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[APML] Teleconverter advice



I'm going to be traveling to Mexico this June for the annular eclipse and to Australia in November for the total eclipse, and instead of bringing my Vixen 102-ED and GP mount I'd like to bring a more compact setup.  I have a Nikon 300/4 ED lens which is quite good and a Sigma 400/5.6 that I haven't been too impressed with.  I'm thinking about getting a TC-301 to use with the Nikon lens to get me to 600/8 for closeup eclipse shots.  I don't plan to do night sky work with it, but I'm wondering how well it would work for eclipse and daytime shots at f/8 or maybe stopped down to f/11.
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Alson Wong
Riverside Astronomical Society
  http://www.rivastro.org/
Visit my Web page at <http://home.earthlink.net/~alsonwong/index.htm>