S8 Pressure Plates - K40 vs Kaccema vs Scoopic

[S8 Booster]

Just wondering if anyone has experimented with adjusting the pressure on the pressureplates of 16mm alt S8 reloadable Kaccemas? That is to optimize the image stabilisation.

This is actually possible to adjust on the Russian reloadable Kaccema cartridges as well.

I found big differences in the pressureplate pressure in between the various Kaccema cartridges.

I did not test them against eachother yet - I want a better measure method but I did an "evaluation" between the two which came out as this:

Original silent K40 cartridge:................................................120g (Approx)
Kaccema silent cartridge:.....................................................350g (Approx)
Reference adjustable pressure on the Canon Scoopic 16:...40-50g

Do not put too much weight! on the figures for the S8 carts but the difference factor x beween them is quite right.

I will find an old fashion mechanical weight to control every cart I have to compare the data later.

Anyone looked into this previously?


R

[Santo]

I've wondered a lot about these reloadable Russian carts. How do you load them? In complete darkness, I guess? How easy is it, anybody?

You've used them S8Booster, are the images pretty stable? I'm wondering about film that's not the too stiff for s8 cart polyester base Fuji slide stock. Rather Kodak or maybe cut down 35mm Fuji motion picture stock (if it's not polyester). It seems like there's a significant increase in pressure from what you just posted. I just about ordered an Andec pressure plate tonight but I'm still stalling a bit. Likely I will so this might not be an issue, but I'm very curious about these Russian carts.

[S8 Booster]

I have yet to shoot with them but have loaded and run them with some Agfa outdated film. The loading is usually done in a black light proof bag (or room). The initial run impression is very good and the metal pressure plate seem excellent.

The Andec pressure plate could not provide stability with the Provia F40D with either the Canon 1014 XL-S or the Nikon R10 (Mismatch).

I would try to use the Russian carts before going for the frame Master if using a non standard S8 stock.

The Provia is really something special for S8 whatever the base material is

Carlos on this site has used the Russian carts a long time and seem very satisfied with them.

R

[Marius]

I havent looked into this, but find It very intresting now that you bring It up here. I would like to see further results on this subject. I always keep the pressurplate on the Scoopic 16M as tight as It get, I have It like that when I load the film and shoot the film. If I can improve the image stabilisation with adjusting the pressurplate some how I wold sure like to know. I would always guess that a pressureplate should press as hard as possible almost to keep the film in line and tight so It wont move?.

[S8 Booster]

The maintenance manual says 40-50g which probably is ideal for registration and wobble free transportation over the gate.
There is a theoretical possibility that the image may get unstable again with too hard pressure.

50g is not a lot.

R

[aj]

I've wondered a lot about these reloadable Russian carts. How do you load them? In complete darkness, I guess? How easy is it, anybody?

It is not too difficult if the filling material is prepared properly. I.e. like the original Svema fills. With a core ring and wound tight so that it can be handled and the windings do not sag out.

I recommend to handle them in a darkroom. A changing bag is a bit too cramped and gets damp quickly when you are in there with your hands.

Here you can see some pictures from the instructions prepared by Olex. He is also selling the things. These come from old stock or flea-markets or something like that I guess.
http://www.geocities.com/russiancamera/ ... manual.htm

[Santo]

Thanks, Andre, S8 Booster. I just emailed him about prices on these things. They don't look all that tough to use -- with a practice run or two I think.

Of course perfed and cut film all set up nicely on core rolls like that is the big trick. I'll have to explore that possibility and get firm answers and prices before I decide on investing in a pile of reloadable carts. That and developing possibilities and costs. Any black and white is no problem and cheap, so the lab I use says, colour it might depend.

But I sure like the idea of both circumventing overpriced Pro8 and opening up a world of the latest film stocks that seem to be so promising for super 8. And researched and planned and done smartly, I think maybe you don't have to really spend a whole lot of money doing it.