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Thread: teleplus 2x teleconverter

  1. #1
    Senior Member poohbear's Avatar
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    Default teleplus 2x teleconverter

    anyone wanna comment on the above ?? thinking of getting one ... will it work well with nikon D70

  2. #2

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    which one?

    MC4 / MC7 / Pro ????? Which one?

  3. #3
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    2x generally don't work too well and you lose two stops of light. if you want a tele, get a 1.4x one (and maybe crop with software).

  4. #4

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    On top of that, your pictures will also turn out softer.

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    Senior Member poohbear's Avatar
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    teleplus pro 300

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    and lose AF if your lens has an aperture smaller than F2.8 unless the extender does not report the correct aperture to D70.
    -Express yourself not in words-
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    What lens are you going to use it on? Wide-normal focal length lenses don't usually cope well with a teleconvertor as manufacturers normally optimise the teleconvertor for the longer focal lengths.

    The Teleplus Pro 300 series are excellent teleconvertors however, and a good option for people wanting to extend the reach of their non-AFS lenses (nikon's own teleconvertors can only be mounted on AFS lenses.)

  8. #8

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    OT: is it true you will lose auto focus if use Nikon TC 17 E II ??

  9. #9
    vince123123
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    I was always wondering this abt teleconvertors. is it better to use a teleconvertor or to simply crop with software? teleconvertor degrades image quality but you crop software maybe not enuff pixels left to print....is there any guide to follow as to when to use which?

    or simply use a compromise like mpenza's suggestion? one up one down

    Quote Originally Posted by mpenza
    2x generally don't work too well and you lose two stops of light. if you want a tele, get a 1.4x one (and maybe crop with software).

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    Using the Kenko Pro300 1.4x, an F2.8 lens gives me an aperture reading of F2.8. Becos the metering is TTL, so no problem with exposure.

    If cropping were to be better than say a 1.4x TC, then no one would have been using TC, and no one would be selling them either, especially with a 1 stop penalty too.

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    Quote Originally Posted by smallaperture
    Using the Kenko Pro300 1.4x, an F2.8 lens gives me an aperture reading of F2.8. Becos the metering is TTL, so no problem with exposure.

    If cropping were to be better than say a 1.4x TC, then no one would have been using TC, and no one would be selling them either, especially with a 1 stop penalty too.
    Only Nikon's own TCs report back the correct effective aperture, ie f2.8 becomes f4 with a TC14E. All other 3rd party TC's cannot interface properly with Nikon lenses to enable the camera to read the effective aperture. This isn't a problem however as TTL metering solves everything.

    And whether you lose AF depends on the lens and camera you are using as well as the subject you are shooting. Rough guide is f8 to maintain AF. So a f4 lens + 2X TC means you can still depend on marginal AF.

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    Quote Originally Posted by justarius
    And whether you lose AF depends on the lens and camera you are using as well as the subject you are shooting. Rough guide is f8 to maintain AF. So a f4 lens + 2X TC means you can still depend on marginal AF.
    Marginal AF will also mean painfully slow AF to the extent of frustration, and often missing a great shot and end up the lens hunting very often, draining the battery.

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