14 bit v 12 bit

Have your say on issues related to using a DSLR camera.

Moderator: Moderators

Forum rules
Please ensure that you have a meaningful location included in your profile. Please refer to the FAQ for details of what "meaningful" is.

14 bit v 12 bit

Postby the foto fanatic on Tue Feb 26, 2008 9:19 am

I was doing some research on the value of shooting at 14 bits on the D300, and I came across these two rather well-written articles:

http://www.earthboundlight.com/phototip ... 2-bit.html

http://www.earthboundlight.com/phototip ... t-two.html
TFF (Trevor)
My History Blog: Your Brisbane: Past & Present
My Photo Blog: The Foto Fanatic
Nikon stuff!
User avatar
the foto fanatic
Moderator
 
Posts: 4212
Joined: Tue Aug 24, 2004 7:53 pm
Location: Teneriffe, Brisbane

Re: 14 bit v 12 bit

Postby Grev on Tue Feb 26, 2008 10:30 am

I don't shoot in 12 bit anymore after I got the D300. And the transition from 12 to 14 bit is subtle compared to those 16 bit medium format backs.

But of course you can always shoot in 12 bit and use photoshop to add some zing to it I guess.
Blog: http://grevgrev.blogspot.com
Deviantart: http://grebbin.deviantart.com

Nikon: D700 / D70 / AiS 28mm f2 / AiS 35mm f1.4 / AiS 50mm f1.2 / AiS 180mm f2.8 ED / AFD 85mm f1.4 / Sigma 50mm f1.4 / Sigma 24-70 f2.8 macro / Mamiya 80mm f1.9 x2 /Mamiya 120mm f4 macro
User avatar
Grev
Senior Member
 
Posts: 1025
Joined: Fri Oct 29, 2004 4:10 pm
Location: 4109, Brisbane.

Postby Onyx on Thu Feb 28, 2008 12:43 pm

TL;DR* summary:

Works wonders for shadow details - shoot 14bit mode if you have a fetish for shooting 4 stops underexposed and then fixing it up in post processing (great detail recovery possible). But the extra levels afforded by the jump from 12 to 14 bits do not tend to help with highlight recovery. 14 bit mode produces 25% larger NEF file sizes. Significant speed penalty: 6 FPS in 12bit vs 2.5 FPS in 14bit. Might be useful for digitally pushing exposures - ie. deliberately underexposing an image at a given ISO to obtain a suitable shutter speed, then fixing the exposure in PP (usually for extreme low light situations when at max ISO you still need a faster shutter).


* Too long; didn't read
User avatar
Onyx
Senior Member
 
Posts: 3631
Joined: Sat Aug 07, 2004 6:51 pm
Location: westsyd.nsw.au


Return to General Discussion