Originally posted by Dan Rentea And the last question: how much time did you spent with A7R IV and G master lens shooting landscapes so that you can have a verdict?
I haven't spent any time with any G master lens, I know that they diffract as much as any lens when stopped down. You can put perfect glass in a lens, as soon as there is an aperture, the aperture will limit how much resolution the system can resolve, that's what we call a diffraction limited system.
---------- Post added 13-08-19 at 11:13 ----------
Originally posted by Dan Rentea Again, I'm not shooting landscapes, but as I said, I spend time among the ones who shoot landscapes and live from the printed images they sell. You know why they love D850 beside its resolution? Because it has the focus stacking (focus shift) option in camera so that they don't need to shoot at f11-f13 when they want all in focus.
Yep, focus stacking, it works only on tripod. I've shot landscapes hand held with foreground and background at f8 and f5.6 to avoid diffraction, and when I stacked the frames with Helicon focus, it was enable to align the frame without creating artifacts. I would have needed a tripod etc . etc.. falling into medium format type of setup.
---------- Post added 13-08-19 at 11:14 ----------
There's no free lunch... more pixel density is not a miracle solution.
The benefit of more of smaller pixel is that you can crop, use a wide FoV and open up the aperture. But that's a choice, as it is cheaper to buy an apsc camera than it cost to buy a new full frame camera with more mega pixels for cropping.