Filter Question

Discussion in 'Photography Beginners' Forum' started by crowl31, Oct 15, 2008.

  1. crowl31

    crowl31 TPF Noob!

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    I want to get a new filter for my new lens (Tamron 17-50 2.8) but i'm not sure on which one to buy.

    Budget is up to $75


    Any suggestions?

    Thanks
     
  2. Johnboy2978

    Johnboy2978 No longer a newbie, moving up!

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    a circular polarizer is generally the first filter most people get. Did you have a need for a specific type of filter or just want to spend more $? A lot of people will also get a UV filter to protect the front element of their expensive lenses. I have one for my 70-200mm f/2.8 lens but don't have one for my others. I'm still kind of debating the need to have one on them though. I just got an ND filter. One thing to keep in mind with buying filters though is to buy the size of your largest diameter lens and then buy step filters to fit all your other lenses. It's much cheaper than buying multiple sizes of each filter.
     
  3. maulrat

    maulrat TPF Noob!

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    it all depends on what you want the filter to do for you. If you want lens protection, get a UV multi-coated filter. Long exposures, get an neutral density filter... want to reduce reflection on water and get some deep blue skies, get a CPol.

    What do you want your filter to do for you?
     
  4. tirediron

    tirediron Watch the Birdy! Staff Member Supporting Member

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    All filters have a purpose, so it's good to know what you want the filter to do. If you don't already have one, the most important filter you can get is a circular polarizer, however $75 may be a bit tight (I think that's a 72mm thread isn't it?). Try the used stores, as long as they're not scratched, they're fine. Stay away from cheap filters, look for brands like Hoya, B+W, Tiffen, Rodenstock and Heliopan.
     
  5. maulrat

    maulrat TPF Noob!

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    check out this website

    http://www.photosig.com/go/photos

    then click on "browse by filter"
    this will give you some examples of how different filters affect photos...
    just be careful. there are many filters to choose from.
     
  6. Sim

    Sim TPF Noob!

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    I've heard this before but what about lens hoods? I'd imagine you can't use one if you have a larger filter on your lens...
     
  7. tirediron

    tirediron Watch the Birdy! Staff Member Supporting Member

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    Exactly. Going bigger is good. Up to a point.
     
  8. Sim

    Sim TPF Noob!

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    I also remember reading that the only filter you can't mimic in post processing is a polarizer... Is that true?
     
  9. Josh66

    Josh66 Been spending a lot of time on here!

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    Pretty much. You can make the sky a darker blue pretty easily in PP, but you're not going to be able to get rid of reflections (well, maybe you could - a little). You'll never be able to take the glare off of the surface of water to see what's under it in PP though.


    Edit

    Oops, I misread your post. The above is all true, but I would add something.

    A polarizer can't be replicated in PP, but I wouldn't say that it's the ONLY filter you can't do in PP.

    Photoshopped IR never looks as good as real IR, IMO.
     
    Last edited: Oct 15, 2008
  10. Sim

    Sim TPF Noob!

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    Ah yes, I didn't even think of IR.

    Thanks :)
     
  11. tirediron

    tirediron Watch the Birdy! Staff Member Supporting Member

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    Not strictly speaking, the Nik Color Effex series has a polarizer which under certain conditions doesn't do a bad job. It's nothing like using a real filter would have been, but it's acceptable in a pinch.
     
  12. Joves

    Joves No longer a newbie, moving up!

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    Yeah the Nik is pretty good but not close. BUT! You can save the picture you used the CP on and, then keep polarizing it and, saving, repeat, till you get it fairly close. I like my CPol for alot of shots and, use it more that my other filters. That and my ND. I also have a Blue Polarizer for some of the areas here, it really brings the reds out in shots.
     

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