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Thread: Bellow Distance of some of the 210mm Lenses

  1. #1
    Andrew "The RedSun"
    Join Date
    Aug 2012
    Location
    East Coast, USA
    Posts
    215

    Bellow Distance of some of the 210mm Lenses

    I have a Sinar 4x5 system and I just wonder which lens I should use for now. I'd like to use one with short bellow distance. The lenses are:
    Fujinon W 180/5.6
    Rodenstock 72 Sironar-S 210/5.6
    Schneider G-Claron 210/9
    Schneider Symmar-S 210/5.6

    Thx.

  2. #2

    Join Date
    May 2006
    Location
    grand rapids
    Posts
    3,844

    Re: Bellow Distance of some of the 210mm Lenses

    huh?
    the 180 is the shortest, but you know that.
    the sironar-s is the sharpest.
    use the g-claron
    send the sironar to me

  3. #3

    Join Date
    Sep 1998
    Location
    Buford, GA
    Posts
    13,047

    Re: Bellow Distance of some of the 210mm Lenses

    Flange focal lengths

    210mm G Claron = 205mm
    210mm Symmar-S = 200.9mm
    210mm Apo Sironar-S =202mm

    But! Something is wrong with your list. An Apo Sironar S covers 75 and an Apo Sironar-N covered 72 so you can not have what you listed.

    Additionally the 180mm being the shorter focal length will have the shortest FFL. For example. The 210mm Apo Sironar-S has a FFL of 202mm but the 180mm Apo Sironar-S had a FFL of 177mm.

    If you don't know what these numbers mean then this may help. The shorter the FFL the less extension is needed to reach infinity focus.

  4. #4
    Andrew "The RedSun"
    Join Date
    Aug 2012
    Location
    East Coast, USA
    Posts
    215

    Re: Bellow Distance of some of the 210mm Lenses

    You are right that the Sironar is the 72 N.

    I have the 4x5 setup, but have not used it much. I have the 210 Symmar-S on the camera, but I have to extend the bellow very far.

    I also have other lenses with shorter focal lengths. Of course they are for different uses.
    Thx.

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