UV filter, what does it do?

Discussion in 'Photography Beginners' Forum' started by Thunderwolf, Oct 18, 2008.

  1. Thunderwolf

    Thunderwolf TPF Noob!

    Joined:
    Oct 15, 2008
    Messages:
    18
    Likes Received:
    0
    Location:
    England
    Can others edit my Photos:
    Photos OK to edit
    this will sound like a very noobie question i expect, but

    i've noticed i have a UV filter on my camera which must have been on there since my dad gave it to me.


    but i want to know what it accualy does and the sort of pictures i should use it for
     
  2. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

    Joined:
    May 1, 2008
    Messages:
    23,100
    Likes Received:
    3,767
    Location:
    UK - England
    Can others edit my Photos:
    Photos OK to edit
    UV filters are normally added as a protection filter - to protect the front glass of a lens. As a protection they are debated about and there is no fixed answer - some people always shoot with them for protection, whist others never touch them (under claims of loss of sharpness).
    Honestly though a good make UV filter will hardly affect the end result - as to the protection that is up to the indevidual.
    They do also block out UV light, but many lenses today have UV coatings anyway, so they are less needed. With older cameras and specific situations I am less familiar
     
  3. mrodgers

    mrodgers No longer a newbie, moving up!

    Joined:
    Dec 13, 2007
    Messages:
    1,662
    Likes Received:
    7
    Can others edit my Photos:
    Photos OK to edit
    Ah! So that's what a UV filter is for? Here I thought it was for keeping your photos from being sunburned. I don't have one, so I've been the kid's SPF15 sunblock on the lens. I was wondering why all my photos were looking like this....

    [​IMG]

    :lmao:
     
  4. tasman

    tasman TPF Noob!

    Joined:
    May 7, 2006
    Messages:
    468
    Likes Received:
    2
    Location:
    Edmonton, Alberta, Canada
    Id rather spend $20 on a UV filter and protect the front of the lens than spend $300 to replace my lens if I damage it. And I dont find any difference in the quality of the photos with or without it.
     
  5. Thunderwolf

    Thunderwolf TPF Noob!

    Joined:
    Oct 15, 2008
    Messages:
    18
    Likes Received:
    0
    Location:
    England
    Can others edit my Photos:
    Photos OK to edit
    my dad (who now has such an expensive camera he is scared of using it) took 2 shots of the sky, seems the only thing it does is give more detail to clouds.



    i think i'll keep mine on, 1 it protects the lens (mine don't come off so if i damage it thats a whole new camera) and 2, it easier to clean the filter than clean the lens
     
  6. chrisburke

    chrisburke TPF Noob!

    Joined:
    May 25, 2007
    Messages:
    2,107
    Likes Received:
    0
    Location:
    Madoc, Ontario Canada
    Can others edit my Photos:
    Photos OK to edit
    lol
     
  7. ksmattfish

    ksmattfish Now 100% DC - not as cool as I once was, but still

    Joined:
    Aug 25, 2003
    Messages:
    7,021
    Likes Received:
    34
    Location:
    Lawrence, KS
    Can others edit my Photos:
    Photos NOT OK to edit
    UV bounces around (that's why the sky and shade are blue). In some places, such as high altitudes, near the ocean, or big cities this can result in a slight, but perceptible haze. While mostly used as a lens protector, a UV filter will also cut this haze.
     
  8. BlownChevy

    BlownChevy TPF Noob!

    Joined:
    Oct 12, 2008
    Messages:
    9
    Likes Received:
    0
    My UV filter spins and will/does effect the color in the photo. Yes, I know I am a newbie....Just trying to understand.
     
  9. Josh66

    Josh66 Been spending a lot of time on here!

    Joined:
    Oct 31, 2007
    Messages:
    14,604
    Likes Received:
    1,236
    Location:
    Cedar Hill, Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    Are you sure that's not actually a circular polarizer? Is it clear, or tinted?

    I've never seen a UV filter that spins...
     
  10. maulrat

    maulrat TPF Noob!

    Joined:
    Jul 23, 2008
    Messages:
    652
    Likes Received:
    0
    Location:
    San Diego, CA
    Can others edit my Photos:
    Photos NOT OK to edit

    My Hoya Circular Polarizer filter spins too. I wonder why it spins.
     
  11. icassell

    icassell TPF Noob!

    Joined:
    Jun 7, 2008
    Messages:
    9,893
    Likes Received:
    10
    Location:
    Arizona
    Can others edit my Photos:
    Photos NOT OK to edit
    Did you use the kind for UVA or UVB? That might be the problem! Also, I'm not sure SPF15 is enough.
     
  12. Josh66

    Josh66 Been spending a lot of time on here!

    Joined:
    Oct 31, 2007
    Messages:
    14,604
    Likes Received:
    1,236
    Location:
    Cedar Hill, Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    (are you joking...? can't tell)
    A polarizer spins to adjust the amount of polarization. Try it. Look at something with a glare on it, then start rotating the filter and watch what happens. You can do this without even mounting it to a lens, just look through it while rotating it in your hand.




    I don't see any reason why a UV filter would need to spin though.
     

Share This Page

Search tags for this page

what does a uv filter do

,

what does lens filter do?

,

what does uv filter do photography

,

what does uv filter do?