Filter Question

Discussion in 'Beyond the Basics' started by Soul Rebel, Apr 14, 2006.

  1. Soul Rebel

    Soul Rebel TPF Noob!

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    My dad picked up 3 filters by Hoya from a garage sale today. They dont say what they are but along the side they say HOYA 58 and an oval with a check through it and the three are numbered +1, +2 and +3.

    What are they?
     
  2. omeletteman

    omeletteman TPF Noob!

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    I would guess maybe Neutral density filters? the 58 is the thread size.
     
  3. Soocom1

    Soocom1 TPF Noob!

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    What the +1,+2,+3 means is the magnification capability of the filters.
    There are many that are also -1,-2,-3, etc. They were originally designed for fixed lens cameras of old that couldn't zoom in or out on a subject.
    Sort of like a macro lens on the cheap. The 58 is the diameter size of the filter itself, and if they doesn't have any threads anywhere on it, they may be a Series 9 filter made for cameras from the 1970's.
     
  4. Soul Rebel

    Soul Rebel TPF Noob!

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    Thanks.

    I forgot to actually check to see if the filters would fit:(
     
  5. Torus34

    Torus34 No longer a newbie, moving up!

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    First, are they filters [not clear colorless glass] or lenses [clear colorless glass]?
     
  6. Hertz van Rental

    Hertz van Rental TPF Noob!

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  7. mentos_007

    mentos_007 The Freshmaker!

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    macro lenses probably
     

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