comments on SIGMA 20-135 2.8-4.5

[Ruben Silva]

Hi I am considering a midrange zoom, and evaluating the SIGMA 24-135 2.8-4.5

and also evaluating the Nikkor 28-105 3.5-4.5

I would like to have your oppinions on lens quality: distorsion,

barrel/pincusion/ abberations/ sharpness. Which one do your use or recommend.

Also similar lenses. Thanks

[jorgen_udvang]

I had the same kind of choice a year ago, and in the end I bought the Tamron 24-135mm 3.5-5.6. Sharpness and other people's experiences was what made my decission. I'm very happy with it, but it needs to be stopped down a bit beyond 80-90mm.