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lens correction : moustache distortion

Comments

6 comments

  • Paul Steunebrink
    I think you're assessment is correct.

    Let me guess: Canon TS 24mm (previous century model)? 😉
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  • Alain Decamps
    [quote="Paul_E" wrote:
    I think you're assessment is correct.

    Let me guess: Canon TS 24mm (previous century model)? 😉


    No, it's the "mundane" Tamron AF 17-35mm f/2.8-4 Di LD Aspherical IF SP at 17 to xx mm.

    Fortunately the switch to pincushion (going back up) is only in the corners, but very clear when a building is rather frame filling.

    I find this restriction very unfortunate because the keystone and LCC corrections are very nice. The keystone is not useful if the distortion correction hasn't happened before.

    I know that the free pano tools (hugin) makes it rather easy to calculate the needed correction factors (in hugin it's a,b,c) for a lens, the same goes for imatest.
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  • rawshooter
    I find this restriction very unfortunate because the keystone and LCC corrections are very nice. The keystone is not useful if the distortion correction hasn't happened before.


    Absolutely agree. I have the same problem with the Nikon 18-105 @ 18mm. â˜šī¸
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  • Alain Decamps
    [quote="rawshooter" wrote:
    I find this restriction very unfortunate because the keystone and LCC corrections are very nice. The keystone is not useful if the distortion correction hasn't happened before.


    Absolutely agree. I have the same problem with the Nikon 18-105 @ 18mm. â˜šī¸


    Unfortunately, no change.
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  • rawshooter
    [quote="Alain" wrote:
    Unfortunately, no change.


    I guess that non P1 lenses are not on top of any priority list.
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  • Jim MSP
    [quote="rawshooter" wrote:
    [quote="Alain" wrote:
    Unfortunately, no change.


    I guess that non P1 lenses are not on top of any priority list.


    This is one of the advantages of Lightroom. The new LR4 beta is looking pretty good right now.
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