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Thread: Is the Rodenstock Sironar N MC the same as the N APO?

  1. #1

    Is the Rodenstock Sironar N MC the same as the N APO?

    Friends, I have a bead on a 180mm but need to know if these are essentially the same lens with a different designation, all for price comparison reasons. The N MC is in an all black copal (no metal ring). What would a fair price be for the N MC in like new condition, and what does a "42 mount" mean? I am new to this format. Would this mount work with my Toyo 45A? Much obliged.
    David

  2. #2
    naturephoto1's Avatar
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    Re: Is the Rodenstock Sironar N MC the same as the N APO?

    David,

    As far as I know the Sironar N MC was the same as the Apo Sironar N MC. It was relabled as I recall when Rodenstock introduced the Apo Sironar S line of lenses. I believe that the Sironar N and the Apo Sironar N lenses use Flint glass while the Apo Sironar S lens uses ED glass.

    I'm sure that Bob Salomon of HP Marketing can provide more information.

    The 42mm indicates the opening size for mounting the lens onto a lens board. This is the opening size for a Copal 1 Shutter.

    Rich
    Richard A. Nelridge

    http://www.nelridge.com

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    Re: Is the Rodenstock Sironar N MC the same as the N APO?

    Bob's usual response to this question is that the design was carried over from the Sironar-N MC to the Apo-Sironar-N, but that newer samples of the lens benefit from refinements in the manufacturing process.

    Even allowing for that, the Sironar-N MC lenses are very fine lenses.

    "42 mount" means you must be looking at KEH. The $399 that they're asking for the 180 in "LN-" (not "LN") condition is a reasonable price for clean sample of that lens being sold by a dealer. Conceivably you could find one for somewhat less from a private seller, though the 180's are less common than the 150's and the 210's and you might have to wait a while if you must have that focal length.

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    Re: Is the Rodenstock Sironar N MC the same as the N APO?

    So the N came before the S ?

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    Re: Is the Rodenstock Sironar N MC the same as the N APO?

    Yes.

  6. #6

    Re: Is the Rodenstock Sironar N MC the same as the N APO?

    Thanks fot the info. And Oren, I guess there are no secrets in the world of LF lenses. So is the "42" the size of the hole in the board? Just a guess. Thanks. David

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    naturephoto1's Avatar
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    Re: Is the Rodenstock Sironar N MC the same as the N APO?

    David,

    The 42 is for 42mm size hole of the lens board to mount the #1 Copal Shutter.

    Rich
    Richard A. Nelridge

    http://www.nelridge.com

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