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  1. #11

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    Quote Originally Posted by NRoberts View Post
    Canon's extenders are the best there are, but they only work with L series telephotos of 135mm and above, and most L series tele zooms except the 70-300 L IS. So basically they're no help to you. Cheaper teleconverters are not as good optically, so won't give you a great result, particularly if you pair them with cheaper zooms - the quality really does degrade. As a rule of thumb, always use the lowest-power extender/converter you can - i.e. a 1.4x for best quality.
    i would say its not to bad using this Sigma lens with the 2x converter took this at my local airfield
    but your right Canon is the best but until i win the lotto this one will have to do

    http://www.whatdigitalcamera.com/gal...imageuser=2908

  2. #12

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    Quote Originally Posted by NRoberts View Post
    Canon's extenders are the best there are, but they only work with L series telephotos of 135mm and above, and most L series tele zooms except the 70-300 L IS. So basically they're no help to you. Cheaper teleconverters are not as good optically, so won't give you a great result, particularly if you pair them with cheaper zooms - the quality really does degrade. As a rule of thumb, always use the lowest-power extender/converter you can - i.e. a 1.4x for best quality.
    Thanks for this, really appreciate the info.

    Quote Originally Posted by Blitz Photography & Prod View Post
    i would say its not to bad using this Sigma lens with the 2x converter took this at my local airfield
    but your right Canon is the best but until i win the lotto this one will have to do

    http://www.whatdigitalcamera.com/gal...imageuser=2908
    Nice photo!

  3. #13

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    thanks Dilinja
    thought i would show you what the qualities like using it

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