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Thread: Q: macro lens stacked with reverse prime

  1. #1
    Member archdevll's Avatar
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    Default Q: macro lens stacked with reverse prime

    does anyone knows the effective macro ratio stacking a 100mm macro(1:1) with a reverse prime 50mm f1.4?? is it just 2:1?

    is there any difference using just a regular 100mm vs a 100mm macro lens??

    should i stack with a raynox instead? if so, what's the effective ratio???



    thanks
    Last edited by archdevll; 22nd June 2015 at 01:53 PM.

  2. #2
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    Default Re: Q: macro lens stacked with reverse prime

    im not the best person to explain this but a proper 100mm macro is specifically made with a short/close minimum focusing difference. Everything else is more or less the same as the regular 100mm

    adding a raynox to a regular lens reduces the minimum focusing distance of the said lens a little bit.

    i might be wrong though
    give me a pen, and i'll give you my signature

  3. #3
    Senior Member shierwin's Avatar
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    Default Re: Q: macro lens stacked with reverse prime

    does anyone knows the effective macro ratio stacking a 100mm macro(1:1) with a reverse prime 50mm f1.4?? is it just 2:1?

    Magnification ratio for 2-lens mounting for your set 100mm/50mm = 2X
    (focal length of lens on body divided by focal length of reverse mount lens will give the magnification ratio}


    is there any difference using just a regular 100mm vs a 100mm macro lens??

    Design - macro lens has a shorter MFD

    should i stack with a raynox instead? if so, what's the effective ratio???

    Should be able to get the info from Raynox website

  4. #4
    Member archdevll's Avatar
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    Default Re: Q: macro lens stacked with reverse prime

    Quote Originally Posted by incubus View Post
    im not the best person to explain this but a proper 100mm macro is specifically made with a short/close minimum focusing difference. Everything else is more or less the same as the regular 100mm

    adding a raynox to a regular lens reduces the minimum focusing distance of the said lens a little bit.

    i might be wrong though
    Quote Originally Posted by shierwin View Post
    is there any difference using just a regular 100mm vs a 100mm macro lens??

    Design - macro lens has a shorter MFD
    hmm so to say 100mm macro stacked with a reverse mount has no difference when using a regular 100mm lens huh???

  5. #5
    Senior Member shierwin's Avatar
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    Default Re: Q: macro lens stacked with reverse prime

    Quote Originally Posted by archdevll View Post
    hmm so to say 100mm macro stacked with a reverse mount has no difference when using a regular 100mm lens huh???
    The formula is based on focal length of the lenses in use
    So 100mm macro+reverse lens give the same mag ratio as 100mm+same reverse lens

  6. #6
    Member archdevll's Avatar
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    Default Re: Q: macro lens stacked with reverse prime

    Quote Originally Posted by shierwin View Post
    The formula is based on focal length of the lenses in use
    So 100mm macro+reverse lens give the same mag ratio as 100mm+same reverse lens
    awww i was hoping it can achieve better result
    Thanks anyway

  7. #7
    Senior Member shierwin's Avatar
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    Default Re: Q: macro lens stacked with reverse prime

    Just reverse mount a prime or zoom lens onto the body, the magnification will be much higher and the setup is lighter. Note that the shorter the focal length in use, the higher the magnification.

    Samples in posts from a fellow Cser in the links below:

    http://www.clubsnap.com/forums/showthread.php?t=389402

    http://www.clubsnap.com/forums/showthread.php?t=389715

    http://www.clubsnap.com/forums/showthread.php?t=390063

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