Re: [Frameworks] DSLR telecine on a JK printer

From: George Monteleone (email suppressed)
Date: Wed Dec 08 2010 - 14:06:56 PST

I can't speak for JK to DSLR, but and friend and I built a variant of the
workprinter, but with better optics. We capture directly off the frame, and
the only glass in the optical path is a high-resolution rodenstock
apo-rodagon enlarging lens to Sony EX1 camera with an HD-SDI out,
uncompressed 1080 signal to blackmagic caputre card. It's basically a
Moviestuff workprinter setup with better optics.

Our transport is just a modified Eiki with a adjustable speed control,
low-wattage bulb, and variable aperture electronically controlled. We
capture using CaptureMate, the same thing the workprinter is designed to
use, frame captures triggered with an opto-resistor triggered by the motor
rotation. It's quite reliable; the only thing to watch for is dust or
occasional jump if the film has bad splices or damaged sprockets. A JK
transport would be ideal, or some kind of pin-registered transport, though
registration on the Eiki at 8fps is ok. Theoretically, and upgrade to
higher quality capture mechanisms (i.e. Red cameras) wouldn't be too tough,
as long as the optics are appropriate for the chip size.

The quality is better than the workprinter. We've been running it as and
affordable DIY telecine business, but might be planning to sell the system
in the near future. Email me if you're interested in hearing more,
arranging to see some samples, a quick cheap demo transfer, etc.

email suppressed

On Mon, Dec 6, 2010 at 4:04 AM, <email suppressed> wrote:

> i have done that several times a longer time ago, but you never know
> when the shutter rips off, so if you calculate yourself after 20000
> clicks about the possibility the in the middle of the project it kills
> itself you can do that very easily. you have to have a replace-camera in
> your repertoire and looking forward for replacement costs of 100-200
> bucks each time ... and a lot of nerves ;) but then it works. of course
> a 5d will stay longer as a 500d, but i would rather use the cheap one
> for that job ... nowadays i only use that for making telecine of
> finished works and not for production process anymore...
> On Sun, 5 Dec 2010 22:36:41 -0700, jeanne LIOTTA <email suppressed>
> wrote:
> > they are doing that at my school. But you have to watch
> > out--perhpasreplace the camera fairly regularly since they werent
> > really made for that kind of frame-clicking volume. Its tedious, just
> > like any optical printing, no? but with a controller interface you
> > trust maybe you can just go out for coffee or take a nap.
> > another one of the million workflows....
> >
> > On Sun, Dec 5, 2010 at 6:04 PM, John Woods wrote:
> > Anyone doing film transfers on a JK optical printer with a DSLR?
> > Particularly of
> > S8 or 16mm colour negative? Seems like the most tedious way to
> >
> > transfer film but the potential quality it presents intrigues me.
> > Thx.
> >
> > John Woods
> >
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