asdf

    Lens distortion: everything every photographer must know

    | Photography Tutorials | Tutorials | 12/10/2012 11:30am
    0 Comments

    Learning the lingo

     

    Barrel distortion
    Lens fault common on ultra-wide lenses that bows straight lines outwards at the edges.

    Chromatic aberration
    Lens fault in which wavelengths of light are refracted by different amounts, or brought to focus at different distances.

    Pincushion distortion
    Lens fault common on long telephoto lenses that causes the image to appear to bow inwards at the edges.

    APO
    Apochromat. A type of lens, made by Sigma and others, that’s designed to correct chromatic aberration.

    ED
    Extra-low dispersion. A range of Nikon lenses designed to correct chromatic aberration.

    UD
    Ultra-low Dispersion. Element found in some Canon L-Series lenses that’s designed to correct chromatic aberration.

    PAGE 1: Common questions about lens distortion
    PAGE 2: Types of lens distortion
    PAGE 3: Why does chromatic aberration occur?
    PAGE 4: Learning the lingo

    READ MORE

    DO or Di? Your lens markings explained
    How to find your lens’ sweet spot
    Free-lensing: dismount your lens for this ultimate creative effect


    Posted on Friday, October 12th, 2012 at 11:30 am under Photography Tutorials, Tutorials.

    Tags: ,

    Share This Page

    sssss