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  • Modifying the Lens mount

    This link is to a B4 to EF adapter .. have a look at the images.
    Maybe something like this can be done to our Cinema Cams .. will need a closer look at the mount

    http://www.ebay.com/itm/B4-2-3-ENG-F...item3a6ebc69ee

  • #2
    blackmagiccinemacamera.jpg

    From this smallish image looks promising

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    • #3
      And here is a PL to EF adapter that also has some promise
      http://www.ebay.com/itm/Angenieux-Co...item3cbdfd0f49

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      • #4
        Originally posted by Kavadni View Post
        And here is a PL to EF adapter that also has some promise
        http://www.ebay.com/itm/Angenieux-Co...item3cbdfd0f49
        Does anyone know how the rear end of the Red Pro Primes or Cooke S4s compares to the rear end of the Zeiss CP.2s? Are they fatter/longer/shorter/small/comparable?

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        • #5
          You won't have the mirror interference issue with the BMC since it doesn't have one. B4 adapter doesn't seem to practical though. No optical element to correct the lens for focal plane sensor vs 3 sensor prism block.

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          • #6
            Originally posted by Kavadni View Post
            This link is to a B4 to EF adapter .. have a look at the images.
            Maybe something like this can be done to our Cinema Cams .. will need a closer look at the mount

            http://www.ebay.com/itm/B4-2-3-ENG-F...item3a6ebc69ee
            Originally posted by Kavadni View Post
            And here is a PL to EF adapter that also has some promise
            http://www.ebay.com/itm/Angenieux-Co...item3cbdfd0f49
            Awesome

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            • #7
              Originally posted by Grug View Post
              Does anyone know how the rear end of the Red Pro Primes or Cooke S4s compares to the rear end of the Zeiss CP.2s? Are they fatter/longer/shorter/small/comparable?
              If the Cooke's work than the CP.2's should work. Not sure about the Super Speeds or Ultra Primes tho.

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              • #8
                Originally posted by Brian@202020 View Post
                If the Cooke's work than the CP.2's should work. Not sure about the Super Speeds or Ultra Primes tho.
                Fingers firmly crossed - one PL camera mount is a hell of a lot cheaper than 6 EF lens mounts for the CP.2s!

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                • #9
                  "The PL replacement need to be mounted permanently.
                  Changing the mounts many times will destroy camera body!"

                  hm...worth it?
                  C300 review | http://carousel.hu/c300/

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                  • #10
                    Originally posted by laco View Post
                    "The PL replacement need to be mounted permanently.
                    Changing the mounts many times will destroy camera body!"

                    hm...worth it?
                    To some people and some rental houses yes, for me, no. I think what this means is it'll open up a world of possibilities for some productions. If I had 2 bodies, one would definitely be PL.

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                    • #11
                      Hmmm, mildly interesting. It says that that PL mount can only be used on the 7D, 60D, 550D/t2i, and 600D/t3i. So in all likelihood it won't work on the BMC as-is, but maybe they could be convinced to make a custom version.

                      As far as the Compact Primes go... based on their graphic measurements, it's a maybe. They show the depth of the silver part of the back of the lens as being no more than 11.2mm allowed, and by my measurement it's the tiniest sliver narrower than 1/2", so probably about 12mm. So it may be a no-go. And for the total depth of the part behind the mount they show a max of 14mm, the Compact Prime is about 14.3mm. So I'm thinking that they probably won't work, using that adapter as designed. But maybe that manufacturer could make a custom version; the pictures on the BlackMagic site do make it look like you could remove the front of the EF mount maybe.

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                      • #12
                        blackmagiccinemacamera.jpg

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                        • #13
                          Originally posted by Grug View Post
                          Fingers firmly crossed - one PL camera mount is a hell of a lot cheaper than 6 EF lens mounts for the CP.2s!
                          So are you saying you have a set of CP.2's with the PL mount option installed? Those may or may not have the same back dimensions as my CP.1's, which are permanent PL. You'd have to look at the back of your lens. Does it look like the measurements in the adapter's ebay page?

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                          • #14
                            Edit: I looked up the CP.2 brochure, and there's a picture of the CP.2 with the PL mount, and it looks exactly like mine, so ... I would guess the dimensions are the same, and that would mean we're borderline as to whether we could use a mount like that or not.

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                            • #15
                              Originally posted by Brian@202020 View Post
                              If the Cooke's work than the CP.2's should work.
                              That listing doesn't show any Cooke primes working. It shows a couple of Cooke zooms, but no primes. And zooms are a whole different ballgame. The only real primes they show on the list at all are Red Pro primes; I don't know about those Canon or Nikkor lenses but the Red Pros are the only recognizable modern or widely-used lens set I saw on there.

                              The pictures on CookeOptics.com show the S4's and S5's and Panchros all with what looks like exactly the same rear mount situation as on the Compact Primes.

                              Then again, as far as the Red Pro Primes, it's inconclusive so far. The only picture I could find that showed the rear of the mount, was of the 18mm, and it looked comparable to the CP's, and the adapter PL mount page specifically said Red Pro Primes would work... but, on the Red store's page for the battle-tested primes (where the picture was) it also says that the 18mm (the only one I found a picture of) has an extended rear flange; the quote is:
                              The extended flange on the 18mm RPP will not work on some shutter based film cameras
                              So maybe the other Red Pro Primes have smaller backs and that's why they work?

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