Vignette V's Sharpness ?
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    jberth1
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    Vignette V's Sharpness ?

    by jberth1 » Mon Dec 16, 2013 9:40 am

    Sorry for the quick and nasty question, but I have a choice of 2 lenses which cover the same function, but perform differently.

    One lense vignettes, and the other one is sharper. I don't have any other choices.

    Would you go for the sharper lense, and correct vignetting in PP ?

    or would you go for the lense that doesn't vignette, and correct for sharpness in PP ? or even in camera ?

    Thanks for any tips

    Justin
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    Re: Vignette V's Sharpness ?

    by W G » Mon Dec 16, 2013 10:16 am

    Justin,

    Surely the vignetting is something that has disappeared once you stop down.

    There is always the option of using the vignetting as a part of the statement you make.

    On the other hand, with a portrait or a picture of a blossom, ultimate sharpness may be a hindrance.

    It would help, in fact, if you mentioned the focal length and subject matter. Such choices are always in context of the subject.
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    Re: Vignette V's Sharpness ?

    by gerry » Mon Dec 16, 2013 12:40 pm

    imo, no brainer.
    vignetting in PP is easy, sharpness in PP different kettle of fish and you will never recover sharpness from a soft image in the same way that a good lens produces sharp images..

    thus given those two parameters - sharp lens is a winner ;)
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    Re: Vignette V's Sharpness ?

    by jberth1 » Tue Dec 17, 2013 8:29 am

    gerry wrote:imo, no brainer.
    vignetting in PP is easy, sharpness in PP different kettle of fish and you will never recover sharpness from a soft image in the same way that a good lens produces sharp images..

    thus given those two parameters - sharp lens is a winner ;)


    The vignetting does go away once I stop down, but in the past pushing the ISO hasn't been the solution as it's introduced noise I didn't want either, so I've had to shoot wide open in available light.

    Back in the early days of digital it seemed pretty easy to use some unsharp in PP, but I still got the feeling that I really only had a soft image anyway. Now that the PP software is a bit smarter I might try a profile built around my lense to correct for vignetting and see how we go.

    Thanks for the tips

    Cheers

    Justin
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    Re: Vignette V's Sharpness ?

    by Busiboy » Tue Dec 17, 2013 8:21 pm

    Sounds like you are comparing two very different bits of glass.

    I too would be interested in the length and speed of the lenses being compared.
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    Re: Vignette V's Sharpness ?

    by heartyfisher » Wed Dec 18, 2013 2:15 am

    Why not tell us the lens you are talking about ? chances are there are several other criteria to consider that you may not have thought of :-)

    But if its only Sharpnes vs Vignett.. I would go for sharpness .. Vig is easy to correct.
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