Results 1 to 9 of 9

Thread: Is my lenses having problem?

  1. #1

    Default Is my lenses having problem?

    Hi all,

    I tried to take photo of sunrise this morning.
    But i don't know why is the a sun reflection in my photo.
    Can someone enlighten me pls.
    Izit something wrong with my lenses?

    Setting used:
    Exposure Program: Aperture Priority
    ISO Speed: ISO 200
    Exposure Time 1/125
    F-Number: F/11
    Focal Length : 32mm


  2. #2
    Senior Member
    Join Date
    Mar 2004
    Location
    Central West
    Posts
    1,952

    Default Re: Is my lenses having problem?

    You have a filter on the front of your lens ? That'll be the cause of the flare/ghosting.

  3. #3
    Moderator ziploc's Avatar
    Join Date
    Jan 2002
    Location
    Snoopyland
    Posts
    4,577

    Default Re: Is my lenses having problem?

    Hi snaplover,

    Nothing wrong with your lens, that is a lens flare. Some lenses are more prone to flares when shooting directly into very bright objects, due to light being reflected from glass elements & inner barrels.

  4. #4

    Default Re: Is my lenses having problem?

    ya.. im using a skylight filter.
    does tat means i should remove the filter before taking the sunrise?

  5. #5
    Moderator ziploc's Avatar
    Join Date
    Jan 2002
    Location
    Snoopyland
    Posts
    4,577

    Default Re: Is my lenses having problem?

    Quote Originally Posted by snaplover View Post
    ya.. im using a skylight filter.
    does tat means i should remove the filter before taking the sunrise?
    You can certainly try. As gooseberry mentioned filters will also create flare/ghosting, especially the lower grade ones.

    Sometimes flare/ghosting will occur even when not shooting directly into the sun. In that case a lens hood will help.
    Last edited by ziploc; 18th April 2007 at 11:42 PM.

  6. #6

    Default Re: Is my lenses having problem?

    oh.. ic.
    Im using Kenko skylight filter. Is tat lower grade filter?
    i bought it for $68 from a shop in chinatown..

  7. #7
    Moderator ziploc's Avatar
    Join Date
    Jan 2002
    Location
    Snoopyland
    Posts
    4,577

    Default Re: Is my lenses having problem?

    Please don't get me wrong, not saying your filter is low grade. Just saying lower grade filters will cause such problem.

    Have not used Kenko filters before, most of my filters are Hoya and B+W so can't comment on that. But if using Hoya as an example, they have 'standard', 'HMC' (Hoya Multi Coated) and 'super HMC'. The multi coatings are there to reduce flare & ghosting by the filter. So the HMC/super HMC filters are less prone to such problem then the standard ones.

  8. #8
    Senior Member
    Join Date
    Mar 2004
    Location
    Central West
    Posts
    1,952

    Default Re: Is my lenses having problem?

    Quote Originally Posted by snaplover View Post
    ya.. im using a skylight filter.
    does tat means i should remove the filter before taking the sunrise?
    Yeah, it's generally recommended to remove your filter if you are shooting directly into bright light sources - especially with digital.

    Because the sensor in digital cameras is a lot more reflective than film, when you have a totally flat piece of glass in front of your lens (the filter) the light reflected off the sensor will reflect back off that flat piece of glass and create a 'ghost' image of the bright light source (more expensive filters may reduce this amount of reflection because of their special coatings).

    Removing the filter, you may still get some flare/ghosting (depends on the lens), but generally not to the extent we see in your photo (most modern lenses with multi-coated lens elements won't have such a bright ghost spot like that)

  9. #9
    Moderator ziploc's Avatar
    Join Date
    Jan 2002
    Location
    Snoopyland
    Posts
    4,577

    Default Re: Is my lenses having problem?

    Btw, you can have a look at this page that describes the different Hoya coatings:

    http://www.thkphoto.com/products/hoya/coatings.html

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •