Doesn't seem to be a section on just lenses. John have you thought about adding one? I am going to add a 400 mm hand holdable lens soon. I used and then sold my Nikon 80 - 400 lens because of focusing issues, {slow, erratic}. I missed several image opportunities with that lens because of mentioned issues.

I am looking at two directions:
1. Sigma 120 - 400 mm HSM stabilized for my Nikon D300.
2. Sony 70 - 400 SSM {sensor stablized} for my Sony A350.

This lens will be used for nature in general, with a premimum on wildlife. Both would be used some on landscape too, where access is restricted and far off shots must be taken.

The Sony is not scheduled for release for another week or so. Does anyone have and use the Sigma 120 - 400 lens? Lab testing seems to give a very good recommendation. However I put more stock in others hands on experiences. Anyone?