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Topic: Recording in Sync on RM8008
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Andrew Woodcock
Film God
Posts: 7477
From: Manchester Uk
Registered: Aug 2012
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posted August 24, 2016 04:22 PM
ok Stuart, here is just my personal slant and set of experiences of using the RM 8008.
I know many others have used this editor and so I too would be most interested in hearing their personal experiences of these machines in use, especially if anyone ever bothered purchasing the Pedro board for one of these to use with his deluxe sync console.
the first thing I'd say is it is an editor and not a projector.
Where this scores well to begin with is it allows you forward and reverse motions of your films, at speed with ease and without any risk of damage to our precious reels of films unless you crank ridiculously fast with the head still loaded.
(There are various modes to back wind a sequence.)
This gives it a huge plus over nearly all but the very most gentle and well configured projectors out there.
Because this is an editor and not a projector, it only scores down on a projector on one factor, but nevertheless a huge factor when it comes to synchronized recordings.
That is of course, that as an editor, it is sprocketless.
Because it's sprocketless it means it relies solely on the accuracy of the speed of the capstan driven spindle AND the friction it generates against a nice large free wheeling rubber roller that sandwiches the film to the capstan.
When a film is bone dry, it works rather well, well at least for 200ft runs, it does.
Anything longer and of course no matter how accurately a steel roller is being driven by a an accurate D.C. motor..other factors begin to kick in such as friction and slippage etc.
These factors or losses become very difficult to either predict or control even with the variable speed control simply because frictional losses are never linear or consistent.
Use any kind of cleaner or lubricant on your films before attempting to record with this editor, and you really would struggle to even keep sync or any kind of constant precise speed for even 200ft of film!
It's a great editor, the stereo sound achieved from one of these is up there with the very best of em, No doubting that!
But..and here is the but..while ever you are trying to achieve a constant synchronized speed to a pc with some kind of software that allows variable audio speed from your pc, then you really need sprockets for any recording of 200ft length or longer to maintain lip sync.
Even with the Pedro box and board attached to one of these, it may well drive the capstan roller at Quartz Crystal Sync accuracy, but that cannot guarantee that your film transports through that drive system with the same degree of accuracy while ever you are solely relying on friction of a smooth roller set up to do so!
You simply have to have accurately driven sprockets, which of course, no editor does sadly
[ August 24, 2016, 11:44 PM: Message edited by: Andrew Woodcock ]
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"C'mon Baggy..Get with the beat"
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