James,
I think I posted this before. This is a film shot taken with the Tamron
90mm 2.5, it also suffers from the "blue spot" effect.
http://www.bellsouthpwp.net/l/o/lostkase/snub.jpg
Bob
----- Original Message -----
From: "james king" <jking@xxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Monday, February 18, 2008 5:09 PM
Subject: [OM] Re: (OM) E-1 with Zuiko 100/2
>
> Moose wrote:
>> Piers Hemy wrote:
>>
>>> On the Tanron 90/2.5 - yes, it pretty much is.
>>>
> I use a tamron 90/2.5 on my canon 5d and I get a progressively larger
> blue spot in the centre of the frame as the app gets smaller. Its not
> flare in the conventional sense. I can shoot with an expodisc infront of
> the lens and still get the spot. At f16 lts visible by f32 its a fairly
> large bright blob. Not had this with any other lens on the 5d (tamron
> 80-200, 35-105/2.8 zuiko 21/3.5, 24/2, 24 shift, 28/2 35/2 35 shift
> 50/1.8 35-70/3.5
> .Since I have not had the effect using film I guess it is reflection due
> to the sensor. Probably I will buy a new Tamron 90/2.8 at some point.
> James
>
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