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  1. #11
    RobertV's Avatar
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    Well, it's the Stella Polaris windmill in Demen, the Netherlands and it's used to live in. A pretty remarkable "house".
    This photo has been made about 3 weeks ago.

    Here a detail of the top with the name. Made on Efke 25 in Beutler.


  2. #12
    bobwysiwyg's Avatar
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    Quote Originally Posted by RobertV View Post
    Best cameras are TLR, Range Finder because you have clear vision by the view finder while a SLR is very difficult to focus (if not impossible) with an opague IR filter.
    Couldn't one determine/estimate the exposure using an SLR, focus+adjust for IR without the filter, then put the filter on for the actual shot?

    Thanks for the film and development tips.
    WYSIWYG - At least that's my goal.

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  3. #13
    RobertV's Avatar
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    Yes, you can, but every time you have to unscrew and screw your filter again.
    One of the reasons HIE was populair for SLR useres because you could generate the Wood effect with a simple red filter with this film and here you still have a pretty good sight by the SLR finder.

    In this way a TLR or rangefinder is the best camera when using the opague IR filters together with the actual IR films available.

    My TLR: Yashica Mat 124-G with the bay I Yellow and IR RG715nm filters:


  4. #14
    stradibarrius's Avatar
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    Are you setting the ISO on the camera at 25? If the ISO is set at 25 can I just use the meter readings to set exposure?
    "Generalizations are made because they are generally true"
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  5. #15
    RobertV's Avatar
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    You could do that but I am using my handheld Gossen Lunasix-3 because the EV is much wider and you can set from iso 0,8 - iso 25000.
    For the Rollei IR 820/400 I set the meter to iso 12 and for the Rollei Super Pan 200 iso 6.

    You never know the E.I. exactly because you can not measure IR light with the meter. I assume it's the same like visible light but of course this is not the case.

    Here are the data sheets for both Rollei films and the developing table:

    http://www.fotohuisrovo.nl/documenta...lleiIR-400.pdf

    http://www.fotohuisrovo.nl/documentatie/Superpan.pdf

    http://www.fotohuisrovo.nl/documenta...ei%20films.pdf

    Both films are made by Agfa Gevaert in Belgium for the Rollei-Maco company.
    Rollei High Speed/AM74 is a good fitting semi compensating developer for these films however each semi compensating developer is suitable for IR photography.

    It's not rocket science. Once you have to do it and have the same experience of this interesting field of photography. You have to deal with a few practical "problems".

  6. #16

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    Quote Originally Posted by stradibarrius View Post
    Are you setting the ISO on the camera at 25? If the ISO is set at 25 can I just use the meter readings to set exposure?
    Roughly, sure, but if you're metering visual light, the reading won't really reflect the amount of available IR light very accurately. It varies with time of day, for one thing---at morning and evening, there's more IR relative to the amount of visual light than at midday. (Stands to reason---same mechanism that makes sunsets and sunrises red.) Visible light scatters more than IR, so if you meter something that's lit indirectly, it will read brighter in the visible spectrum than in IR.

    But like everything else in photography, it comes down to "think about it and understand how light works". It's just that in this case it's light you can't see.

    I've always used the Efke IR film rather than Rollei---the Efke has more extended sensitivity, I believe---but I found it to be *much* easier than I was afraid of when I first picked it up. You have to guess at exposures a little more than you normally would, which means you should bracket and experiment to figure out what works in practice. If you ask me, that's half the fun.

    Metering *through* the filter sometimes works, too. Different meters probably have different levels of sensitivity to IR, though, and again some experimentation is called for.

    TLRs are great IR cameras, not just because you don't have to look through the taking lens, but because the leaf shutter is easier to handhold at slow shutter speeds as compared to an SLR. Leaf-shutter rangefinders should have the same benefit.

    -NT
    Nathan Tenny
    San Diego, CA, USA

    The lady of the house has to be a pretty swell sort of person to put up with the annoyance of a photographer.
    -The Little Technical Library, _Developing, Printing, And Enlarging_

  7. #17
    stradibarrius's Avatar
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    Thanks for that now another way to ask the same question...when you load the Rollei IR400 film in your camera what value do you set the camera ISO...400???
    For the sake of this discussion let's say the filter is a 4 stop filter.
    "Generalizations are made because they are generally true"
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  8. #18
    Christopher Walrath's Avatar
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    Man, this is better than I thought it would be. Keep it goin', guys.
    Thank you.
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    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  9. #19

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    Quote Originally Posted by Q.G. View Post
    Doesn't look like wintertime.
    And i bet it's not Holland either.




    If we would write Wood effect, and not 'wood' effect, it would avoid the suggestion that the effect's relation with foliage is why it is called that.

    How about "Would Effect"?

  10. #20
    Toffle's Avatar
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    Quote Originally Posted by jim appleyard View Post
    How about "Would Effect"?
    Or perhaps, "Would affect." (as I'm sure it does... )
    Tom, on Point Pelee, Canada

    Ansel Adams had the Zone System... I'm working on the points system. First I points it here, and then I points it there...

    http://tom-overton-images.weebly.com


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