From: EclairACL@topica.com
To: EclairACL@topica.com
Subject: Digest for EclairACL@topica.com, issue 593
Date: Sun, 01 Feb 2004 04:07:03 -0800
-- Topica Digest --
Re: homemade workprinter
By wramsey@bju.edu
------------------------------------------------------------
Date: Sat, 31 Jan 2004 16:09:01 -0500
From: "Wade Ramsey" <wramsey@bju.edu>
Subject: Re: Eclair Cameras: homemade workprinter
Haven't tried that. We have an Eiki telecine, which is just an Eiki 16mm
film projector that has had a video pickup installed in place of the
projection lens. It's not so hot. It really doesn't have adequate image
controls.
Wade K. Ramsey, DP
Dept. of Cinema & Video Production
Bob Jones University
Greenville, SC 29614
>>> rockanroll@everyday.com 01/30/04 15:28 PM >>>
Hi Wade,
I´m sorry but i think i didn´t do the proper question.
What i want is to modify my projector to telecine like "workprinter" units.
As it seems you have a more technical knowledge than i so maybe you can
help me
Thanks
fulgencio
>
>
> >I have a 16mm proyector that i d like to modify to do as a
> "workprinter".
> Could anyone tell me how can i do this?<
>
> Depends upon the projector. Basically, it has to be able to run bipack
> through the gate (original and raw print stock.) If it can't do that,
> forget it. You can test that aspect by interleaving a long length of
> old film stock with another and wind them together on the same reel.
> Feed them through the gate and onto the takeup. If the bipack won't
> feed through the gate smoothly, or the drive sprocket teeth are too
> shallow to feed the film in and out, it isn't going to work.
>
> If it does, then you'll want to do some tests on old film to see
> whether or not the gate will scratch your original, since the bipack is
> twice the thickness the gate was designed to take.
>
> If it passes these tests, you'll need to rig the lamphouse with a much
> smaller lamp on a rheostat to control exposure. I'm assuming you want
> to print B&W. If you are trying to do color you are going to have an
> issue with the color balance of the source, especially when dimmed by
> the dimmer.
>
> You can either workprint relatively short lengths by laboriously
> interleaving them with print stock in a darkroom, or designing a
> separate supply and takeup system for the stock so you can do longer
> rolls. The projector will have to be used in a darkroom and you'll
> also have to mask off any light leaks.
>
> We did this successfully in the 60s with an old RCA sound projector.
>
> Wade K. Ramsey, DP
> Dept. of Cinema & Video Production
> Bob Jones University
> Greenville, SC 29614
>
>
>
>
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End of EclairACL@topica.com digest, issue 593