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Nikon Prime lenses request

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3 comments

  • James Grove

    Hi, it might be best to place this in the Feature Requests forum? Alas I think that C1 generally have to get their hands on the lenses to profile them.

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  • photo by FA

    Hi,

    Because these lenses are really long tele photo and nearly perfect as optical corrections, the feedback I got back then for  my 300/2.8 was a correction is not needed.

    Apparently correction is good for zoom or wide lenses.

    BW,

    F

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  • SFA

    As photo by FA has written, in general an expensive long prime lens should not really require any significant predictable correction by default.

    However, in certain situations some additional correction may be required. 

    For example I have an ancient 600mm lens that, in perfect conditions and used wide open as intended, gives excellent results UNLESS there is strong sunlight from a specific direction and a lot of full DR edges in the image. In that case the Purple fringing can be extreme. However, that is not really something that could be built into any generic correction assessment. In addition I have to use a lens mount adaptor and that may also offer some enhanced unpredictability - as might my approved 2x Extender on another lens I own.

    In most modern lenses the manufacturer needs to provide correction values for them to work acceptably and so they should be just about as corrected as they can be optically based on the manfacturer data delivered when the shot is captured. C1 present those results, where provided, as "Manufacturer Profile" when converting RAW files. JPG files will have those values embedded in-camera. 

    Wide-angle and zooms  - especially zooms with wide-angle facilities or a relatively wide range - have more need of optical correction in some part(s) of their range unless they are very carefully designed (for that read "expensive") and enough work has been applied make them almost perfect. Even then, for modern lenses and camera bodies, one might expect some fine correction to be applied using the Manufacturer-provided data. That offers the potential to correct specifically lens by lens for high end models. Whether anyone does this I have no idea.

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