2-PERF FOR KONVAS 1M OR 2M??????
Posted 31 August 2008 - 08:55 PM
perhaps there is another way to do it?
let me know
Posted 31 August 2008 - 09:08 PM
Posted 01 September 2008 - 01:24 AM
Posted 01 September 2008 - 08:02 PM
no, not that simple. Ask Olex about this one, if there is a 1 or 2m converted to 2-perf around he may know where to point you. He might even be able to clear up what exactly needs to be done in order for the conversion to work. I'd imagine quite a bit of machining would need to happen, and not just to the movement but mags as well. AND a new gate. I'm sure it's more trouble than its likely worth....
yer i thought about it after i posted and realized how difficult it would be much harder. you would have to do something to the motor so it doesn't spin around 24 times in a second. also the mirror in the camera would have to spin twice as fast. new gate aswell
trouble trouble trouble but it would be awesome
Posted 01 September 2008 - 10:12 PM
Posted 03 September 2008 - 04:20 AM
I don't really know much about those commie cams. But, here's what has to change in the film path: The film has to pull down 2 perf instead of the usual 4. There is often a cam that converts rotary motion into reciprocating motion with the pull-down claw. That cam usually has to be replaced. The drive sprocket(s) are what pull the film through to the gate and from the gate. That or those have to run half as fast. If the magazines are geared, they have to run half as fast as well. With Mitchells and Arris, the drive motor has to run at the same speed. It will likely be the same on your commie. With that in mind, it's the gears in between the motor and the film path that have to be altered.
there is a alot of work that would need to be done and would end up costing alot of money. it will cost more money mucking around then i would be saving with film stock and processing etc. i am also told that there will be a problem with telecine as well
Posted 04 September 2008 - 06:47 PM
I have to agree with James, for the cost of conversion, either crop the 2 perf frame out of a 4 perf neg or just shoot 'scope to begin with. With short ends as low as a nickel a foot, it would take a lot of shooting to see the savings unless you're shooting a feature or other long form project.
Then again, you can rent my 2 perf Kinor and forget about all the headaches of ownership .