« on: February 17, 2015, 04:23:32 PM »
A very interesting conversation for me because I have been pretty disappointed with the 7D Mark II.
I have very good eyesight and the view through the viewfinder and a 100-400 L II is really very good.
The camera looks as if it's locking on focus extremely well.
The photos however I am finding are disappointing.
I would say quality wise no better than my old 500D.
I had though APS-C sensors had come along way since the 500D but it doesn't seem so with my copy of the 7D Mark II.
It's a lack of resolved detail I'm finding most disappointing.
Maybe I'm spoiled by the 5D Mark III but I find the pixels seem to smudge into each other alot earlier than I am expecting. No better than a 500D sensor.
I understand it's a cropped sensor but I thought at 20+ MP it would resolve detail better.
Photos do look a bit soft compared to how they seemed through the viewfinder.
Could these issues be caused by an AA filter or something similar that was intended to smooth out noise at higher ISO's? Or maybe something in the in-camera processing of the image? I can't imagine the actual sensor tech has taken a step back...
(I know this question in various forms has already been asked in this thread, but I was hoping some our more engineering enlightened members might chime in. )
Almost certainly the AA filter softens the image which requires post sharpening either in or out of camera. However the AA filter will not affect AF, at least with phase detect AF it wont. Most of the issues are with AF problems.
AA filters were introduced to reduce moire patterns, particularly in video. If you shoot mostly wildlife and natural landscapes moire is not an issue...though you can get it on feathers of birds in some situations. The AA filter seems particularly strong on the 7D2 and could be due to the smaller pixel pitch and their anti-moire requirements.