As far as I can tell, there are no threads in the gallery about this lens. I don't think it's manufactured anymore but it's widely available on ebay. It's compatible with minolta cameras as well as the sony alpha cameras.
http://en.wikipedia.org/wiki/Minolta_AF ... m_f/4_lens
Ive been using it on my a200 for a few months, here are some samples.
The last image of the egret was a crop from a much larger picture. Yet still reasonably sharp. All of these were handheld.[url][/url]
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Canon 40D | Tokina 11-16 f2.8 | Canon 50mm f1.4
www.flickr.com/claycarey