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Photography in smoke


johnmac 4 91
26 Aug 2012 7:24PM
Hi all, went to a training session today at work involving people inside a building and working in white cosmetic smoke, the guys had torches fixed to their jackets. The photos I took are good and not bad but nearly all the amages came out looking with noise, even though the iso ranged from 400 to 800 around f4 - f2, shutter from 50 to 80, the histrogram looked ok I also switched between M and A. Some were taken close up so you can see the markings on the helmets. I would post some of the images but they are copyrighted to work.

Any ideas what settings I should be looking at? I might have to do it again

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oldblokeh 3 922 United Kingdom
26 Aug 2012 7:40PM
Why not post some unidentifiable crops?
JJGEE 9 6.4k 18 England
26 Aug 2012 8:06PM
Can you not reduce it in whatever software you have ?

If by chance it is Lightroom 4 then it can probably be fixed without too much of a problem.
johnmac 4 91
26 Aug 2012 8:50PM
Luckily I do have LR4 and have reduced it quite a bit, just wondered as its white cosmetic smoke should I have taken it off AWB and used -03, -07? What a plonker I am should have tried that.
RichardN00 8 430 1 United Kingdom
27 Aug 2012 8:24AM
We're you using flash? Stage smoke is very fine droplets suspended in the air, the noise could be light reflected from inside the droplets (cats eye effect).
Using an off camera flash might help
johnmac 4 91
27 Aug 2012 10:25AM
No flash, talking to a friend he thinks I should have had ISO 1600 and above to stop camera blur and exposure up. I'll give that a try see how I go, I find looking at the histrogram is ok but couldn't tell how sharp the images in smoke were until I put them on the PC.

Thank you to all who replied, much appreciated
Coleslaw e2
9 13.4k 28 Wales
27 Aug 2012 10:34AM
I am not sure what the problem is. If the issue is with noise, then going up on ISO certainly wont help. Taking it off AWB won't help either.

Also, even without using flash, as Richard mentioned, smoke is fine droplets in the air. So, what you mentioned as noise is probably not noise after all.
johnmac 4 91
28 Aug 2012 9:09PM
Guess you're right perhaps its droplets in the air, although this is cosmetic smoke from a smoke machine. Someone suggested to me to dial in compensation and over expose by about 2/3 to one full stop because the smoke looked off white. When I zoomed into the image the people's clothing looked grainy. I may have to do the same in a few weeks, I'll take some images without people and attached them.

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