yes I get exactly the same colour spot.
If its taken on film then it sounds like a design problem with the tamron.
james
Bob Docherty wrote:
> 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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