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K3 Scratched Film without Loop Formers


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#1 Gautam Valluri

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Posted 06 March 2014 - 11:22 AM

Hello everyone,

 

After my previous test footage had scratches, I had taken out the loop formers from my K3.

 

Recently, I had shot a few segments of a film on the same K3 but there seems to be vertical scratch (I believe its called a scoreline?) running through the entire footage.

 

Here's a link to the video on vimeo:

 

 

password: noidastories

 

Any ideas on how this happened? I've been advised that I can have it fixed in DI in a 2K scan and I'm considering that option.

 

But I'd also like to figure out what caused this and fix it in my camera.

 

I'd appreciate your responses.

 

GV


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#2 Gautam Valluri

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Posted 06 March 2014 - 12:37 PM

I think this topic is in the wrong forum. Can a moderator please move this to either 'Russian Gear' forum or 'Filmstock and Processing' forum? (whichever is more relevant).

 

Thanks,

GV


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#3 David Cunningham

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Posted 06 March 2014 - 01:56 PM

Well... with the loop formers gone I'd have to guess it's something on the gate, or the gate/pressure plate itself.  The only other thing I can think of (especially with the breathing it seems to have) is maybe the lever/arm for the film status/film remaining.


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#4 Dom Jaeger

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Posted 06 March 2014 - 09:03 PM

It was standard procedure back when we rented film cameras out regularly to do a scratch test before each job, also something I still do after every camera repair.

Just run some fresh film through the camera, doesn't have to be much, then cut off the unused feed side and put it back in the can. Before removing the film that's been run through the camera, mark where the gate is with a sharpie. Remove the film and carefully study it for scratches on both sides. Depending on where a scratch begins relative to your gate mark you can determine where in the film path the scratch is occurring. Could be a burr in the gate or the pressure plate or something else. Make sure your loop size isn't the problem either.
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#5 Rudy Velez Jr

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Posted 13 March 2014 - 05:45 PM

aside from the light scratch running down the middle, the footage looks great. 


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#6 Rudy Velez Jr

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Posted 04 August 2014 - 09:08 AM

Did you ever figure out the source of the problem


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