it arrived today. I just shot some tests and have stills below.

First, some context. I'm a longtime Blackmagic fanboy. I've used the BMCC, BMPCC, BMPC 4K, URSA Mini 4K, and now 4.6k today. The BMPC was my main rig for 2014-2015 and I got great results (albeit with a “frankensteined” rig). I replaced it with the URSA Mini 4K in January and have been using it since. It has served me very well, despite its flaws, and I posted a comprehensive and practical review recently. I'm not allowed to post URLs to this forum apparently, so you have to copy/paste: vimeo.com/160519759 (22 min long btw)

Bottom line: I’m not a hater. To the contrary, I’m a Blackmagic evangelist and I can see the bigger picture. IMO, this is the most disruptive company in this market, and IMO the image quality on the BMPC and URSA Mini 4K — when you have enough light —- are better than the FS7, a camera that is nearly twice the price. Not to mention URSA Mini has better resolutions, frame rates, codecs/workflow, etc.

That said, this magenta issue is bad enough I'll likely return it right away and shoot my next client project on the URSA Mini 4K, which doesn’t have any magenta cast, even though native ISO is 2x lower and it has fewer stops. I’ll report back on the RMA process with B&H once I go down that road with this 4.6K cam.

MY TEST
I shot against an off-white wall in overcast weather on a tripod. Seeing an earlier comment about vintage lenses, I included both a vintage and a modern lens.

- Lens: Leica Summilux-R 35mm f1.4 (w Leitax EF adapter)
- Lens: Canon 35mm f1.4L
- Apertures: f1.4, f2.0, f2.8, f4, f5.6, f8, f11 (shutter adjusted for exposure)
- Codec: 4K ProRes LT (what I use 90% of the time)
- Color temp: 5600K
- ISO: 800
- No filters

And here are 42 PNGs exported from Premiere: bit.ly/bmdtest5 (sorry - you have to copy/paste URL)

I know we prefer DNGs from RAW, but these tell the same story, reflect my workflow, and are easier to share. There are 3 folders with 7 images from the Canon and 7 images from the Leica in each. Filenames indicate aperture (e.g. f1_4, f8, etc):
- BMDFilm (straight off the camera)
- LUT (using CaptainHook’s BMDFilm2Vid BasicV1 LUT)
- LUT+3xSaturation (same LUT, plus 300% increased saturation). Purely for illustration - obviously no one colors like that.

And here’s a sample from the Canon 35mm f1.4L at f11 with just the LUT applied (full rez at link above):


Hopefully this is useful.

Hey guys. So we got our 4.6k on Monday and have been testing it since. No DNGs for now, but I will provide those for you guys some time soon. So far, it looks like we got a clean sensor. Attached you'll find images of flat and super-saturated shots of clear blue skies, where I've seen some of the worst magenta come around. I pushed the saturation to 300%. If any of you can see something that I can't, let me know, but to me it looks clean.

We shot with the following settings:
5600k WB
180deg SA
800 ISO
1080 ProRes HQ
Full Sensor

The lens for these shots is a Nikkor 18-55mm f/3.5-5.6 used with an adapter of course.
We shot at around f/10 and at 18mm. (EDIT: Correction, we did not shoot wide open.)

We've also shot with two other Nikkors and have yielded similar results, no magenta.

http://imgur.com/a/5BAvM

Just FYI, we've also shot with a Canon 24mm 1.8, and that looked fine as well. I can post screenshots of that upon request, but sadly I won't have DNGs of that.

Hey guys. So we got our 4.6k on Monday and have been testing it since. No DNGs for now, but I will provide those for you guys some time soon. So far, it looks like we got a clean sensor. Attached you'll find images of flat and super-saturated shots of clear blue skies, where I've seen some of the worst magenta come around. I pushed the saturation to 300% on those that are saturated. If any of you can see something that I can't, let me know, but to me it looks clean.

We shot with the following settings:
5600k WB
180deg SA
800 ISO
1080 ProRes HQ
Full Sensor

The lens for these shots is a Nikkor 18-55mm f/3.5-5.6 used with an adapter of course.
We shot wide open and at 18mm.

