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Thread: Wildest Petzval Swirl Ever

  1. #1

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    Wildest Petzval Swirl Ever

    As some of you petzval fan's know, we have a petzval flickr group with many examples of shots taken with these lenses.

    But when I saw this one I just suspect it's a photoshop attempt to make a swirl. I asked the photog but no answer yet.
    http://www.flickr.com/photos/28713901@N04/3951456368

    I mean, has anyone seen it go from sharp, to swirl, then back to NOT swirled before the coverage even drops off? The only thing I've seen close is when the rear assy is misassembled. I told the owner that he might want to check. But it just looks seriously fake, all items at all ranges are swirling mightily, even the tree trunk which has no highlights....

  2. #2

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    Re: Wildest Petzval Swirl Ever

    he posted this on apug.org as well. quite cool

  3. #3

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    Re: Wildest Petzval Swirl Ever

    Yes, the same photographer posted a bunch of shots on APUG. His b+w work looked authentic enough. I agree--that's one crazy Petzval signature. I say real because photoshopping and doing all that masking would be more work than using a Petzval. Maybe there's some bad separation in the lens?

  4. #4

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    Re: Wildest Petzval Swirl Ever

    There seems to be too much of the twigs and berries part ofthe image in sharp focus for it to be a real straight from the camera image. Some of these digi-freaks will spend weeks trying to get special effects, probably 'cos they leave very shallow lives.
    Pete

  5. #5

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    Re: Wildest Petzval Swirl Ever

    Quote Originally Posted by Pete Watkins View Post
    There seems to be too much of the twigs and berries part ofthe image in sharp focus for it to be a real straight from the camera image. Some of these digi-freaks will spend weeks trying to get special effects, probably 'cos they leave very shallow lives.
    Pete
    True enough, but to do all that work and then post it in APUG, that's adventurous.

  6. #6
    3d Visual Effects artist
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    Re: Wildest Petzval Swirl Ever

    the photo looks like it was genuinely shot through a lens to me, that's a wild one for sure!

    Quote Originally Posted by Pete Watkins View Post
    digi-freaks will spend weeks trying to get special effects, probably 'cos they leave very shallow lives.
    Daniel Buck - 3d VFX artist
    3d work: DanielBuck.net
    photography: 404Photography.net - BuckshotsBlog.com

  7. #7

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    Re: Wildest Petzval Swirl Ever

    Quote Originally Posted by Daniel_Buck View Post
    sounds like a pretty closed minded and insecure comment to me.
    i was pretty shallow when all i did was film.. i don't think digital has changed it

    the enlarged version looks real.. there's a glow that's pretty hard to dup in photoshop around the 'in focus' areas.. but even if not.. it's still an interesting image

  8. #8

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    Re: Wildest Petzval Swirl Ever

    It reminds me of how the ground-glass image of my 8x10 Vesta looked before I figured out it had one of its rear elements installed backwards.

  9. #9
    Terence
    Join Date
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    Re: Wildest Petzval Swirl Ever

    As the background is far enough away to be out of focus, it makes sense to me that it would have the swirl back there as well. But maybe I'm not understanding all the optical issues of petzvals.

  10. #10

    Join Date
    Oct 2008
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    Re: Wildest Petzval Swirl Ever

    Perhaps a strong anti-vignetting filter has been added, causing the strange effect at the edges? It would make more sense if there was a illumination fall-off after the bulge effect.

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