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Lens Sharpness

  • 08-05-2007 3:00pm
    #1
    PaulieC
    Registered Users, Registered Users 2 Posts: 6,196 ✭✭✭


    Hi All,

    Is there an easy method of testing a lens' sharpness? By easy, I mean something I can do at home. I have two Sigmas - a 10-20 and 24-70 and I'm not sure if they are soft or not. Some images look soft, but I'm not sure if it's my focusing that's the problem.

    Thanks


Comments

  • #2
    Fenster
    Closed Accounts Posts: 4,763 ✭✭✭Fenster


    lol ur photoz r burlly

    I'd like to know too, for that matter. I feel my 17-85mm is way sharp, especially away from the middle.


  • #3
    Cameraman
    Registered Users, Registered Users 2 Posts: 480 ✭✭Cameraman


    Simplest method I've come across is to photograph a newspaper taped to a wall.
    Print should be sharp all the way to the edge etc.

    Make sure the camera film/sensor plane is parallel to the wall.


  • #4
    ThOnda
    Registered Users, Registered Users 2 Posts: 4,699 ✭✭✭ThOnda


    Tripod, time shutter, not direct light, something sharp like newspaper or branches.
    Try different focal lenghts and apertures for each focal lenght.


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