which is best? sigma or Tamron?
I am looking at getting a 70-300m lens for my sony a200 but the more i read the more conflicting are the reports. I was almost made up to buy the Tamron 70-300mm F4/5.6 DI LD Macro then read that the Sigma 70-300mm f/4-5.6 DG Macro was the better one.
But i have now read that there seems to be a problem with the Sigma ones with the gears stripping from the camera motors.
advice from anyone on this would be welcome also as to if I should pay extra and have the APO version? for a beginner would I notice the difference? or would it be a case of wanting to get the better version a little bit down the line and then having to buy whole new lens then instead of now?
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