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Any ideas for filtering tiny switars?

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  • Any ideas for filtering tiny switars?

    I have a 15mm 2.8 (Kern-Paillard Yvar) That would truly make the Pocket camera live up to its name. It would make a great walk around lens but for the fact that it would be impossible to ND. It doesn't have filter threads and even if it did its only about the size of a quarter, even 52mm would look enormous on it. The size of the 25mm 1.4 is a little more manageable, but still unthreaded. Are there any sort of thread adapters that would clamp onto the front ring of these vintage lenses?

    Also does any one know the the filter size of the arriflex-cinegon 10mm, it seems bigger than 49mm but smaller than 52mm, an adapter that would go to 52mm would be great.

  • #2
    You could try a rail mounted filter holder, or one of the Cokin Digi-holders that are attached to a block. Rail mounted would probably work better.

    http://www.ephotozine.com/article/co...er-review-4564

    Not sure what the rail mounted ones are called you'll have to do a search...

    Kind of like this:

    http://www.magic-filters.com/auto_adapt.html

    A matte-box would be the best option but if you are talking about just walking around...
    Last edited by Tim Hole; 10-12-2013, 10:49 AM.

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    • #3
      Usable with standard round threaded filters with a step-up ring. No idea if the dimensions would work for you. If it works, you could saw and file away the unnecessary parts:

      http://www.bhphotovideo.com/c/produc...FOR_RAZOR.html

      You might even be able to just take that front filter holder and mount in onto an Arca (stills clamp standard) rail. In fact, I would do something like that if I needed a holder. Hmm, since that Kowa 6mm is looking good I may look into it. I definitely want to avoid the rail/mattebox route for my pocket setup.

      EDIT: I just noticed they sell just the front piece in a 52mm size. May be the solution, plus a few other pieces.
      http://www.bhphotovideo.com/c/produc...plate_for.html

      For other possibilities enter "digiscoping adapter" into search.

      I've emailed Really Right Stuff to see if they plan to or are interested in making some basic Pocket accessories. There's also the guy on eBay, Hejnar, who will do custom work.
      Last edited by Steve Wake; 10-12-2013, 01:21 PM.

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      • #4
        You can buy old filters and filter holders for vintage lenses on Ebay. But likely they aren't going to be the best standard compared to modern technology.
        The easiest solution I've come up with so far is some kind of filter holder, but then that adds to your rig's bulk.

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        • #5
          If you haven't been following the Kowa 6mm thread, here's exactly what you asked for (the pdf makes it more clear): http://www.midopt.com/acc_slipmount.html

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          • #6
            Thanks, the machine vision slip on rings are probably the best bet, then step up from there. Any kind of mattebox or rigid filter holder would be impossible to use with the lens I'm describing. It is literally no more than the width of my finger from the base to the front ring, and only the diameter of a quarter, pulling focus is nearly impossible as it is.

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            • #7
              Originally posted by dop16mm View Post
              Thanks, the machine vision slip on rings are probably the best bet, then step up from there. Any kind of mattebox or rigid filter holder would be impossible to use with the lens I'm describing. It is literally no more than the width of my finger from the base to the front ring, and only the diameter of a quarter, pulling focus is nearly impossible as it is.
              +1

              the Switars are tiny, my fingers keep getting in the shot trying to focus lol - I'm going to order the slip on rings for the Kowa and will probably get a smaller one for the Switars

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