Reply to thread

Message: <blockquote data-quote="richlewt" data-source="post: 165161" data-attributes="member: 14263">HiThanks all for your kind replies. I think I need to expand.When I said the sensors are a similar size, the size I was referring to was not physical size but number of pixels.The D7000 has 4928x3264 the D4 has 4928x3280 which means they both have the same number of light gathering sensors, its just that the D4's are bigger and further spaced, hence the brighter viewfinder."Why on earth would someone want to crop an image from a D4 to get it to the same size as a D7000?"Let me expand. The scenario I was trying to portray was, say we are using the 70-200 at the full focal length of 200mm taking a photo of a racing car, stood behind a barrier, i.e. I cant physically get any closer and I want the car to fill the frame. With the D7000 and the 70-200 at 200mm focal length because of DX sensor this gives me an effective focal length of 300mm and a corresponding angle of view. Same position but using a D4 results in my 70-200 giving me a true 200mm focal length and a wider angle of view. I would then have space around the outside of the car. If I now want to fill the frame with the car (using a D4) I either have to buy a 300mm lens, move closer (which I cant), or crop the image.I think the resulting image from the D4 would be somewhere in the region  of 3252x2164. If both images were now say printed at 300dpi, I think I  am right in assuming the D7000 would print larger or be better at the  same print size?This is what I am trying to understand. </blockquote>

Verification