
Originally Posted by
Dick Collins
I'm new to this forum and I've noticed that most of you are using Nikons or Canons. I've been a Minolta now Sony user for quite a while and have accumulated too much to switch. I have both a Sony A700 and the new A580, both of which I love. I just updated my Tamron 200 to 400 for a new 150 to 500 Sigma. I used it this weekend to do some distant ducks (probably a tenth of the screen). It was a pretty dreary day and I was shooting at ISO 800. I was disappointed with the results as far as sharpness goes. I'm hoping that it has to do with very flat lighting and too small of a subject. Is anybody using this lens? I won't be able to get out this weekend to test it but I'd love to hear your comments. Thanks