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I've used a Nikon 2x TC-300 teleconverter with great success. The optics are FAR better than an average barlow, so unless you have top-end TeleVue or something, a decent (Nikon, Canon, et al) TC is a good choice.
Sharpness? How's this...
Last edited by Omaroo; 06-04-2009 at 07:52 AM.
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