We've also shot with two other Nikkors and have yielded similar results, no magenta.

http://imgur.com/a/5BAvM

Dont you need to shoot raw files full resolution? 1080p is cropped mode i think if I'm not mistaken.
Anyway
I am pretty much sick to my Stomach...10 months of waiting for this camera...thousands of dollars spent and still have to deal with this nonsense! What a joke!

Hey guys. So we got our 4.6k on Monday and have been testing it since. No DNGs for now, but I will provide those for you guys some time soon. So far, it looks like we got a clean sensor. Attached you'll find images of flat and super-saturated shots of clear blue skies, where I've seen some of the worst magenta come around. I pushed the saturation to 300% on those that are saturated. If any of you can see something that I can't, let me know, but to me it looks clean.

We shot with the following settings:
5600k WB
180deg SA
800 ISO
1080 ProRes HQ
Full Sensor

The lens for these shots is a Nikkor 18-55mm f/3.5-5.6 used with an adapter of course.
We shot wide open and at 18mm.

We've also shot with two other Nikkors and have yielded similar results, no magenta.

http://imgur.com/a/5BAvM

Dont you need to shoot raw files full resolution? 1080p is cropped mode i think if I'm not mistaken.
Anyway
I am pretty much sick to my Stomach...10 months of waiting for this camera...thousands of dollars spent and still have to deal with this nonsense! What a joke!

ProRes HQ shoots with full sensor area, if you still have your cam look at the menu for confirmation. I've also shot UHD with the same lens and it was the same image, so I'm confident it's the full sensor size.

Sorry you have to deal with this man, that really sucks. I was nervous about buying this cam and on the way back (we picked it up a city away), but so far so good and I'm really thankful and lucky. Seems like BMD is dealing with some QC issues when it comes to this camera, and as others have stated, some are getting lucky cameras and some are not.

Thx... I went thu that with my pocket and bmpc... You'd think I should learn my lesson and stop being an early adopter with BMD so it's on me. Fool me once kind of a thing...
I am waiting for a good copy I guess which should not be the case when you are buying a product!

I am waiting for a good copy I guess which should not be the case when you are buying a product!

Except for products made in the USSR.

Ok, so:

This is with the following:
800 ISO
1080 ProRes HQ
5600k temp
180deg

Lens:
40mm Nikkor
f/13

Two frames, each with a 300% saturation counterpart.

So here I think I do notice some very slight shifting in the corners, but I'm not sure that it's magenta. I used paint to compare the corners and there is definitely a shift, though nowhere near as dramatic as some others have shown and reported. Any feedback here guys?

http://imgur.com/a/jJLXI

One comment from a total newbie when it comes to cinema cameras: This to me is still very usable. Would anyone care to educate me on why that might/might not be the case? I honestly see very little problems with this kind of shift in the corners, and see a very usable image still. I don't notice any shifting at all on some of the other footage I've shot, and definitely none when I've shot in windowed mode.

P.S. When it comes to the lens, I've also shot with a 24mm canon at different stops, and I didn't notice any magenta whatsoever. Just an extra two cents.

Those clouds look a tad magenta to me but man it looks like you got a great sensor. Miles better then both of or cameras


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those are full frame shots, or windowed?

Ok, so:

This is with the following:
800 ISO
1080 ProRes HQ
5600k temp
180deg

Lens:
40mm Nikkor
f/13

Two frames, each with a 300% saturation counterpart.

So here I think I do notice some very slight shifting in the corners, but I'm not sure that it's magenta. I used paint to compare the corners and there is definitely a shift, though nowhere near as dramatic as some others have shown and reported. Any feedback here guys?

http://imgur.com/a/jJLXI

One comment from a total newbie when it comes to cinema cameras: This to me is still very usable. Would anyone care to educate me on why that might/might not be the case? I honestly see very little problems with this kind of shift in the corners, and see a very usable image still. I don't notice any shifting at all on some of the other footage I've shot, and definitely none when I've shot in windowed mode.

