Film-Tech Forum ARCHIVE: Port glass and lens cleaning

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Topic: Port glass and lens cleaning

Monte L Fullmer
Film God

Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004

posted 01-02-2008 01:23 PM

..one could create baffles in front and back of an open porthole and that really cuts down booth noise from exiting down to the seats....

Case in point: my 6plex has the Kelmar port window setups with the glass that has the magnetic strips to hold the the glass in place over the projection port and the viewing port.

One of the floor goons came upstairs one day, took out the projector port glass to holler down at one of the fellow floorstaff. He put the glass back in, but didn't do it right where it fell out and shattered when it hit the floor.

While the glass was being replaced, I took strips of cardboard measured so it would just touch the edge of the light bean from the projector, and taped these strips to both the inside of the port frame and the booth side of the port frame - creating a double baffle which really eliminated booth noise from exiting out into the auditorium.

I was ALMOST tempted to leave this setup like this since I did get a slightly brighter picture being that the light was now firing directly to the screen and not being diffused through glass. But, with my makeshift setup of just being taped up, I know that it would fall down on someone and they wouldn't know, (or care) how to fix it back to place.

-Monte

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Ed Alvarado
Film Handler

Posts: 60
From: Fort Worth, TX,usa
Registered: Oct 2004

posted 01-10-2008 03:01 AM

so whats the best to use??

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