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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 08 Feb 2006 (Wednesday) 10:49
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2x teleconverter with the 300f/4 L IS?

 
judyg
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Joined May 2005
     
Feb 08, 2006 10:49 |  #1

I was wondering how this combination does, as far as sharpness of image and ease of focus. Does anyone have any experience with this combination and/or sample pics to post?

(And yes... I read the t-con sticky thread, it doesn't have much about this particular combo.)

Thanks.




  
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LightRules
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Feb 08, 2006 10:56 |  #2

On a 1.6 body, you lose AF (even with pins taped). It's quite the frustrating experience really trying to lock focus. I wouldn't really recommend a 2xTC, especially as focusing manually is very hard at this kind of FL.

See my test here http://www.pbase.com …o/image/5329735​1/original (external link)




  
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pturton
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Location: Region Niagara, Ontario, Canada
     
Feb 08, 2006 15:23 |  #3

Judy,
With my 10D and good light, the Canon 2x TC works reasonably well if stopped down to f/11. Ability to focus with the original Canon focus screen is dependant on the operater's eyes. AF will not work with 1.6 bodies. The f/8 maximum aperture limits picture taking to bright sunny days for most subjects.

I seldom use my EF 2x but I do not hesitate to use my EF 1.4x.

http://www.iaw.com/~pt​urton/dpr/400vs300.jpg (external link)

Paul
http://www.photo.net/p​hotos/pturton (external link)




  
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2x teleconverter with the 300f/4 L IS?
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
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