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  1. #1
    SAShruby's Avatar
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    Infrared Filters

    Since I'm in Large format, I guess I'm going to post here. There are some IR filters on Ebay from China. I'm looking for 95mm one in 720nm range. They go usually for $100 or so. Did anyone had a chance to test those?

    Are they worthed those bucks?
    Thanks
    Peter Hruby
    LF Silver Photography

  2. #2
    keithwms's Avatar
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    $100 is very inexpensive for an IR filter of that size. If they are good then it's quite a good deal. I think I dropped 2 or 3 times that much for a 77mm filter with similar cutoff, from Hoya.

    I would try to find out whether the filter is plastic or glass based, whether it has any coating, whether the threads are plastic, and perhaps you can ask them for a transmission spectrum.
    "Only dead fish follow the stream"

    [APUG Portfolio] [APUG Blog] [Website]

  3. #3
    tiberiustibz's Avatar
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    I found a 58 odd millimeter 720mm for $25 on the bay but I'm told that's rare.

  4. #4

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    Any interest in a 4x4 Kodak Wratten gel in perfect condition?

  5. #5
    paul_c5x4's Avatar
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    Quote Originally Posted by Mike1234 View Post
    Any interest in a 4x4 Kodak Wratten gel in perfect condition?
    Yes please - I've got a gel filter that is starting to show some damage, so it could do with being replaced.

  6. #6

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    Quote Originally Posted by paul_c5x4 View Post
    Yes please - I've got a gel filter that is starting to show some damage, so it could do with being replaced.
    I'll research prices and sell it at a substantial discount. I don't think many of the gels I have were ever used... at least they look brand new with no water damage or scratches. Some are still sealed.



 

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