thin infra red filter

Discussion in 'Open Discussion' started by vinay, Nov 26, 2012.

  1. vinay

    vinay Mu-43 Regular

    137
    Mar 18, 2012
    Toronto
    This is a long shot, but .. I need an infra filter to stick on the onboard flash on my E-P3 .. does anybody have some unexposed but developed slide film sitting around? :smile:
     
  2. RobWatson

    RobWatson Mu-43 Hall of Famer

    Roscolux #26 or #27
     
  3. vinay

    vinay Mu-43 Regular

    137
    Mar 18, 2012
    Toronto
    I don't think those would cut it - Rosco #27 has 4% transmission... I'm currently using a Lee #787 (1% transmission) which is good for most cases but not all.. since it's on a flash, not good enough implies red tint on photos..

    A Lee #87 (IR) would be ideal but is too expensive locally - so i'm hoping somebody has some developed slide film ends sitting in a box in their attic somewhere ;)
     
  4. RobWatson

    RobWatson Mu-43 Hall of Famer

    Ah, so you are trying to use the flash as an IR remote trigger for a off camera flash?

    I thought you wanted an IR flash for IR photos!

    Most ND filters open up in the NIR ... maybe a combo of Rocolux 27 and ND (#98) get the visible down enough while still retaining good NIR levels. Or a hunk of UG5 (I have a bunch).

    Roscolux27_981.

    Or add Roscolux 27 to 85 (opens in the NIR) - I'm assuming you have these gel filters (I mean, who doesn't?).

    Roscolux27_85.
     
  5. vinay

    vinay Mu-43 Regular

    137
    Mar 18, 2012
    Toronto
    And yes, this is to use the flash as an IR trigger :)

    Didn't think of stacking an ND - thanks for the tip, will try that!