zurnra Posted June 27, 2008 Share Posted June 27, 2008 I have a Canon EOS Digital Rebel with a Canon Zoom Lens EF 100-300mm 1:4.5-5.6 Ultrasonic. I am looking for a tel extender for this combination. Is there one compatible with this system? Link to comment Share on other sites More sharing options...
tommyinca Posted June 27, 2008 Share Posted June 27, 2008 The Tamron or Kenko version will fit mechanically. This lens max out its resolution at 300/5.6. You may be better off and save some money via your feet or computer and gain 1stop. Link to comment Share on other sites More sharing options...
rainer_t Posted June 27, 2008 Share Posted June 27, 2008 The Kenko 1.5x Teleplus MC DG will work, however, you lose reliable AF. (AF sometimes works, sometimes dont). The resulting imagequality isn't better than an upsized 300mm image, so its probably not worth it. Link to comment Share on other sites More sharing options...
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