My test result found the 21/2 is not bad wide open but never test it
wide open for night photo, it is expected to use tripod and stop down.
For night street snap the corner performance is not so important
unless you use it for astrophotography. The 21/3.5 has very bad close
focus performance, the corners are badly soft, the 21/2 perform much
better in this department but I will not use either for copy work.
C.H.Ling
"George M. Anderson" wrote:
>
> I only really tested it for night photography. I remember posting results
> to the list, but that was in the last millenium. The lens suffers badly
> from coma when wide open.
>
> George
>
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