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  1. #1

    Join Date
    Sep 2002
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    747
    A while back I bought a set of filters. The filters are from some place in Eastern Europe but the main reason for buying them were the two step up rings [40.5 and 52] that I just happened to need. The filters worked just fine and I guess are of reasonable quality. They've been mostly used with the 35mm camera's meter so I didn't really worry too much with exposure. On the camera with the broken meter I just used the filter factor that's on the filters. Everything worked fine so I didn't worry.

    Well today I decided to check the filters with the meter to see if the filter factors actually match. At first the numbers seemed way out of wack. Then I noticed I was holding them wrong way out. Flipping them over the numbers matched up nicely. I then checked some Hoyas [Are these made in Georgetown?-)] and they also did the same thing. Is this normal? Is this just one more case that I shouldn't check things to avoid confusing my self? Or does this mean the quality of the filter is lacking?

  2. #2

    Join Date
    Dec 2002
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    Interesting observation, I checked my filters because you aroused my curiosity and I found that mine are exactly the same no matter which side is nearer the lens. The only time that I could see a filter orientation making a difference is if it were polarizing the light rays striking it. It might be interesting to check your filters effect against various orientations to the sky and by rotating the filters orientation as to position of up and down on the perimeter of the filter mount.
    Art is a step from what is obvious and well-known toward what is arcane and concealed.

    Visit my website at http://www.donaldmillerphotography.com

  3. #3

    Join Date
    Sep 2002
    Posts
    747
    I just rechecked. This time I used a window with a large over hang. They are much closer this time. All except one that's still off. One thing I'm wondering if it's me getting my fingers in the way. I guess I should make a cardboard holder and tape it to the window or something.

  4. #4

    Join Date
    Sep 2002
    Location
    France
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    Robert,

    make sure that your meter does not catch any reflections from the filter glass. Hold your meter as close as possible to your filter.

  5. #5

    Join Date
    Sep 2002
    Posts
    747
    That must have been it. I basically stuck the meter right onto the filters and things seem fine. I guess I should just trust the manufacturer.

  6. #6

    Join Date
    Sep 2002
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    Just north of the Inferno
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    That last line will come back to haunt you....

    Official Photo.net Villain
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    [FONT=Comic Sans MS]DaVinci never wrote an artist's statement...[/FONT]



 

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