How big of a difference does the minimum focus distance make? Up close
and wide open with the 28mm f2 AI.
Up close and wide open with the 28mm f/2.8 AIS.
Sony Zeiss 24-70mm f/4 FE at 28mm f/4 and minimum focus. At 1/200 I
believe there is some motion blur going on here, but even on a tripod
the Nikkor 28mm 2.8 AIS is sharper at mfd and f4.
It has a unique look wide open, and a good copy is sharp at f2, but
there is a lot of sample variation. I've seen one that was mediocre
wide open and two that were terrible. There is some CA wide open too,
this is with auto correction for it on in photoshop. The nose texture
and hair detail is impressive.
With the sun just out of the frame flare control is impressive, shot
wide open again.
Word
on the street says that the Nikkor 28mm f/2 AI is sharper stopped down
for distant subjects while the Nikkor 28mm f/2.8 AI-S is better wide
open and on closer objects.
Conclusion?
With my two copies they appear very similar in the center. Even with
10x magnified focusing it's hard to tell the two apart, more comes down
to focusing ability. The 28mm f/2.8 AI-S is certainly better at the
edges, up close and far away unlike popular belief. At least for my
copies. The smaller size, lighter weight and
closer minimum focus distance all stack up in its favor, although for
subject separation
on objects a few feet away the 28mm f/2 has the one stop advantage.
Nikon 28mm f/2.8 Ai-S at
f/8