Quote: I think that in general FF sensors consist from different photosites and are bigger and brighter than the cropped ones. So the cropped FF image using the ~16Mpxl area should give a brighter and less noisy image than the APS-C same sized sensors.
A 15-16 MP sensor ir a 15-16 MP crop sensor, doesn't matter if it's native APS-c or a 35x23 cropped in software to APS-c.
---------- Post added 12-30-15 at 10:39 AM ----------
Quote: I know plenty of hiking and adventure photographers who use f/2.8 zoom lenses because there are too many compromises involved with slower f/4 lenses* to warrant the lighter weight.
I know guys who use Canon or Nikon 70-200s, those are the only ƒ2.8 images I know. And when I shoot my 60-250 ƒ4 with a 1.4 and they are shooting a 70-200 with a 2x, we are shooting practically identical images. So, I'm not with following.
As for the guys with the big huge telephotos, ya, I see them, in parking lots, after short walks to platforms, I've even seen one carry one of those beasts a couple hundred meters, to get from a parking lot to a bridge. I never see them where I go. I guess it just depends on what you call a hiking and adventure photographer. But then I just never see anyone where I go, most of the time, unless I brought them, so I guess that's kind of irrelevant.
I am curious what these problems I'm having with my 60-250 ƒ4 are though.