But I managed to get one clear (although somewhat windy) day recently so I took the opportunity to go outside and grab a few test shots with the Sigma 50-500mm f4-6.3 EX APO.
I set the lens up on my sturdiest tripod - a Slik Pro700DX with Manfrotto three-way 141RC head, turned 'Steady Shot' off (recommended whenever the camera is tripod mounted), and attached a Sony A100 body to the lens. This set up definitely felt solid enough, even with the bit of wind that was blowing outside at the time.
|Sigma 50-500mm at 50mm @ f8, Sony A100|
|Sigma 50-500mm at 200mm @ f8|
|Sigma 50-500mm at 300mm @ f8|
It was more of the same at 400mm, so let's just skip to the chase and have a look at the 500mm shot, shall we?
|Sigma 50-500mm at 500mm @ f8|
This was just a very quick focal length test, to get the feeling for the actual 'reach' of this lens. For a more in-the-field test I plan on taking the lens and a monopod down to a local lagoon and chase some birds around. Then I'll really get to see what this lens is capable of in a real-world shooting scenario.