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<blockquote data-quote="Geoffc" data-source="post: 120694" data-attributes="member: 8705">I recently went FX with the 600 and 800. Taking similar FOV shots in my house of family the DOF is reduced so much I have to be more careful where I focus. This is because I'm using a longer focal length to get the same pics. I've actually found this annoying quite often, but then again I'm not creative.With regards to FX /DX IQ, a good example is the D300 vs d700. Same number of pixels but the size of each pixel on the 700 is probably double the 300, not the same size spread out more. That's why the 700 had legendary low light performance and DR. At 100% crop I reckon my 600 was better with noise than the 800, although the latter is good. I no longer have it to prove that point. However I can down sample the 800 image and lose lots of noise, whilst still having a decent size image.I guess the bottom line is that DX and FX have pros and cons. Which is best depends on the job in hand assuming everything else is equal. I know if the D400 is ever released I'll want one even though I have the 800. Unfortunately my wife is next in line for a camera upgrade.</blockquote>

[QUOTE="Geoffc, post: 120694, member: 8705"] I recently went FX with the 600 and 800. Taking similar FOV shots in my house of family the DOF is reduced so much I have to be more careful where I focus. This is because I'm using a longer focal length to get the same pics. I've actually found this annoying quite often, but then again I'm not creative. With regards to FX /DX IQ, a good example is the D300 vs d700. Same number of pixels but the size of each pixel on the 700 is probably double the 300, not the same size spread out more. That's why the 700 had legendary low light performance and DR. At 100% crop I reckon my 600 was better with noise than the 800, although the latter is good. I no longer have it to prove that point. However I can down sample the 800 image and lose lots of noise, whilst still having a decent size image. I guess the bottom line is that DX and FX have pros and cons. Which is best depends on the job in hand assuming everything else is equal. I know if the D400 is ever released I'll want one even though I have the 800. Unfortunately my wife is next in line for a camera upgrade. [/QUOTE]

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