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Originally posted by CWyatt Not necessarily, full-frame might give you the resolution to crop more tightly, which is essentially what the APS-C is doing with your full-frame lens anyway.
I'm afraid I'm missing something.
FF is about twice the area of an APS-C sensor, right?
Given use of the same lens, the image of the C-5 on that FF sensor will be exactly the same size as it is on the APS-C sensor, only with a lot more blue sky around it. The FOV on FF is based on the lens' true 300mm focal length and the FOV on the APS-C looks like a 450mm-equivalent lens was used.
In PP, I can crop away the extra blue sky on the FF image and break even - now the aircraft image is the same portion of the total image. To keep just the same number of pixels representing the aircraft, the FF sensor must have slightly more than double the number of pixels as my APS-C sensor. That's 14.6 MP X ~2 = 30+ MP.
If I need 30+ MP to break even, then to get an improvement I'll be waiting a while and then spending a very large amount of money for what is, today, an MF sensor.
Again, am I missing something?