P.S. When it comes to the lens, I've also shot with a 24mm canon at different stops, and I didn't notice any magenta whatsoever. Just an extra two cents.

To evaluate it, please post DNG files from shots that include something with known gray or white sources (or a color chart if possible) and without using an ND filter. A simple shot of pavement with sky and clouds in the background makes it pretty easy to tell if there is an uneven cast. If there is a cast, it will show up at normal levels of saturation, no need to jack it up to 300%.

That's what i asked him... He is shooting pro res hd or uhdwhich is windowed in my opinion meaning it does not utilizing the entire sensor the way I understood it but perhaps I'm wrong

That's what i asked him... He is shooting pro res hd or uhdwhich is windowed in my opinion meaning it does not utilizing the entire sensor the way I understood it but perhaps I'm wrong

HD ProRes files from the Ursa Mini can either be a downscale of the full sensor or a windowed crop. Both are possible, it simply depends on how you set the camera.

DNG files are useful for evaluation because we can see exactly what the sensor is capturing. Simply posting screenshots from ProRes files adds too many unknown variables. They are useful for description, but it is hard to draw conclusions without viewing raw DNG on scopes through Resolve.

Just got my UM 4.6k from Adoroma (free shoulder kit with purchase no tax if not in NY). No magenta or any cast, no vignetting. Going to be testing sound over the weekend (Using high end mics through Sound devices recorder then straight into the 4.6k for comparison), but so far looks like I got a good copy.

Very glad to hear you received a good sensor. Please share some DNGs as many of us would like to see good samples from an EF mount 4.6K. Thanks!

The 70-200 still does not work =\

I got the Canon 70-200 2.8 focus and aperture to work on mine, but not the image stabilization. Is that the model lens you were referring to?

...rember, that the issue does not occur in every situation. When i checked my UM last week, I put my 24-70 L II on and didnt see any magenta issue and was happy for one hour...but, when I put on my 24mm 2.8 wwith f8 there was magenta on the right side and corners...I am sure, there is no good camera out there...

That's what i asked him... He is shooting pro res hd or uhdwhich is windowed in my opinion meaning it does not utilizing the entire sensor the way I understood it but perhaps I'm wrong

HD ProRes files from the Ursa Mini can either be a downscale of the full sensor or a windowed crop. Both are possible, it simply depends on how you set the camera.

DNG files are useful for evaluation because we can see exactly what the sensor is capturing. Simply posting screenshots from ProRes files adds too many unknown variables. They are useful for description, but it is hard to draw conclusions without viewing raw DNG on scopes through Resolve.

Hey, ok so yes it was all full sensor. I'll have DNGs for you guys hopefully sometime today but I can't promise anything.

Thank you JE.

Looks like my post with 4K ProResLT tests just showed up above if you all have any thoughts (I'm not allowed to link apparently). And here's a DNG from a RAW 4:1 clip (Leica Summilux-R 50mm @ f16): bit.ly/camtest9

You guys think my cam is among the worst?

Got my THIRD 4.6k EF. Has the same issue.

It is striking to me, however, that this color problem is dramatically more visible with the Sigma 18-35mm at 35mm. The exact same circumstances on other lenses at the same focal length and aperture results in the color shift being far more subdued.

Got mine today. Also magenta corners. Will make sure light is even tomorrow by doing a better test.

Used 24-70 f/2.8 L.

Serial starts with 2849.

//A

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OK, by no means am I claiming absolute similarity, but I found the following fascinating:


W W W.l-camera-forum.com/topic/153464-towards-an-explanation-of-the-italian-flag-phenomenon/?p=1758723


I recommend reading the whole thread for some background.

LOL Anders, it's the first numbers that help us, not the last ones?

LOL Anders, it's the first numbers that help us, not the last ones?

Got it. Tired

2849.

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Thanks Anders!

How do we breakdown the BMD camera serial number?


