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Thread: KJFK Spotting Saturday 1/5

  1. #31
    Senior Member Zee71's Avatar
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    William..........the 70-200mm with the 2x combo definitely knocks down the focusing speed, but it is faster when it comes to focusing then the 80-400mm. IQ is pretty close, but with the 2x teleconverter on the 70-200mm for optimal sharpness you need to shoot at f/11 or there about. So.....at a 400mm and f/8 on the 80-400mm versus 400mm and f/8 on the 70-200mm with the 2x teleconverter I feel that IQ will be slight better on the 80-400mm (but that's just my opinion). The 70-200mm lens is my work horse for spotting in and around JFK. Most of the time I have the 1.4x teleconverter attached to it.
    Mark
    Queens, NY

    My website: http://mbsphotography.smugmug.com
    My photos at: JetPhotos and ANet

  2. #32
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    Quote Originally Posted by Zee71 View Post
    William..........the 70-200mm with the 2x combo definitely knocks down the focusing speed, but it is faster when it comes to focusing then the 80-400mm. IQ is pretty close, but with the 2x teleconverter on the 70-200mm for optimal sharpness you need to shoot at f/11 or there about. So.....at a 400mm and f/8 on the 80-400mm versus 400mm and f/8 on the 70-200mm with the 2x teleconverter I feel that IQ will be slight better on the 80-400mm (but that's just my opinion). The 70-200mm lens is my work horse for spotting in and around JFK. Most of the time I have the 1.4x teleconverter attached to it.

    All valid arguments for switching to Canon.........hahahaha Just kidding Mark
    Steve Furst

    View my work @

    Furst Edition Photography
    JetPhotos.net

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