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09-11-2010, 03:57 PM   #1
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Any info on this lens

Rokinon 500mm f/6.3 Multi-Coated ED Mirror Lens for Pentax
The price is very nice. I wonder if the quality of this lens is any good.
Soon I will be taking a trip to Costa Rica, I have a Pentax K10D and I need a good 500mm or more lens to take pictures of birds and other animals.
What do you guys recommend?
Thank you very much

09-11-2010, 04:26 PM   #2
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Here is the lens entry in our 3rd-party Pentax lens database: Rokinon / Kenko / Bower / Samyang 500mm F/6.3 DX Lens Reviews - Pentax Third-Party Lens Review Database

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09-11-2010, 04:45 PM   #3
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In limited testing I've found my copy no better than my DA 55-300mm enlarged (with no other post-processing applied.)
09-11-2010, 07:10 PM   #4
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Also see the Mirror Lens Club thread in this forum for tons of samples and discussion of that and other mirror lenses.

I'd expect with appropriate PP it might barely beat a crop from the 55-300, but probably not by enough to be worth lugging it around on a trip unless the whole point is wildlife photography - and even then, maybe, maybe not.

09-11-2010, 09:40 PM   #5
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Thank you n/m

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