Fogging on infrared film? ...yes, again!

Discussion in 'Canon EOS' started by ross_hight, Mar 5, 2002.

  1. I've seen this question discussed before, but none of what I've been able to find has mentioned the Elan 7E/EOS 30 specifically, and there seems to be some disagreement (or at least very different results on various EOS bodies).

    <p>

    I would like to shoot Kodak high-speed infrared and Konica infrared 750 on my Elan 7E QD. Will the IR diode only fog along the sprocket holes, or will it ruin the image area? Also, I'm told that a dimpled back plate will change the result on the Kodak HIE because of the missing anti-halation layer. My backplate is not dimpled, but it does have some features, such as small Phillips screws. Will these show up on the image as well?

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    Thanks in advance to anyone who knows the answers... I have to make a pretty good drive before I reach to a store that sells IR film, so shooting some just to check is not very practical.
     
  2. i'm sorry, but seriously: shoot some and see! (if you don't like
    driving far, why not order the stuff online?) people with the same
    camera-model report varied success. you can only try to see how
    well it works. if you're lucky, nothing will spill over to the image
    area.

    <p>

    the screws will not show up in the image.
     
  3. I think trial-and-error is the only true answer. Canon's official
    position is that infra-red films won't work in the Elan. But
    some "low-speed" IR films like the one from Ilford DO work. Other
    films will probably be fine, but you will have to make the long drive.
     
  4. I agree with the previous two answers. Empirical testing, long drive or no long drive, is the only way to find out to what extent your particular camera has problems with HIE.
    http:// www.teladesign.com/photo/eos-ir.html
     
  5. Hi RD

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    I have an EOS 30 (Elan 7E to you), and have used Konica IR750 and the
    results were excellent with no fogging at all. I am told that the
    effect with the Konica IR750 film isn't quite as dramatic as Kodak
    HIE, but it still looks like a good IR effect to me. I also used a
    Hoya Infra Red Filter (R72) to increase the effect of IR.

    <p>

    You can barely see through this filter so you have to compose with
    the filter off the lens, then meter and shoot with the filter on the
    lens. I shot three images of each subject +/- 2 stops either side f
    the meter reading to ensure I had a choice of exposure extremes and
    the results were great on bright days.

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    Have a go with this film/filter combiniation and see what you think.
    Let me know what your results are like too if you want!

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    Good luck.
     
  6. Any AF camera has infrared sensors inside and will fog the Kodak
    High speed Infrared films... Have you tried Ilford SFX? It is
    designed for these type of cameras. Good luck!!!
     
  7. >Any AF camera has infrared sensors inside and will fog the
    Kodak High speed Infrared films.

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    That is incorrect. The infrared sensors are part of the film
    transport mechanism (motor drive) and are not related to the
    autofocus (AF) system in any way.

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    Many autofocus cameras can be used quite safely with Kodak
    HIE and EIR high-speed infrared film.
     

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