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Thread: BTZS Focus Cloth Use

  1. #1

    BTZS Focus Cloth Use

    I recently ordered a 4x5 Beynd the Zone System focuse cloth and I have a few que stions. When using a loupe on the ground glass where do I insert my hands into t he hood? Do I put them in the same hole as my head or do I have to detach the el astic part? I am also wondering the same about film holders. Any help is appreci ated. Thanks in advance.

  2. #2

    Join Date
    Mar 1999
    Posts
    100

    BTZS Focus Cloth Use

    For your hand, make a separate small opening in the velcro near the ground glass (to keep too much light from getting in). Film holders go in after the dark cloth is removed from the camera (same as with a regular dark cloth). After you get used to the BTZS cloth you'll probably love it, as I do.

    Cheers!

  3. #3

    BTZS Focus Cloth Use

    I don't have an origional Zone VI dark cloth, but rather a homemade one using a similar design. When checking the GG with my loupe, I use the same opening as for my head because a small amount of light at that point won't deteriorate what I see through the loupe.

    The film holders are inserted after removing the darkcloth, but in bright sun, I re-mount the dark cloth AFTER inserting the film holder to prevent the direct sunlight from hitting the camera back and filmholder. You can never be too careful when it comes to light leaks.

  4. #4

    BTZS Focus Cloth Use

    I just got the BTZS dark cloth, my first dark cloth (my camera has folding hood), but haven't had much time to use it, but found myself making a separate arm hole through the velcro to use the loupe.

    I discovered that it appeared that I'd have to remove the dark cloth to take the picture. That really annoys me - another piece of equipment that I have to lay down or hang somewhere. I wonder why it hadn't occurred to the manufacturers that a dark cloth would be used with the camera and provide some sort of lipped frame around the glass to facilitate attaching one - one that would not have to be removed to take the picture.

  5. #5

    BTZS Focus Cloth Use

    Since you only read good things about the BTZS dark cloth on this forum, I feel I should add my one major criticism of it after one year of use. In cold weather (below freezing) it is *much* harder and less pleasant to use because (i) the material becomes very stiff and (ii) it does not breath at all, leading to serious condensation problems from just the heat of my head and hands (I hold my breath as that really is a disaster). I will be making a cloth soon for winter use!

  6. #6

    Join Date
    Nov 1998
    Posts
    339

    BTZS Focus Cloth Use

    > cold weather

    Otoh, here in Florida it works pretty well in keeping the deerflies, mosquitos and no-see-ums from getting up under the darkcloth with me. <g>

  7. #7

    Join Date
    Mar 1999
    Posts
    100

    BTZS Focus Cloth Use

    Agreed, nothing's perfect, but to me the BIG advantage of the BTZS cloth is the amount of light it blocks. Regular cloths seemed to work ok w/ 4x5, but were pretty miserable on larger cameras (too much light coming in from the bottom, and I spent most of my time trying to hold the damn thing closed underneath). The BTZS cloth just seems to make the image on the ground glass much brighter, and it frees up your hands to focus and hold a loupe.

    Cheers!

  8. #8

    BTZS Focus Cloth Use

    This doesn't answer Paul's original question, but I have had the same problems Richard has had with my BTZS focusing cloth in winter use. To solve the problem, I've used my old standard dark cloth in cold weather by tying a shoelace to two of the ends, drape the tied ends over the camera so they hang down over the tripod then secure the top with a binder clip to the front standard of the camera. The tied ends keeps the cloth from flapping in the breeze and the clip secures the cloth and keeps in from sliding off the camera.

  9. #9

    BTZS Focus Cloth Use

    I use the BTZS focus cloth since last Summer and like a lot except for its propensity to increase condensation of the ground glass in cold weather. What I like about it is: reduces the amount of light inside, allows freedom of both hands for camera and loupe operation, and resists quite well to windy conditions.

  10. #10

    Join Date
    Sep 1999
    Posts
    449

    BTZS Focus Cloth Use

    After focusing and all that stuff, don't take it off the camera to make your picture. Just unzip the velcro and fold the whole thing forward over your bellows, till you insert the CFH, then flip it back over the back to lessen chances for light leaks.

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