8mm Forum: Color filters

This is topic Color filters in forum 8mm Forum at 8mm Forum.

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Posted by Gary P Cohen (Member # 4417) on January 28, 2018, 08:21 AM:

I have a number of 400' cutdown that have faded in various degrees. There has always been a debate as to whether or not color filters can bring out some of the faded color on prints. I'm willing to give it a try - can anyone suggest a venue, vendor or collector that carries the filters. I also have access to theatrical gels if someone can suggest some color gels to try. Many thanks.
PS - If you think I'm wasting my time, I'd welcome that opinion as well.
Gary

Posted by Joe Taffis (Member # 4) on January 28, 2018, 08:36 AM:

Hi Gary, I've tried the color gel filter set from the seller on eBay. I used the single filters and different combinations with faded and also red films. They do reduce the red to a degree, but also the brightness on the screen depending on how many you're using at one time...
Some folks praise them, but personally I do not. I think "eye of the beholder" applies here [Wink]

Posted by Janice Glesser (Member # 2758) on January 28, 2018, 10:05 AM:

Gary I have had some good results with colored filters. Check out this thread to see some examples. The results vary depending on the films themselves. I have found that the brighter the projector lamp is the better the filters work.

http://8mmforum.film-tech.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=1;t=011328

Posted by Gary P Cohen (Member # 4417) on January 28, 2018, 10:15 AM:

I have both an ELMO ST-1200 and a GS-1200, and my screen isn't too far from them so the image is pretty bright. I inquired of the eBay fellow if he might craft a cap for the Elmo lens, although I see that adapting a bottle cap is fairly easy. If it helps even a few of my prints it'd be worth it. I don't expect a miracle with a totally red print, but I have a few 400-footers where you can see hints of blue and yellow, and if the filters give that a boost, I'll be pleased.

Posted by Brian Fretwell (Member # 4302) on January 28, 2018, 10:18 AM:

The filters work by reducing the levels of the colours left to that of those faded so the greater the fade the greater the total light reduction. The effect on anything that is white is to make it the colour of the filter, hopefully your eyes will adjust to restore the white to something near nuetral.

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