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RE: Eclair ACL ACL extension tube
Do you think the extension tube made for the CP-16/GSMO would work? I
know there was some cross compatibility between the CP finders and the
later Eclair removable viewfinders. You might actually need the CP
orientable finder to use the tube, but I believe those viewfinders will
fit the NPR and ACL as well.
Either way it would be a handy item to have for the ACL.
I received the following e-mail: "Is there an extension viewfinder for
acl or an adapter for an Arri extension?" <A
Here was my response. Anyone else have any info?
I'm not aware that any extension tube was made for ACL finders, since
and finders were intended for hand-held, documentary use. I've always
intended to build one. If you open up the finder housing, you'll find
eyepiece is being held in place with a retaining ring. Loosen the ring,
is tightened to an extreme, and then just epoxy it back in place. Now
unscrew the eyepice when you want to. Now experiment with a cardboard
and a lens inside. When you find the right focal length lens (I was
experiment with an Angie 17.5-68 zoom so that I could zoom in close for
focus, then back out), you'll need to have a tube machined with threads
into the finder at one end, and allow the eyepice to screw in at the
I would guess that an Arri extension could be adapted --- you'd need to
machine rings for either end that will screw into the finder and allow
eyepiece to go in the other end. You might have to play with the
of the lens inside the tube to get correct focus, or possibly the exact
length of your adapters would need to be considered.
Let me know if you get something to work. I'm sure that many an ACL user
would like such a device if someone else did all the R&D and just told
which lens works. Mark.
PS - An NPR orientable finder adapted to the ACL is two inches longer
the ACL finder, so it is like having a 2" extension built in. I'm
auction one on e-Bay soon (with an ACL adapter). I even had an adapter
with threads made for it, ( a fatter tube with the lens inside would
be inserted in the middle), but never got around to experimenting with
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