I'm toying with getting an affordable mirror lens. The majority of Russian derivatives (Samyang, Phoenix, Opteka, etc.) are cheap and their photo quality generally accepted as very poor :thumbsd: . And I can't afford the best and only AF one, ie., Minolta AF 500mm f8, which normally goes for US$400-500 (used) on ebay.
So imagine my excitement when I came across a Sigma 600mm f8 mirror lens. It is NOT AF but unlike the cheapies, it's mount is fixed (not M42) and it has a full metal body and weighs 830g. Priced less than US$300 (excl. shipping) on ebay, like this one.
http://cgi.ebay.com.au/Sigma-600mm-Mirror-Lens-Minolta-Maxxum-7-9-70-5D-7D-NEW_W0QQitemZ7589985257QQcategoryZ3342QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Reviews from bird watching forums seemed to give this lens the thumbs up for sharpness. It's probably discontinued as it's not present on the Sigma website.
Has anyone play with this lens before? Any thoughts?
So imagine my excitement when I came across a Sigma 600mm f8 mirror lens. It is NOT AF but unlike the cheapies, it's mount is fixed (not M42) and it has a full metal body and weighs 830g. Priced less than US$300 (excl. shipping) on ebay, like this one.
http://cgi.ebay.com.au/Sigma-600mm-Mirror-Lens-Minolta-Maxxum-7-9-70-5D-7D-NEW_W0QQitemZ7589985257QQcategoryZ3342QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Reviews from bird watching forums seemed to give this lens the thumbs up for sharpness. It's probably discontinued as it's not present on the Sigma website.
Has anyone play with this lens before? Any thoughts?