Talk:Tele extender

Merging with Extension tube
I really don't know that much about optics, but I do know that extension tubes and tele extenders both add to the focal length, instead of multiplying it. When I wrote this article, I did not know about the article on extension tubes. Are they the same thing? If so, the article should be merged. --The High Fin Sperm Whale (talk) 03:08, 12 November 2009 (UTC)