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[Kristian Lam]

I apologise if we’re coming across as being silent on this issue. Fact of the matter is that we’re not trying to brush this aside. We have been gathering reports lodged with our support teams, and doing everything we can to get to the bottom of what you guys are reporting.

We don’t want to speculate and draw any conclusions until we have finished our investigation.

I apologise if we’re coming across as being silent on this issue. Fact of the matter is that we’re not trying to brush this aside. We have been gathering reports lodged with our support teams, and doing everything we can to get to the bottom of what you guys are reporting.

We don’t want to speculate and draw any conclusions until we have finished our investigation.

Thanks for the update Kristian. Small updates like these really help keep everyone calm.

Here's one more sample. I wanted to replicate an average shoot for me in terms of settings and filters, and shoot a real object instead of an off-white wall. Truth is, I really don't want to return this camera if I don't have to... unfortunately, I'm seeing similar results.

- Lens: Leica Summilux-R 35mm f1.4 (w Leitax EF adapter)
- Aperture: f11
- Shutter: 180 degrees
- ISO: 1600
- Codec: 4K ProRes LT
- Color temp: 5600K
- Filters: UV/IR Cut + Variable ND (80%)

Basic LUT applied; saturation unchanged (at 100% in Lumetri):


Basic LUT applied; saturation at 130% (a realistic boost on a more stylized shot):


Nice to see BM have at least broken the silence on this. Seriously rooting for you guys to get to the bottom of this, and hopefully do the right thing for all of us who've purchased the camera with this issue. Thanks

Forgot to mention, my serial # begins 2924.

I apologise if we’re coming across as being silent on this issue. Fact of the matter is that we’re not trying to brush this aside. We have been gathering reports lodged with our support teams, and doing everything we can to get to the bottom of what you guys are reporting.

We don’t want to speculate and draw any conclusions until we have finished our investigation.

Thank you for this update. Can you tell me if BM techs have been able to reproduce this issue in cameras returned for this problem? The first step I always take when trying to address an issue is to reliably reproduce it. It is then possible to conduct controlled experiments to zero in on the underlying causes and to test possible solutions.

Looks like my post with 4K ProResLT tests just showed up above if you all have any thoughts (I'm not allowed to link apparently). And here's a DNG from a RAW 4:1 clip (Leica Summilux-R 50mm @ f16): bit.ly/camtest9

You guys think my cam is among the worst?

Sorry to see that you also got a bad one. Based on the single DNG, it doesn't appear to be quite as extreme as the 4.6K I was sold, but it does exhibit the same uneven magenta cast that appears most strongly along the right side of the image.

Let us know how your RMA goes. I'm three weeks in and still being held in limbo - no RMA, no refund. Nothing. I hope you have better luck.

I apologise if we’re coming across as being silent on this issue. Fact of the matter is that we’re not trying to brush this aside. We have been gathering reports lodged with our support teams, and doing everything we can to get to the bottom of what you guys are reporting.

We don’t want to speculate and draw any conclusions until we have finished our investigation.

I hope you find the answers Kristian. In the meantime you really need to explain why my reseller is telling me that BMD will not allow my defective camera to be sent for RMA. I've read others on the forum are getting a similar response from their resellers. Why can't we return a defective product? Is BMD really not allowing defective cameras to be returned?
Please clear this up. Thank you.

I apologise if we’re coming across as being silent on this issue. Fact of the matter is that we’re not trying to brush this aside. We have been gathering reports lodged with our support teams, and doing everything we can to get to the bottom of what you guys are reporting.

We don’t want to speculate and draw any conclusions until we have finished our investigation.

I hope you find the answers Kristian. In the meantime you really need to explain why my reseller is telling me that BMD will not allow my defective camera to be sent for RMA. I've read others on the forum are getting a similar response from their resellers. Why can't we return a defective product? Is BMD really not allowing defective cameras to be returned?
Please clear this up. Thank you.

Jamie, no use for sending the camera back for RMA. For now, they just return the faulty camera back to you as is. At least that happened to me.

