Dynamic Range Test

I've been pretty happy with the DR I've been eeking out of the 5D2.. Just based on perception it seems that it's past the 10 stop mark but I could be wrong : ) One thing I've found is that old non contrasty glass seems to help with DR in the 5D2..

This was shot right around noon, probably the worst conditions one can attempt an exposure in.. I was happy.

http://www.vimeo.com/6921209
 
mkfotos.com said:
TA 5DII is rated at 11.9 by the same site, and a little optimistic compared with another site's findings of 11.1 ( http://www.dpreview.com/reviews/CanonEOS5DMarkII/page25.asp ), so the 13 stop range measured by dxo might be a ~12.2 if measured by dpreview. Anyways, different copies of a body coupled with different testing methodologies will obviously yield different results, but there you have it, a high/low range.
Click to expand...

Dpreview uses jpgs and does measurements visually on a step chart. Not only that but the reviewer is the one that defines where the acceptable noise floor is. Dxo on the otherhand algorithmically measures DR from raw files, so is probably more accurate for absolute numbers.

Homunculus said:
Red One Mysterium was 17,000 5 year old technology and had 11.5 or 12 stops so why can't something for 1/3 the price 5 years later have similar DR? There are computers now 1/3 the price of those 5 years ago that are ten times more powerful
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comparing dynamic range improvements to processing improvements is not valid since there are limits to the physics that hamper things like sensitivity and DR such as the actual number of photons collected over the given exposure.

There are still advances to go but progress has slowed. Things like algorythms to aid in DR will help however (like multi exposure) but to do it on camera takes a lot of processing not to mention the technical problems associated with the electronic shutter needed to pull it off with the least artifacting... But again computations can also remove some of those artifacts...
 
Hate to be that guy again, but why such the debate? I understand some are simply curious, some debating which camera is right for them, etc... but can't the vast majority practically agree that it's above 10 stops, and that is obviously a good thing, but whether or not it might be 11 or 12 will not cripple a production, just seems the debate could be turned in a more useful direction

i'm always swayed toward real world situation, kinda like how back in high school instead of taking physics, i took physics and tech, which we got to learn the physics and build things like catapults, model boats, bridges, etc... to test and see the physics at work, instead of just learning formulas and charts. perhaps take the same approach here, put forth some real world situations and samples of high and low DR in your respective applications and needs.

just a thought!
 
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