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Thread: please post your petzval shots

  1. #341

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    Re: please post your petzval shots

    Thanks, Jonathan. I'm losing interest in swirls, but am instead liking the other qualities of petzvals more, even the odd curved plane of focus.

    --Leigh.

  2. #342
    Jonathan K. jcoldslabs's Avatar
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    Re: please post your petzval shots

    I think the swirls are fun, but they don't make a photograph what it is--or shouldn't. I am liking my Petzvals for the same reason you mention, although my example above is guilty or peripheral swirling. Sometimes it can't be helped. I hope to do some portraits sometime soon with mine, but I am not very aggressive when it comes to soliciting models, even if they are friends. It just seems too forward or demanding, especially when I am not yet convinced I have a portraitist's eye. Hence all the shots in my back yard!

    Jonathan

  3. #343

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    Re: please post your petzval shots

    From a series I am doinf of my home town.
    No name Petzval 180mm 4.5
    Fomapan100 in FomadonR09 severely under-exposed and/or underdeveloped.


    Palau Maricel por rabato, en Flickr

  4. #344
    Large Format Rocks ImSoNegative's Avatar
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    Re: please post your petzval shots

    Quote Originally Posted by Luke79 View Post


    Luke i have a lens that does the exact same thing as yours
    Attached Thumbnails Attached Thumbnails petzval.jpg  
    "WOW! Now thats a big camera. By the way, how many megapixels is that thing?"

  5. #345
    Scott --'s Avatar
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    Re: please post your petzval shots

    Posted in the portrait thread, but I saw another B&J Ajax image in this thread, so I'll post this here, too:


    img050 by Scott --, on Flickr

    B&J Ajax #2 Portrait Petzval (from Richard Rankin), 10x12 FP4+
    "I am torn! I am processing a love for both princesses and pranking!" - N.E.P.T.R.

    http://scottperryphoto.wordpress.com/
    @ScottPerryPhoto

  6. #346

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    Jul 2013
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    Re: please post your petzval shots

    Hi all! I wrote an article about lens characteristics and "defects" on Photography Stack Exchange, with an underlying theme about how these technical flaws actually can be interesting and postive. Becase Stack Exchange is a wiki-like site, I'm looking for public domain or Creative Commons examples, and the example for field curvature I found is unfortunately boring.

    In looking around, I found this forum and this thread with many wonderful examples of the "Petzval swirl" field curvature effect here. I'm wondering if any of you would be willing to license (in low resolution for web use) any of these great examples in a way that could be used (for example under CC-BY, which requires a photo credit) to improve what I've written.

    In any case, thanks for all the great examples. I'm not a large-format photographer, but I found all of your work fascinating to look through.

  7. #347

    Re: please post your petzval shots

    All of mine are taken with a Gunlach ser A Portrait (9in?) on a Speed Graphic


    Click image for larger version. 

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    The above are on Illford Ortho Film aperture not noted.

    So far I've learned a couple of things. My speed graphic shutter doesn't like being used in the vertical position (got hung up at one point), and a magic arm on a baby jogger is not a good idea for a tripod.

    On the photo of the Gunner above the magic arm wouldn't hold so I was trying to steady the camera at a lower angle than I had intended while loading the film. As a result the focus is off, and, I think, the swirl is exaggerated because of the increased angle between the lens and the ground. My next move is to try to calibrate the rangefinder to the Petzal since I made the mistake of taking apart the shutter on the Jena that came with the camera anyway. Don't know when I can dedicate a day to learning how to reassemble the iris and shutter, and find the Petzval more interesting anyway.
    Last edited by alanbutler57; 1-Aug-2013 at 07:25.

  8. #348

    Re: please post your petzval shots

    One more done with Fresnel hot lights on HP5 pushed to 800:
    Click image for larger version. 

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  9. #349
    Jonathan K. jcoldslabs's Avatar
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    Re: please post your petzval shots

    A little Petzval chaos in the back yard this afternoon.

    Kodak 2D 8x10, 9" B&L Cinephor projection Petzval, Kodak Low Contrast Aerial Duplicating Film (SO-277).




    Jonathan

  10. #350
    Jonathan K. jcoldslabs's Avatar
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    Re: please post your petzval shots

    The back yard yet again.

    Pacemaker Speed Graphic, 6.5" B&L Cinephor projection Petzval, Kodak Aerographic Duplicating Film (2421).




    Jonathan

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