glass in Quantaray 2X AF Teleconverter. Thu, 08 Mar 2012 13:11:37 -0800. Teleconverters: Quantaray 2x vs. Sigma 2x. Fri, 12 Jan 2007 15:56:59 -0800. comparison ...
i had just tried this evening using my new 1.4 teleconverter with EOS cameras attached to my scope and couldn't get the camera to work except with the ...
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Oct 4, 1999 · With a perfect converter 2x you increase by 4 the surface of smallest blurring so if your lens is only quite good, you will just increase the ...
i have recently bought a canon eos xti dig camera. i enjoy taking action pics, but only as fun. i also got the ef 75-300mm f/4-5.6 III lens with it. my main ...