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dp297
sage


Reged: 12/14/10

Nikon 180ED f2.8 new
      #6035900 - 08/20/13 06:45 AM

Has anyone used Nikon 180ED at f2.8 and f4 and compared its sharpness?
Perhaps in a narrowband setting?


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andysea
Pooh-Bah
*****

Reged: 09/03/10

Loc: Seattle, WA
Re: Nikon 180ED f2.8 new [Re: dp297]
      #6036571 - 08/20/13 01:53 PM

Here is a link to a writeup
http://www.astropix.com/HTML/I_ASTROP/EQ_TESTS/NIKON_180MM.HTM
I believe this is the one you are asking about.

Andy


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dp297
sage


Reged: 12/14/10

Re: Nikon 180ED f2.8 new [Re: andysea]
      #6036594 - 08/20/13 02:07 PM

Thanks Andy..of course I read this before I bought the lens.....
perhaps someone has a more direct experience about some issues at f2.8...curvature, chromatic aberration etc..


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WarrenS
Carpal Tunnel


Reged: 03/04/08

Loc: Orange County New York
Re: Nikon 180ED f2.8 [Re: dp297]
      #6036922 - 08/20/13 04:58 PM

Since you already have the lens, you should do some testing yourself. My experience, the lens is decent wide open, better stopped down. Depends on your tolerance too for optical defects.

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