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Old Jun 14, 2010, 5:49 PM   #1
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Default Opteka 500-1000mm

does anyone know if this lens is any good before I buy it Opteka 500-1000mm http://i1.lelong.com.my/UserImages/I...7/[email protected]

Andy
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Old Jun 14, 2010, 6:13 PM   #2
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I believe it's a T-Mount lens, which means that it doesn't AF or AE. It's a long refraction lens, and it's inexpensive, so it will be soft and have lots of chromatic aberration. And to turn the 500mm f/8.0 lens into a 1000mm lens, it comes with a 2X teleconverter which will add to the chromatic aberration and it will reduce the maximum aperture to f/16, which is where you'll probably start bumping into the diffraction limit of your camera.

You may get lucky, but I think you'll be disappointed.
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Old Jun 14, 2010, 6:14 PM   #3
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Don't do it! It's junk. Well, not TOTAL junk. You can use it as a door stop, paper weight, or a weapon. But, as a lens.... uh uh.
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Old Jun 14, 2010, 6:18 PM   #4
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thanks for the advise how I know why I posted it before buying

ok so what do I get looking for close ups of motor bike racing
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Old Jun 15, 2010, 6:04 AM   #5
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Take a look at the Sports & Action Photos and Transportation Forums to see what others are using for motorcycle races.

BTW, what camera do you have?
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Old Jun 15, 2010, 6:09 AM   #6
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After looking at your own bike pics, taken with a Nikon D3000 and a Tamron 70-300 (Di LD, I presume), I think you're actually doing fairly well with the gear you've got.
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Old Jun 15, 2010, 12:03 PM   #7
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Thanks mate
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