I apologise if we’re coming across as being silent on this issue. Fact of the matter is that we’re not trying to brush this aside. We have been gathering reports lodged with our support teams, and doing everything we can to get to the bottom of what you guys are reporting.

We don’t want to speculate and draw any conclusions until we have finished our investigation.

I hope you find the answers Kristian. In the meantime you really need to explain why my reseller is telling me that BMD will not allow my defective camera to be sent for RMA. I've read others on the forum are getting a similar response from their resellers. Why can't we return a defective product? Is BMD really not allowing defective cameras to be returned?
Please clear this up. Thank you.

Jamie, no use for sending the camera back for RMA. For now, they just return the faulty camera back to you as is. At least that happened to me.

Uh?!

Kai, what exposure and focal lengths were you shooting at? If it included 35mm at f5.6 - f15 then that is really good news.

Hi yes we mainly used the 35mm Xeen at 5.6 for the green-screen... For the other projects we were all over the place with lenses and Aperture...

Kai, there are good 4.6K sensors; they're not all deficient. Rest easy. If you tried to find it and your colourist didn't comment on it, you are blessed.


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Thanks Rick yes I think I got lucky... One of my BMCC's 2.5k had really bad banding issues when I first got it right after it came out. I send it in for For repair and I am rather sure BM exchanged the camera... Has been working perfectly ever since... Would suggest to send the faulty cameras in. Did anybody try?

I sent my 4,6 two weeks ago for RMA.. Still waiting for some news but nothing yet.
I'm pretty confident that I'll get back the same camera or a new one with the same issue. I'm scared that if I don't return it now to reseller, in 6 months a V2 sensor will arrive on market with some minor changes and magenta free. It happened already with URSA (big) and FPN issue; and AFAIK BM didn't swapped V1 sensors with strong FPN with V2 for free (under warranty)

I apologise if we’re coming across as being silent on this issue. Fact of the matter is that we’re not trying to brush this aside. We have been gathering reports lodged with our support teams, and doing everything we can to get to the bottom of what you guys are reporting.

We don’t want to speculate and draw any conclusions until we have finished our investigation.

I hope you find the answers Kristian. In the meantime you really need to explain why my reseller is telling me that BMD will not allow my defective camera to be sent for RMA. I've read others on the forum are getting a similar response from their resellers. Why can't we return a defective product? Is BMD really not allowing defective cameras to be returned?
Please clear this up. Thank you.

You don't need an RMA from the manufacturer to return a defective product to the reseller for exchange or refund. If the reseller won't take the camera back call your credit card company. Even if you're outside the return policy, if the product is defective, under warranty, and cannot be fixed, they need to take it back. Your credit card company will give you your money back. You may need to ship the camera to the reseller with a tracking number so you can prove that you gave the camera back to the reseller, but call your credit card company and discuss with them first. They'll tell you how to proceed. They'll likely call the reseller to investigate first. Consumer protection laws were created partly for situations like this.

I apologise if we’re coming across as being silent on this issue. Fact of the matter is that we’re not trying to brush this aside. We have been gathering reports lodged with our support teams, and doing everything we can to get to the bottom of what you guys are reporting.

We don’t want to speculate and draw any conclusions until we have finished our investigation.

It's not that you're coming across as being silent, you are being silent. Take a cue from Red on how they handle similar situations. It's not that difficult to have someone be the face of BMD and come on here more often (maybe on a daily basis) to reassure customers and potential customers that the issue is still being looked into and what the plans may be to resolve it. Heck, the guys running Red post on their forum every day all day, answering questions and responding to concerns from their customers directly.

Over 3 weeks ago you stated that it could be fixed in Resolve, but gave no actual methods even after multiple requests and replies to your post about it. You stated that it's the lens causing the issue, but when examples were given of the same lens on other cameras not exhibiting the issues there was no response. You stated that the issue is "the look", but when examples were given of cameras that don't have this issue to dispute that there was no response. All you're doing is losing customers as the days go on. How many people have already returned their camera or canceled their order and went with a Red Raven, Red Scarlet, FS5, FS7, or some other camera?

