ok. So everybody knows that due to pixel size and whatnot that high iso shots from full frame cameras look much cleaner and colorful. However I have a little bit of a different question.
If I put a 50mm f/1.4 on a d7000 and a duplicate copy on a d3s, set aperture to 1.4 on both cameras and set iso to 100 on both camera's, and take a picture of the same scene in aperture mode. Will the D3s have a higher shutter speed because of FX sensors superior light gathering or will there be no difference?
Base ISO on a D3s is 200 understand your question, however.
Yes, all things being equal...the FX will have a faster SS than the same lens/settings on DX.
trenchmonkey wrote:
Base ISO on a D3s is 200 understand your question, however.
Yes, all things being equal...the FX will have a faster SS than the same lens/settings on DX.
Why would you say that Will?
If both sensors have the same sensitivity to light (set to ISO 200) and the same aperture, the shutter speed will be the same.
So the ISO rating must be inaccurate on one of your cameras. I'm assuming you're comparing your D7K and D3? Would you happen to have a hand held meter to check what it reads in comparison to your camera meters? I'd be interested to see which one is inaccurate.
I wouldn't say the exposures are different because FX can collect more light but, a cause of ISO ratings being inaccurate. I've seen tests on Dpreview that showed Canon was "fudging" with ISO values a bit, I assume so they could bump those values over Nikon's a bit for the market. Has Nikon taken to the same practice?
I don't have a full frame to do the comparisons myself
Hey! Same day!
You have over 28k posts on me though! You need to shoot more often.
I've been muddled by that tech stuff more than once but why should the SS be different? Seems rather counter intuitive for me. I thought it's a question of metering and ISO, not sensor sizes, as with identical lens/aperture there is the same amount of light per square cm. of the sensor and that's what matters. There might be less noise and better DR (usually there is) due to larger pixels but you need to take sensor tech into account. Old FF sensors weren't exactly stellar in this regard (like the Kodak cameras that only went up to ISO 400 I think )
They should be exactly the same, but the actual sensitivities may vary a bit. If the same lens is used on both bodies of the same brand and era I'd expect NMT ±1/3 stop.
understand your question, however. 
Why would you say that Will? 
try it....you'll see. The FX sensor is bigger...lets in more light = faster SS 
