I have talked with Carlos Santisteban about this issue. I will answer this
for him, until he hangs over here and make the corrections my answer may
deserve.
Carlos judges the 200/4 very up to astrophotography requirements mainly
because of its like of coma (comma - sp?) aberration.
Stars will show as a bright point instead of as a bright triangle, like when
using the 300/4.5
HTH,
Fernando.
on 16/09/2005 11:30, Chuck Norcutt at chucknorcutt@xxxxxxxxxxx, wrote:
> The only other
> question is whether the B/B- grades that Gary assigned to the 200/4 when
> wide open is good enough for the the demands of star images. I don't
> know the answer.
Jim Day wrote:
>
>> Hi Chuck,
>> I'm wondering what your opinion is of the zuiko 200/4 lens in general, and
>> for astrophotography. I'm thinking about purchasing one. On the lens test
>> site, it looks like it is ok but not necessarily anything to write home
>> about. I would appreciate your thoughts. Jim
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