Super Wide Angle Lenses & Filters

Discussion in 'Australia Photography' started by Jim Cook, Aug 9, 2008.

  1. Jim Cook

    Jim Cook Guest

    Another one for you. I use a thin CIR-PL (particularly) and
    (separately) a UV filter on a Canon EF-S 10-22mm lens (77mm filter
    size) on a Canon EOS 350D. I was planning to get some other
    (particularly B&W) filters to play around with using the above
    combination - will these standard thickness filters work okay or will
    I get vignetting?

    Jim Cook, Aug 9, 2008
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  2. Jim Cook

    Mark Thomas Guest

    YMMV depending on your quality standards, the filters' quality
    standards, and the type of shooting.. but for me, I never shoot with
    more than one filter attached. One filter already adds two glass air
    surfaces, an extra refraction and the potential for reflections/flare
    (esp.if shooting at night or into the light).

    In most circumstances you probably won't spot the difference when one
    filter is added, but two...?

    And may I ask what effects you are going for? If you are planning on
    using, say, red/greeen/yellow filters for b&w, have you seen what the
    channel mixer (in PS) does? You can use the RGB channels of your colour
    images in whatever mix you want - when combined with layers I find this
    far more flexible than using actual filters.

    Having said that, if you are pushing the dynamic range of your images,
    using filters may be a slightly better way to go. I'll happily confess
    I'm no b&w genius - hopefully others might wish to add their 2c...

    As for the vignetting if you really must use two filters - you may lose
    a small amount of your wide angle zoom range. Take the camera to the
    store and test, or cut a suitable width strip of cardboard and wrap it
    around your filter and take a look..
    Mark Thomas, Aug 10, 2008
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  3. Jim Cook

    Jim Cook Guest

    I must have been unclear (and ignorant at the same time) - was not
    proposing to use more than one filter at the same time.
    I thought one non-thin filter just by itself may have produced
    vignetting at the widest wide angle end of the zoom range. Am aware of
    capabilities of digital software to alter colour channels of images
    ('tho I don't have PS). Just thought I'd try some B&W filters anyway.
    Thanks for your suggestion re testing.
    Jim Cook, Aug 10, 2008
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