CPL filter for my Tamron 18-250?

Discussion in 'Photography Beginners' Forum' started by triumz, Apr 11, 2008.

  1. triumz

    triumz TPF Noob!

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    I don't really understand about filter. If i buy a 55mm CPL filter, is that means that the filter for 55mm lens only...

    Thanks...
     
  2. evo5gsr

    evo5gsr TPF Noob!

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    Look for the symbol that looks like a circle with a diagonal line crossing it. That's usually under the lens cap or the front of the lens itself. A number should precede that symbol. That's the filter size you need.
     
  3. Mystwalker

    Mystwalker TPF Noob!

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    Apologies in advance if I am oversimplifying ...

    A "55mm filter (CPL, UV, ND, etc ...)" is not necessarily for a 55mm lens.

    The 55mm is the diameter of the lens - I think. It is not the "length" of lens.

    ex: I have 77mm filter for my 70-200
    I have 52mm (I think) for my 28-135
    I have 77mm filter for my 17-40

    The 70-200 lens and 17-40 lens happen to have the same diameter while the 52mm is smaller.

    The Tamron 18-250 ... is it this one? http://www.bhphotovideo.com/c/product/477062-REG/Tamron_AF018S700_AF_18_250mm_f_3_5_6_3_Di_II.html
    If you go to specs for that lens, it will tell you that the filter size is "62mm". Filters you can use are also on that page. B&H makes it easy :)

    Hope this helps.
     
  4. KhronoS

    KhronoS TPF Noob!

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    That 55mm is the diameter of the filter and fits with any lens that have the same 55mm diameter. :)
     
  5. triumz

    triumz TPF Noob!

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    Thank You Guys... :)

    I'm ready to search & shop now :D
     

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