Re: Nikon Teleconverters

Discussion in 'Digital Photography' started by Rob, Dec 9, 2012.

  1. Rob

    Rob Guest

    On 9/12/2012 4:20 PM, Floyd L. Davidson wrote:
    > Eric Stevens <> wrote:
    >> I seem to recall that the 1.4 times was judged not too bad and so to
    >> was the 1.7. However the 2 times was regarded held to visibly degrade
    >> the image for pixel peepers. Am I correct.

    > At a minimum, each TC magnifies lens aberrations by the
    > same amount it increases the size of the image. Hence
    > you can expect any 2X TC to degrade the image more than
    > would a 1.4X TC on the same lens.
    > Just as true, the more aberrations any given lens has
    > the more they will be visible when using a TC of any
    > given magnification.
    > All that said, Nikon makes TC's that are optically as
    > good as any. For the 1.4X that is unlikely to make any
    > difference, and that may also be true when comparing to
    > other optically good TC's (Kenko's 2X PRO DGX is
    > virtually as good).
    > The big difference is not optical quality, but the
    > quality of build and the functionality. Nikon's
    > TC20EIII is built significantly stronger than the Kenko
    > 2X; however, the Nikon TC will not mount or work with
    > AF-D lenses that require the on camera focus motor,
    > while the Kenko will.
    >> I am considering using one on my 70-200 f/2.8 zoom. Does anyone here
    >> have any experience with any of these?

    > If you have the 70-200mm f/2.8 VRII, either the Kenko or
    > the Nikon TC's are all great (given that Nikon has a
    > better build quality).
    > I've not personally used the older 70-200mm f/2.8 VR
    > lens and cannot vouch for how well it works with a TC.
    > But on a DX body you can be almost certain that even the
    > 2X TC's will provide acceptable results.

    > And there is no comparison to the mirror lens you
    > mentioned in a later post. It will sell cheap for a
    > very good reason.

    Have to agree with that, having borrowed a 500 mirror back in the good
    old film days - didn't exactly get any good images, even with it bolted
    down on a tripod.
    Rob, Dec 9, 2012
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