If that initial response was incorrect, then just say so. It's as simple as saying "Our initial assessment was incorrect. We are looking into what is causing what is being reported. We will update on our investigation every x number of days so you all know it's continually being looked at and a resolution being explored." Or something like that. I know that's basically what you just said (minus the bit about the updates), but that should have come 3 weeks ago. Up to now it felt like BMD was just trying to sweep this issue under the rug.

EDIT: Here's a shining example. Look how quickly Red quashed this issue. Only 20 posts and 11 days before they responded (with a fix btw), and the thread was only 171 posts. http://www.reduser.net/forum/showthread ... post918597

This thread has 1,244 posts right now, with no idea of a solution in sight.

Or this one, with a response and fix within a day. http://www.reduser.net/forum/showthread ... sed-by-Red)

All that said, I hope you guys are able to figure this out and fix it. These will be amazing cameras if you do.

This thread has 1,244 posts right now, with no idea of a solution in sight.

Or this one, with a response and fix within a day. http://www.reduser.net/forum/showthread ... sed-by-Red)

All that said, I hope you guys are able to figure this out and fix it. These will be amazing cameras if you do.

If BMD were a disruptive company, they should be serious. I was sitting on the fence, crossed over to Red Raven. I can wait for 1500 posts for an answer from BMD, but ppl should be forthcoming!

Reading about all the unsuccessful exchanges and with no solution in sight, I’ve decided to return my 4.6K to B&H for a full refund and wait and see what happens in the coming months, both with Blackmagic and with RED. The reality (which works in Blackmagic’s favor) is that this camera is still the best at its price point if, and only if, it can be free of issues. @Jamie the return appears to be going through fine with B&H, as I’m within 30 days of purchase.

IMO, the A7Sii isn’t comparable, due to form factor and “jello.” The FS5’s image is inferior. The FS7’s 30% more expensive fully built, and doesn’t look as good IMO. We can only dream of Alexa Mini ($$$). So RED Raven 4.5K is the closest thing, but it appears to be ~50% more expensive built-out, and no ProRes at 4K (only redcode raw). So, I really do hope Blackmagic can fix this and get working 4.6k cams back into our hands soon.

Another observation on the magenta mystery (sorry if already discussed): at lower f-stops, magenta appears in the center of the image. As you stop down, it moves outward. So, it’s center at f1.4 to ~f3.5, more even ~f4, then first on the outer edges ~f5.6, intensifying to f11+.

- Lens: Leica Summilux-R 35mm f1.4 (w Leitax EF adapter)
- Shutter: 180 degrees, ISO: 800, Codec: 4K ProRes LT, Color temp: 5600K
- Filters: UV/IR Cut + Variable ND (adjusted to keep shutter constant)

f1.4 - Basic LUT; saturation at 130%:


f4 - Basic LUT; saturation at 130%:


f5.6 - Basic LUT; saturation at 130%:


f11 - Basic LUT; saturation at 130%:

I can attest to the fact we have received and forwarded issues we've seen to our engineering team and they are diligently working on this and want to thank you for your patience during this time.

I do want to reiterate what Kristian has said with providing information. We do want to give you proper guidance as to what the next step is but we want to be able to provide the most information we can rather than tidbits at a time. Once that information becomes available, we will have that here.

@Mike Halper

Have you provided any footage from your camera to our support team? I may have missed where you shared those images in this or another thread but we would be happy to assist you if you could send those into our support offices.

Same magenta issue on my cam #2894841. Using 16, 24, 35, 50, 85mm Rokinon lenses, and seems most prominent on my 16mm and 85mm. Every lens I've used seems to show saturated magenta corners, green middle at F8 and up, but at varying saturation. Difficult to notice on most lenses under f4.

My camera also suffers from terrible FPN at 1600, with a wide blue bar running vertically near the center of the frame. Still visible at 800, but less so. Both issues were sent with footage to support already, just wanted to post the serial # in the case that may be helpful in solving this issue.