Stay at home
- Aug 16, 2012
The bird shooters regularly use the 2xTC on the 200-600mm, and it is very sharp at 1200mm. Were you using the latest 2xTC and if so on which lens as the lens used can be important? There is copy variation with TCs that I have seen.I found the Sony 1.4x TC to be comparable to the Canon version III, which is to say excellent. Both were noticeably better than the Sigma TC. But on the 2x versions, the Sony was slightly worse than the Canon, and both degraded quality noticeably. When shooting Canon, I'd occasionally (when reach limited) use the 2x. I learned not to use the Sony one at all, as image quality would be best with the 1.4x and cropping.
Of course, that's just my copies of them.