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#1
September 5th 09, 02:53 AM
posted to rec.photo.equipment.35mm,rec.photo.digital.slr-systems
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Tamron SP 70-210mm F/3.5 19AH: won't focus at infinity
"TJ" wrote in message ... Advice please I have a Tamron SP 70-210mm F/3.5 Model 19AH: with the Adaptall 2 for Canon EOS on a 450D body. It is wonderfully sharp - but won't focus sharply on infinity - like the moon. What to do? Thanks TJ Someone should make a minus diopter filter, just like my eyeglasses.....I am slightly nearsighted.....My eyes won't focus on the moon either. (infinity) so my glasses are reducing lenses. If you can find a filter which is a reducing (concave) lens, then it would fix your problem.....It would probably only need to be like -.5 diopters or less....... 
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