On the Tanron 90/2.5 - yes, it pretty much is.
--
Piers
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of John Hermanson
Sent: 18 February 2008 14:50
To: olympus@xxxxxxxxxx
Subject: [OM] Re: (OM) E-1 with Zuiko 100/2
Or could be a reflection off the (flat) rear element. By any chance IS the
rear element flat?
___________________________________
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743
631-424-2121 | Olympus OM Service since 1977 http://www.zuiko.com |
omtech1 AT verizon.net
Moose wrote:
> Wayne Harridge wrote:
>
>>This sounds a bit like the problem I have had with the Tamron 90/2.5
>>on digital.
>>
>
> Wow, that's quite strong. You didn't have a filter on the lens,
> perchance? I've heard that can cause strong reflection spots.
>
> Do you have a filter on your 24-40, Brian? I had assumed from what you
> said that the problem was on film, but now am not sure.
>
> Moose
>
>>If you get a chance try shooting a plain wall at various apertures and
>>focal lengths to see what happens with the round patch. It could be
>>related to light reflecting off the sensor. With my 90/2.5 it is
>>seemed to become apparent at about f11. Check the following link for some
examples:
>>
>>http://lrh.structuregraphs.com/test/tamron_90_re_reflect.htm
>
>
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