A question haunting me: The Sony A7 Mk II offers 24mb resolution. I shoots birds and butterflies; even with a 400mm lens, very often I end up cropping the FF image to APS-C size or smaller; often I shoot in APS-C mode for 'perceived reach' that gets me a 10mb image file. How would that compare with using say the APS-C size Canon 80D (also 24mb)? Here I would have a non cropped 24mb file as compared with a similar Sony A7 cropped image which would be a 10mb file. Which would offer better image quality for making prints of size 20x30 inches?
Around noon in an iconic Icelandic spot. Early December of 2016.
Sony A7 with Olympus OM 18mm manual focus lens. More images made with this lens and the A7 here: http://fourbillionyears.org/a-tiny-giant-om-zuiko-18mm-f3-5/