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10-21-2008, 10:33 PM   #1
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Join Date: Dec 2007
Location: Queensland
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2x teleconverter v 2x screw-on telephoto


I currently have a standard 2x teleconverter, but of course the diminished aperture range and loss of lens/camera function is an inconvenience.

I'm considering the purchase of a front-mounted screw-on 2x telephoto similar to the one shown here.

So tell me, what are the pros and cons of these things compared to teleconverters?

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2x, 2x teleconverter, k-mount, pentax lens, screw-on, slr lens, teleconverter, telephoto
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