This is topic Room temperature in forum General Yak at 8mm Forum.


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Posted by Robert Crewdson (Member # 3790) on January 12, 2018, 11:51 AM:
 
I have been reading on a Kodak website that cold or lack of lubrication can cause cracks in the perforations. I am currently checking every inch of a film that has a lot of these cracks. All my films are well lubricated, but they are stored in an unheated room, and this year has been colder than we have known for a while. i'm wondering if film should be stored in room temperature for a few hours prior to projecting?
 
Posted by Joe Taffis (Member # 4) on January 12, 2018, 12:10 PM:
 
Hello Robert, I think that's a good idea. I have the same situation with my films stored in an unheated room. I bring whatever films I intend to screen into room temp for at least an hour or so during these colder months...
 
Posted by Tom Photiou (Member # 130) on January 12, 2018, 12:22 PM:
 
The room i use does have heating and goes on with the rest of the house BUT, in the night or through the summer it is a very cool room. I keep meaning to get a thermometer to see what the temperature is. All my films are checked regularly as i do tend to use it most nights and i know every film we have is now guarded with filmguard. [Wink]
 
Posted by Maurice Leakey (Member # 916) on January 12, 2018, 02:00 PM:
 
The BFI at their archive in Berkhamsted store their films at minus 5 degrees Celsius, and at 35% relative humidity.
I can assure you that it's cold, I have been in there!
 
Posted by Robert Crewdson (Member # 3790) on January 12, 2018, 02:10 PM:
 
Thanks Joe, in future I will sort out any film I want to watch and keep it in the living room a few hours. I haven't experienced this before. I also discovered that several of the perforation ends had been broken off; does anyone know what could cause this. I always clean the gate area before use, and use a vacuum with a fine nozzle to pick up any debris that might be lurking .
 
Posted by Joe Caruso (Member # 11) on January 12, 2018, 02:36 PM:
 
No trouble like that - I maintain a cool environment through the warmer months, but now in the winter no split or broken prefs at all - I have sieves, baking soda (my own invemtion towards VS), and maintain a constant low-humidity airflow throughout - Having many boxed films, my work is cut out for me - Shorty
 
Posted by Rob Young. (Member # 131) on January 12, 2018, 02:48 PM:
 
Hi Robert, could you post the website you’ve been reading regarding this as it would be interesting to read.

Thanks.
 
Posted by Robert Crewdson (Member # 3790) on January 13, 2018, 03:48 AM:
 
Hi Rob,
https://www.kodak.com/motion/support/technical_information/storage/handling_of_processed_film/default.htm
 
Posted by David Hardy (Member # 4628) on January 13, 2018, 04:51 PM:
 
I have always let my films come up to room temperature before projection.

I remove them from the cans or boxes and let them breath in the room first.

I always give my projectors a good run first too in order to get them up to speed and remove any chance of condensation that may have settled on the metal gates and runner guides.

[Wink]
 
Posted by Robert Crewdson (Member # 3790) on January 13, 2018, 05:25 PM:
 
I'll do the same in future David.
 
Posted by Tom Photiou (Member # 130) on January 14, 2018, 02:17 AM:
 
David, as you may know, my projectors are permanently set up, but despite this, when i go in to start a show, (if i havnt used the projector for a few days or more), i always switch it on to run for a few minuets just to warm everything up, the condensation in the gate is one i have not thought of to be honest so good point [Wink]
After my shows i dont use the cold PVC covers, i pop a medium size towel over the machine and it completely covers it in the same way a pvc cover does. It may not be an advantage but i feel it does do something to keep moisture from cold air out. Being as anal as i am the towels are all washed every couple of weeks with the rest of the dirties [Big Grin] [Wink]
 
Posted by David Hardy (Member # 4628) on January 14, 2018, 06:31 AM:
 
Robert... it is a good habit to get into before a show.

Tom ... Even in the Cinemas every morning we would always warm up our projectors by giving them a good run after first giving them good clean and any maintenance as required.

We did this in all seasons of the year.
[Smile]
 


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