Blooming theories

The place for questions about shooting with Blackmagic Cameras.
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Mark Davies

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Blooming theories

PostThu Sep 05, 2013 8:33 pm

The camera has been designed to be RAW so the highlights could be setup for RAW. Maybe changing the rolloff for Prores will have a knock on effect for RAW and so can only be matched for one or the other?
Mark Davies
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Mac Jaeger

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Re: Blooming theories

PostFri Sep 06, 2013 1:01 am

Mark2929 wrote:The camera has been designed to be RAW so the highlights could be setup for RAW. Maybe changing the rolloff for Prores...

What do you mean by "rolloff for Prores"? ProRes compression should not change the way highlights are treated in any way.
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Richard Squires

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Re: Blooming theories

PostFri Sep 06, 2013 2:33 am

I also think it shouldn't have to rely on RAW to acquire correct highlights without the bloom. My reasoning is the marketing of the camera as a lightweight camera ideal for and I quote:
Blackmagic Pocket Cinema Camera is everything you need to bring cinematic film look shooting to the most difficult and remote locations, perfect for documentaries, independent films, photo journalism, music festivals, ENG, protest marches and even war zones.

Now yes you could shoot RAW but the workflow as we know is far from the run and gun of ProRes where you shoot and dump to a timeline, edit and it's out of the door.

Also BMCC does not have this issue.
Richard Squires
Broadcast Designer/Director
Melbourne Australia
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vbwood

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Re: Blooming theories

PostFri Sep 06, 2013 2:54 am

Hi Guys,

I have to say I have spent all morning testing in camera to try and get some orbs without success.

It's not sunny in Melbourne the last few days, but my camera is handling chrome highlights off my car and me pointing it directly at a downlight in the office without any problems, so it looks like calibration seems to be the answer, as mine seems to be behaving perfectly with my Panasonic 14 140 HD lens attached.

Cheers,

Vaughan
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Ivan Lee

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Re: Blooming theories

PostFri Sep 06, 2013 3:11 am

vbwood wrote:Hi Guys,

I have to say I have spent all morning testing in camera to try and get some orbs without success.

It's not sunny in Melbourne the last few days, but my camera is handling chrome highlights off my car and me pointing it directly at a downlight in the office without any problems, so it looks like calibration seems to be the answer, as mine seems to be behaving perfectly with my Panasonic 14 140 HD lens attached.

Cheers,

Vaughan


That sounds really good man! Do you have any screengrabs or footage to show? Would be great to see for ourselves!
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Eli hershko

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Re: Blooming theories

PostFri Sep 06, 2013 3:14 am

vbwood wrote:Hi Guys,

I have to say I have spent all morning testing in camera to try and get some orbs without success.

It's not sunny in Melbourne the last few days, but my camera is handling chrome highlights off my car and me pointing it directly at a downlight in the office without any problems, so it looks like calibration seems to be the answer, as mine seems to be behaving perfectly with my Panasonic 14 140 HD lens attached.

Cheers,

Vaughan


Hey there...
Can you shoot into some car's headlights on night street scene and post it so we can see for ourselves please? That will be great... If you can
Thanks
Eli Hershko
http://www.conjuredvisions.com
http://pro.imdb.com/name/nm2860666/
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vbwood

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Re: Blooming theories

PostFri Sep 06, 2013 4:16 am

Sorry Guys,

I can't seem to get the files small enough to be accepted, and haven't got time at the moment to find another site to host them.

I will try to get out at night to test the headlight issue, and get time over the weekend to get the pics up for you.

Cheers,

vaughan
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Mark Davies

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Re: Blooming theories

PostFri Sep 06, 2013 8:59 am

Mac Jaeger wrote:
Mark2929 wrote:The camera has been designed to be RAW so the highlights could be setup for RAW. Maybe changing the rolloff for Prores...

What do you mean by "rolloff for Prores"? ProRes compression should not change the way highlights are treated in any way.

No but using prores is limiting what is captured and I'm sure you understood that.

If you correct for that then how will that potentially have a knock on effect on RAW footage and it could mean much redesigning to accomadate this. The question then becomes does this add extra expense that people want to pay or are most of us after the RAW and can live with the highlight problem. I'm not even saying this is the problem I am just theorising.
Last edited by Mark Davies on Fri Sep 06, 2013 9:15 am, edited 1 time in total.
Mark Davies
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Andrew Deme

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Re: Blooming theories

PostFri Sep 06, 2013 9:11 am

vbwood wrote:Hi Guys,

I have to say I have spent all morning testing in camera to try and get some orbs without success.

It's not sunny in Melbourne the last few days, but my camera is handling chrome highlights off my car and me pointing it directly at a downlight in the office without any problems, so it looks like calibration seems to be the answer, as mine seems to be behaving perfectly with my Panasonic 14 140 HD lens attached.

Cheers,

Vaughan


Melbourne only sees sunlight three days a year so maybe the best idea is to try lights at night (;->>
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Eli hershko

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Re: Blooming theories

PostFri Sep 06, 2013 3:47 pm

vbwood wrote:Sorry Guys,

I can't seem to get the files small enough to be accepted, and haven't got time at the moment to find another site to host them.

I will try to get out at night to test the headlight issue, and get time over the weekend to get the pics up for you.

Cheers,

vaughan



Any success in uploading a few seconds of footage for us to look at?
it would be much appreciated.

Thanks.
Eli Hershko
http://www.conjuredvisions.com
http://pro.imdb.com/name/nm2860666/

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