Thx for posting! When I use 16mm I shoot mostly at f11, at which point a bit of diffraction must have set in; but it allows for reasonably sharp foreground corners and "100%" DOF. Maybe I could back off to f8, with such short focal length.
Kirk
Thanks Kirk.
To my aging eyes it looks like this for 16 mm.
The major stepup in sharpness is from f/4 to f/5.6.
I use f/5.6 a lot if I need a fairly fast shutter speed.
The lens' performance seems to peak at f/8.
That's what I use if neither fast shutter speed nor large DOF is important.
At f/11 diffraction seems to have already set in, ever so slightly.
At f/16 a bit more.
But depending on how much DOF one needs, I use both those apertures.
At f/22 sharpness has fallen off a cliff, so I never use that - except for testing! :grin:
BTW, having lived in Berkeley I enjoy your B&W images.
Some of those places look familiar.