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  1. #1

    Join Date
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    Please Help Identify "Type Y" Caltar Lens

    While browsing for some Sinar accessories at KEH.com, I caught sight of this little 240mm Caltar lens a few days ago. My thought was that it might be a Tessar that could cover 4x5? I currently carry a 250mm Fuji f6.7, which is quite a bit larger. (Though, not as large as most.) This lens stands about 2.25" high.

    Does anyone recognize this lens, a Type Y Caltar f6.8? I mistakenly through out my older Calumet catalogues years ago, so I can't look it up. Its dimensions are very similar to an old 240mm Tele-Xenar that I have. But focusing on a semi-distant object, it has a bellows draw of about 9.5". (Bellows draw is much less for the Tele-Xener.) So, it's not a tele.

    I've included some not very well executed photos. (I do better at architecture.)

    The coating is strong. I can see both strong blue dots and some strong yellow dots. At first, I thought that I could see some green and magenta color in the dots. I doubt it though; I think just blue and yellow. So, likely single-coated?

    It appears to cover 4x5 quite easily. Checking in the lens comparisons table, 240mm Tessar designs would have an image circle of about 270mm.

    If you can help me identify the lens type, I would sure appreciate it.
    Attached Thumbnails Attached Thumbnails B.jpg   A.jpg   C.jpg  
    Last edited by neil poulsen; 3-Apr-2022 at 21:03.

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