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Opteka 2X TeleConverter for the Opteka 500mm/800mm/650-1300mm Lenses

List Price: $49.95
Your Price: $29.95
You Save: $20.00 (40 %)
Item Number: OPT T-Mount Extender

The Opteka 2x High Definition Tele-Converter is for use with T-Mount manual focus lenses. It will multiply the focal length of your existing lens by 2x, and will cut back the amount of light by two f/stops.

For example, using a 2x tele-converter with a 500mm lens will effectively increase the focal length to 1000mm. A lens set to f/2.8 will now be f/5.6.
 

Focus Modes Manual Focus
Diameter 1.65 inches (42mm)
Length 2 inches (50mm)
Weight 2.8 oz. (80g)
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