what is this...

Discussion in 'Critique Forum Archives' started by smyth, May 4, 2007.

  1. smyth

    smyth TPF Noob!

    Joined:
    Jan 19, 2007
    Messages:
    372
    Likes Received:
    0
    Location:
    Ottawa, Ontario
    Can others edit my Photos:
    Photos OK to edit
    blue tinge on the edge of the left hand side of the canadian penny? What causes it?

    [​IMG]
     
  2. elsaspet

    elsaspet TPF Noob!

    Joined:
    Dec 14, 2004
    Messages:
    4,055
    Likes Received:
    37
    Location:
    Dallas
    Can others edit my Photos:
    Photos OK to edit
    Bad White Balance.
    Nice photo though. Good macro!
     
  3. Hertz van Rental

    Hertz van Rental TPF Noob!

    Joined:
    Nov 8, 2004
    Messages:
    16,728
    Likes Received:
    45
    Location:
    Where am I now?
    It's more likely to be chromatic abberation. It is either the lens itself or something on the lens (a supplementary, a filter, a bit of grease). It's when the different wavelengths of light focus slightly differently. At it's worst (plastic lenses for example) you can get rainbows forming on edges.
    Most standard lenses that come with DSLR's can suffer from this in certain circumstances. Usually when they are on wide-angle you can get it towards the edge of frame. That's because the 'kit' lens is always the cheapest one the company makes.
    Zoom lenses tend to suffer more than standards.
    This is why you pay so much more for a 'pro' lens.
     

Share This Page