Would the FF automatically be better in image quality, given the same pixel density? Then imagine a 45MP FF camera at 600mm, then in crop mode giving the same 900mm reach at a very similar pixel density. Looking for some advice! So, imagine a 20MP DX camera at 600mm giving an effective reach of 900mm. Depending on which M43 sensor and which FF sensor you're talking about (read : compare pixel pitch), you can often get the same reach with 400mm or 450mm on FF versus 300mm on M43. For instance a 300mm lens on a M43 body is not the same as a 600mm lens on a FF body in terms of resolution/reach. There's lot of confusing non-sense on the internet about crop sensors cameras having more reach than FF cameras. SO at FF (600mm) you might have better noise than the DX, but in crop mode the noise becomes higher? Hope that makes sense! If this is the case, then I imagine a TC is better than cropping in camera? Advice and thoughts appreciated!įor a given lens, if the two sensors have the same pixel pitch and similar sensor tech (including same antialiasing filter if any), the result would be exactly the same in terms of image quality between an image from the crop sensor and an image from the FF sensor cropped to APS-C size in post. Would the FF automatically be better in image quality, given the same pixel density? Or is there a catch? I am thinking that 'zooming in' with the FF in crop mode may also make noise more obvious, even though pixel density is the same.

Crop sensor camera