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<blockquote data-quote="Felisek" data-source="post: 449778" data-attributes="member: 23887">I have a 1000-mm mirror lens, as described <a href="http://nikonites.com/telephoto/25443-my-old-new-lens.html?highlight=1000+mm#axzz3ZTiS9q5d" target="_blank">here</a>. It is not good. Image quality is poor, I managed to take a few pictures of the Moon, but this is all you can do with it. It is huge, heavy and cumbersome. Focus is a nightmare: the tiniest flick of the barrel throws you out of focus. To take a sharp-ish picture of the Moon I had to tweak the focus back and forth, keep shooting and hope that one of the pictures would be more-or-less OK. It is very wobbly on my carbon fibre tripod, even a slight breeze makes the image shake. You would need a heavy-duty tripod to keep it steady. I cannot imagine using it for wildlife.I don't recommend mirror lenses. You truly get what you pay for.(Caveat: mine is an old Soviet model, perhaps modern Optekas are better, though personally I don't believe it)</blockquote>

[QUOTE="Felisek, post: 449778, member: 23887"] I have a 1000-mm mirror lens, as described [URL="http://nikonites.com/telephoto/25443-my-old-new-lens.html?highlight=1000+mm#axzz3ZTiS9q5d"]here[/URL]. It is not good. Image quality is poor, I managed to take a few pictures of the Moon, but this is all you can do with it. It is huge, heavy and cumbersome. Focus is a nightmare: the tiniest flick of the barrel throws you out of focus. To take a sharp-ish picture of the Moon I had to tweak the focus back and forth, keep shooting and hope that one of the pictures would be more-or-less OK. It is very wobbly on my carbon fibre tripod, even a slight breeze makes the image shake. You would need a heavy-duty tripod to keep it steady. I cannot imagine using it for wildlife. I don't recommend mirror lenses. You truly get what you pay for. (Caveat: mine is an old Soviet model, perhaps modern Optekas are better, though personally I don't believe it) [/QUOTE]

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