Filter - before or after lens adapter?

Discussion in 'Beyond the Basics' started by daleremote, May 18, 2006.

  1. daleremote

    daleremote TPF Noob!

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    Let's say I've got a wide angle (or tele) converter lens on my camera.

    Does it make any difference if
    1) I put a UV filter between the camera's regular lens and the converter lens
    -or-
    2) I put a UV filter on (in front of) the converter lens itself.

    Is the key to keep UV rays from hitting the film/sensor? (In which case there is no difference between 1 and 2.)
    Or, is the key to keep UV rays from hitting any glass and dispersing within the lens? (In which case #2 is better.)

    Same for ND filters or any other kind of filter?

    Am I really just splitting hairs here?

    Thanks for any pointers,

    — Dale


     
  2. tasman

    tasman TPF Noob!

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    I don,t think their is a difference which one goes on first. I always have a UV filter on to protect the front of the lens. Then I would add what ever filter after.
     
  3. Torus34

    Torus34 No longer a newbie, moving up!

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    Filters in front.
     
  4. benhasajeep

    benhasajeep No longer a newbie, moving up!

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    Well if possible filters in front. But some lenses you have to have filters in the rear just due to their construction (wide angles, large telephoto).

    I am inclined to say in front just due to the fact that I use a circular polarizer and would not want anything hanging off the front of it with any weight. Just in case it came apart.

    Picture quality wise. I really don't know enough about filter specifics and if one keeps light from scattering or what. Also I don't know if it would be that much of a difference as some lens adapters are not that high in glass quality / construction anyway.
     

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