11 common lens errors and how you can avoid them

    | Photography Tips | 05/06/2013 00:01am

    Common Lens Error No. 10: Vignetting

    5 common lens problems: Vignette

    Most lenses produce images with slightly darkened corners when they are used with the aperture wide open.

    Although this vignetting is technically a flaw, it can be attractive and some photographers even add it post-capture to help draw attention to the subject.

    If you want to avoid it, however, you need to close down the aperture a little.

    Vignetting can also be caused by an ill-fitting lenshood that hasn’t been twisted into the correct position, or a stack of filters that has been screwed onto the end of the lens.

    These may cause excessive shading or even extend into the edges of the frame – especially with wideangle lenses.

    For the best results use a hood that is specifically designed to be used with your lens.


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    Common Lens Error No. 11: Soft images

    Photography Tips: Avoid portraits that are out of focus

    This portrait suffers from eyes that just aren’t quite sharp

    If you are partial to scrutinising your images at 100% on a computer screen you’ll notice that the focus point in shots taken with the aperture wide open or closed right down isn’t as sharp as in those taken with a mid-range aperture.

    If you want to get the best from your lens its worth shooting a sequence of images of the same subject and focus distance at every aperture.

    Then examine the shots at 100% on-screen and find the shot in which the subject looks sharpest.

    Once you’ve found it check what aperture the image was taken at – this is the lenses optimum aperture.


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    Posted on Wednesday, June 5th, 2013 at 12:01 am under Photography Tips.

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