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Thread: Quick and Dirty Lens Caps

  1. #1
    Roger Thoms's Avatar
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    Quick and Dirty Lens Caps

    Wow it’s been a long road but I'm finally ready to take my recently acquired Gundlach Radar 8x10 f6.3 lens out and actually photograph with it. The lens was a Craigslist purchase and came with a Ilex No. 5 which needed a CLA because the low speeds were hanging up. It took a little time but I was able to get the shutter serviced by Carol at Flutot’s and the shutter is purring like a kitten. In the meantime I bored out a lens board for the mounting flange and it mounted. So now it need a a shutter release cable, no problem I have at least a dozen, but none of the have a long enough throw to fire the Ilex No. 5. So after a little research I determine that a Gepe Pro will probably work. Order the Gepe Pro and wait for it to arrive, then test it and yes it fires the Ilex just fine. Now it’s Sunday morning and I thinking let go try out the lens, dig around in RPT stash and find the perfect case for the lens. But wait the lens doesn’t have any lens caps and the glass is coated and in really nice condition. No problem I’ll make a couple of quick caps to use until I find the time to make nice leather one.

    I used card stock and PVA glue to make the caps and then covered them with the Tesa tape the Tin Can mentioned in the bellows tape thread. The tape is nice quality cloth and is quite thin. This allowed me to simply put a piece of waxed paper over the lens secured with a rubber band and then use the lens as a form to make the cap. The caps turn out nice enough that I doubt I’ll make leather ones to replace them.

    I should add that my film drying cabinet worked great for drying the PVA glue and I’ll give the caps some time out-gas before I start storing the lens with them on. I didn’t get to photograph with the Radar today but I should be all set now.

    Roger



    Last edited by Roger Thoms; 20-Mar-2022 at 18:30. Reason: Added info

  2. #2

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    Re: Quick and Dirty Lens Caps

    Just out of curiosity, do you know that the glue won’t out gas?

  3. #3
    Roger Thoms's Avatar
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    Re: Quick and Dirty Lens Caps

    Quote Originally Posted by Bob Salomon View Post
    Just out of curiosity, do you know that the glue won’t out gas?
    I wasn’t sure about the PVA glue so that’s good to know. I’m also unsure about whether or not the adhesive on the Tesa tape will out gas. So I figured it would be good to wait a few weeks and just use the caps when I go out shooting. Of course most of the tape is on the outside so it’s probably not an issue.

    Roger

  4. #4

    Re: Quick and Dirty Lens Caps

    PVA is a good choice. It does not typically off gas after drying. That is why it used used in bookbinding and repairs.

  5. #5

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    Re: Quick and Dirty Lens Caps

    If I'm lacking a lens cap, sometimes I'll take a filter container apart, put the two on either end of the lens, and then hold them in place with a rubber band.

    I'm never lacking in rubber bands, because I also use them on film holders to keep the darkslode closed.

  6. #6
    Tin Can's Avatar
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    Re: Quick and Dirty Lens Caps

    I like built in lens caps and found fits

    The KODAK Bullet Safe light is a favorite. I have 6 in operation as Red LED and one for bed reading lamp

    KODAK Lens Cap 900 Jena by TIN CAN COLLEGE, on Flickr

    Jena 900 by TIN CAN COLLEGE, on Flickr

    KODAK SAFE LAMP LENS CAP by TIN CAN COLLEGE, on Flickr
    Tin Can

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