Question about Teleconverter

Discussion in 'Nikon Cameras' started by ChrisGio74, Apr 24, 2019.

  1. ac12

    ac12 Been spending a lot of time on here!

    Dec 5, 2017
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    Compute what your max aperture would be with the TC on (I think about f/9), then set the lens to that aperture and set the camera to preview/stop down,
    • Then see if the camera will AF at that aperture.
    • If not, see if you can manually focus the lens.
    If the wildlife will be in shade, you NEED to test the AF in shade as well as full sun.

    If you cannot AF nor manually focus, problem solved, you cannot use that combination.

    If you are reaching out that far, you may consider switching from a LONG zoom to a small astronomical telescope that can be used on a tripod, like a Celestron.

  2. greybeard

    greybeard Been spending a lot of time on here!

    Dec 30, 2011
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    The Tamron 150-600 is very picky about tele-converters. I have one and my Kenco 1.4 won't autofocus and my Nikon won't fit. So as far as the 150-600 you are limited to the Tamron converter. Tele-converters work well with high quality primes like a Nikon 300mm f/4 and your 90mm Macro. But with a lens like the Tamron 18-400? Probably not worth the trouble.

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