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70-300 is L lens, which Extender?

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    #1

    70-300 is L lens, which Extender?

    Have I got this right?

    My Canon 70-300 F/4-5.6 is L Lens would not AF with either of the Canon Extenders fitted but may work on MF.

    A Kenco Teleplus Pro 300 DGX 1.4 may work on AF depending on the light.

    Would the Kenco x2 be worth considering?

    woodshaper
    Think WHY, BEFORE you TRY!
    __________________________________________________ _____________________________________________

    550D, 40D, EF 24-105 IS, 70-300 IS L, EF 100 F2.8, EF 50mm 1.8, SIGMA 10-20/17-70, KENKO X1.4 EXTENDER, MANFROTTO 190XPROB, 496 HEAD, SPEEDLITE 430 EX
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    #2
    Re: 70-300 is L lens, which Extender?

    The 70-300L does not work with the Canon Extenders. Physical damage may occur I gather.

    It might work with third party teleconverters, such as the Kenko.

    But you'd need to see results from using a 2x before parting with your hard earned.

    Comment

      #3
      Re: 70-300 is L lens, which Extender?

      It would only AF with the 1.4 if you have a 1Dx
      ef-r

      Comment

        #4
        Re: 70-300 is L lens, which Extender?

        1 dx?
        Think WHY, BEFORE you TRY!
        __________________________________________________ _____________________________________________

        550D, 40D, EF 24-105 IS, 70-300 IS L, EF 100 F2.8, EF 50mm 1.8, SIGMA 10-20/17-70, KENKO X1.4 EXTENDER, MANFROTTO 190XPROB, 496 HEAD, SPEEDLITE 430 EX

        Comment

          #5
          Re: 70-300 is L lens, which Extender?

          1d/1d2/1d2n/1d3/1d4
          1ds/1ds2/1ds3

          They are the only cameras to AF at f8
          ef-r

          Comment

            #6
            Re: 70-300 is L lens, which Extender?

            Having purchased this Lens recently, I too asked the same question. A kind soul on another forum gave me this quote:

            "Note that the Canon EF 70-300mm f/4-5.6 L IS USM Lens is not compatible with Canon's extenders. The Canon extenders do not physically fit into the back of the 70-300 L - there is not enough clearance for the extender to insert behind the rear element. This is the only Canon L zoom lens with a widest focal length of 70mm or longer that is not compatible with Canon extenders (as of review time). "

            Here is the full review: Canon EF 70-300mm f/4-5.6 L IS USM Lens Review

            Having blown all my pocket money this year it may be next year before I can get the Kenko 1.4x which I am told will AF to a point. I do not know about the 2x version.

            Here is another review of the Lens (EF 70-300 f/4-5.6L IS) which is encouraging but more of a general assesment if you are interested. My experience of my Lens so far has been very pleasing.
            Canon 6D & 7D | Light Room + CS6 |
            EF 70-300L | EF 100 Macro | EF 24-105L | EF17-40L | Canon EF 50mm

            Comment

              #7
              Re: 70-300 is L lens, which Extender?

              Thanks jonesgi, will take a look at them,.

              It really is a great lens, spent most of my money for this year on a used 40D after discovering that my 550D's fps limited wild bird action shots!
              Think WHY, BEFORE you TRY!
              __________________________________________________ _____________________________________________

              550D, 40D, EF 24-105 IS, 70-300 IS L, EF 100 F2.8, EF 50mm 1.8, SIGMA 10-20/17-70, KENKO X1.4 EXTENDER, MANFROTTO 190XPROB, 496 HEAD, SPEEDLITE 430 EX

              Comment

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