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Re: [OM] 180mm/f2.8 Zuiko dog

Subject: Re: [OM] 180mm/f2.8 Zuiko dog
From: Tomoko Yamamoto <tomokoy@xxxxxxxxx>
Date: Fri, 06 Feb 1998 11:19:57 -0800
At 10:19 AM 2/6/98 -0500, Rob Roy wrote:
>Last week a friend showed me his newly acquired 180mm/f2.8 Zuiko which he
>had purchased for just over $300 CDN (~$200US).  From the outside the lens
>was like new.  I was envious that I hadn't been in the camera store first.
>
>Last night he showed me some astrophotos he had taken before he took the
>lens back to the store.  I have never seen anything like them.  The stars
>were football-shaped (astigmatism) and the brighter ones had blue halos
>around them (chromatic aberration).  Any ideas as to what is going on?  I
>have never even heard of such a bad lens!?
>
The 180mm/2.8 new has a price tag of $999.95 at B&H.  

One possibility is that the lens at such a low price compared to new must
have something wrong.

The other possibility is that photographs were overexposed?  I am not an
expert on astrophotography, but I have had a few moon shots which came back
with a football shape, which indicate too-long exposures.

 
Tomoko Yamamoto
Photographer, Composer, Soprano
mailto:tomokoy@xxxxxxxxx
http://www.charm.net/~tomokoy/
-All the photos (except panorama) with OM's-
http://ep.com/ep/csp.html?csp=1130
-Olympus Equipment Classifieds-

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