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Thread: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

  1. #1
    Founder QT Luong's Avatar
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    Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    The 2nd edition of David Karp's Introduction to Lenses for Large Format Cameras has been posted. All constructive comments welcome here.

  2. #2
    Greg Lockrey's Avatar
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    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    Excellent....4.0! I have the page bookmarked for future reference and links. Well done David, thanks.
    Greg Lockrey

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  3. #3
    Jack Flesher's Avatar
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    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    Great article!

    My only comment is I would refer to short lenses as "short" just like you did for long lenses. I find newbies often get confused with the term "wideangle" as it is used in 35mm and medium format, versus the LF lens' stated angle of field. I would also probably then add a paragraph on lens angle of field and how it corresponds to image circle to further clarify the distinction.

    Cheers,
    Jack Flesher

    www.getdpi.com

  4. #4

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    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    I second "good article"
    A couple of minor issues:
    The hole in the lensboard is sized for the shutter, not also the rear element.
    A 300mm telephoto needs about 200mm bellows, not 270mm.
    Jim

  5. #5

    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    Nice article. I have noticed a few Congo lenses labelled as Yamasaki Optical. Perhaps that might be something to add onto the article.

    Ciao!

    Gordon Moat
    A G Studio

  6. #6
    Dave Karp
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    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    Thanks for the comments. I will track this thread in the future if there is ever a third edition I will take them into account.

  7. #7
    All metric sizes to 24x30 Ole Tjugen's Avatar
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    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    Another "niggle":

    The classic convertible lens is not the "Bausch & Lomb Protar", but the "Zeiss Protar Serie VII, also produced under license by B&L, Ross, and others".

    Apart from that, well done indeed!

  8. #8

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    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    Nice!

  9. #9
    Eric Woodbury
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    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    Nice article. Keep up the good work.

    Edits: The pic of the "72mm" lens is really a 110mm lens. And, Rodenstock also discontinued the Apo Sironar W lenses, of which the 150mm is a must lens for 5x7.

  10. #10

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    Re: Revised article by David Karp: Introduction to Lenses for Large Format Cameras

    Nice read for me. Thanks.

    A question, does any LF shutter has a self-timer? and also, you didn't mention polaroid shutter in the article.

    Alex W.

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