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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