8mm Forum: Wanted: Lens Filter to Correct Red Shift

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Topic: Wanted: Lens Filter to Correct Red Shift

Michael Lattavo
Expert Film Handler

Posts: 160
From: Canton, OH, USA
Registered: May 2014

posted July 14, 2016 06:20 PM

I've got those same filters Janice - love them!

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Steve Klare
Film Guy

Posts: 7016
From: Long Island, NY, USA
Registered: Jun 2003

posted July 17, 2016 10:42 PM

I got mine the other day. I'm pretty impressed!

Once you get past the expectation that this will take your red-faded print and make it instant Kodachrome, they do make a substantial improvement. This is compromise: better, never perfect.

Basically what I see happening here is it seems to turn red more into brown. What I liked is it did a pretty decent job correcting a classic red-print problem: Planet Earth in a red-faded film doesn't have blue skies: they are gray. Now, they are actually blue again: maybe not noon in the Caribbean, but at least a Winter afternoon in Canada kind of blue.

The colors are muted. In many a red faded print, the reds are spectacular...now, not so much. You lose some brightness on screen, but then again, a faded print is actually brighter than it really should be to begin with.

I have a fairly red print of "When the North Wind Blows". I ran it this weekend with the filters: picking and choosing. I reached the point where what was on screen looked pretty good. What is telling is when I took the filter off and saw what the print really looked like, I put it back right away!

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All I ask is a wide screen and a projector to light her by...

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George Seaton
Junior
Posts: 29
From: Liverpool, UK
Registered: May 2016

posted July 18, 2016 07:36 AM

I've been very happy with my set, they have noticeably improved the colour of pink and fading prints. As an added bonus they also sharpen up 3D, I have the Universal 8 3D 400' digest of 'Creature From The Black Lagoon' and the Gill-man swims out of the screen in all his pin sharp glory again.

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George

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Douglas Warren
Master Film Handler

Posts: 282
From: West Chester, OH, USA
Registered: Feb 2008

posted July 18, 2016 07:49 AM

I too have a set (for my Kodak Pageant 16 mm projector) and they're very good. I plan on getting more made for some of my other projectors ( Super-8 & 16 mm.)

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Turn out the lights,the movie is starting!

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Mathew James
Jedi Master Film Handler

Posts: 740
From: Hamilton, Ontario, Canada
Registered: Dec 2014

posted July 18, 2016 12:54 PM

Rick contacted me last week and is making one for my elmo this week. I am gonna use it on my 1.1 elmo lens which measures 15cm circumference(1 3/4" diameter), which is 45mm.
I cannot wait to get these and try them out!

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Cheers,
Matt 📽

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Douglas Warren
Master Film Handler

Posts: 282
From: West Chester, OH, USA
Registered: Feb 2008

posted July 19, 2016 04:14 AM

Matthew, I think you'll be very pleased with your set. As Steve pointed out, once you use them on a film and them remove it, the difference really stands out!

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Turn out the lights,the movie is starting!

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Mathew James
Jedi Master Film Handler

Posts: 740
From: Hamilton, Ontario, Canada
Registered: Dec 2014

posted July 26, 2016 12:48 PM

So exciting!
Just found out today Rick finished with the color correction filter set and it is on its way!!!

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Cheers,
Matt 📽

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Mathew James
Jedi Master Film Handler

Posts: 740
From: Hamilton, Ontario, Canada
Registered: Dec 2014

posted July 29, 2016 01:14 PM

My kit from Rick arrived today with the 3 cyan filter pieces.
I already tried it on the mysterious Island and the improvement was DRASTIC in my case!! The kids said 'Woah!' when i put it on and took it off, back and forth...you can really notice. I will fiddle with the right combo for whichever films need this.
I love this perfectly fitting lens cap.
Thanx for recommending this Janice!

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Cheers,
Matt 📽

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Janice Glesser
Film Goddess

Posts: 3468
From: Sunnyvale, CA USA
Registered: Sep 2011

posted July 29, 2016 01:45 PM

Fantastic Mathew! [Smile]

So glad to hear the filters are working for you. Any improvement in the color quality just extends the viewing life of our film collection...AND if the kids like it...well...that's all the endorsement you need [Smile]

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Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

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Joe Taffis
Phenomenal Film Handler

Posts: 1592
From: United States
Registered: Jun 2003

posted July 29, 2016 02:17 PM

After reading the reviews here, I ordered a set from Rick too! I have three or four prints that have fading colors. Looking forward to screening them again now [Smile]

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Joe Taffis

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Douglas Warren
Master Film Handler

Posts: 282
From: West Chester, OH, USA
Registered: Feb 2008

posted July 29, 2016 02:40 PM

Great news and glad that you're pleased with your set! I too got mine in the other day for my Eiki 16 mm projector. I ran a print last night (an episode of "The Rat Patrol" TV series) and it really does make a difference.

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Turn out the lights,the movie is starting!

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Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted July 29, 2016 04:57 PM

It won't return true colour of any film of course, but just as Douglas has pointed out quite correctly, if you have enough lamp power to make the projected image vibrant while beaming it through a series of filters, it does improve the overall colour balance of red projected film even if never likely to completely and realistically restore any film to its former glory.

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"C'mon Baggy..Get with the beat"

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted July 30, 2016 01:37 PM

I readed somwhere that xenon bulbs are a little bit blue and that it improves pink films, which I think hard to believe. Has anyone noticed that ?

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Dominique

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Janice Glesser
Film Goddess

Posts: 3468
From: Sunnyvale, CA USA
Registered: Sep 2011

posted July 30, 2016 02:10 PM

Yes, the brighter the bulb the better the filters work. I mainly use the filters on my 16mm projector. I was using a regular 250W HCL bulb on my Elmo 16CL with decent results. But, it wasn't until I replaced the bulb with a HCL-HL that I saw a significant improvement in color and brightness with the filters. The HL version cost a lot more...but the results are well worth it.

Dominique...I've never used Xenon bulb...but if the hue is blue/green then it seem logical that it would improve red tones.

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Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted July 30, 2016 02:25 PM

yes, Janice. What would surprise me is that xenon bulbs are "blue". Wouldn't that affect the colours of the "normal" films ?

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Dominique

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Janice Glesser
Film Goddess

Posts: 3468
From: Sunnyvale, CA USA
Registered: Sep 2011

posted July 30, 2016 04:11 PM

Theoretically yes Dom. I use a 85B (orange filter) on my camcorder when capturing non-faded images from my MovieStuff Telecine Projector. It has an LED lamp that has a blue/green tint and the orange filter does a good job of neutralizing the colors. I guess it just depends on how severe the lamp changes the film color. It may not be significant enough to be noticed.

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Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

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John Hermes
Expert Film Handler

Posts: 139
From: La Mesa, CA, USA
Registered: Nov 2008

posted July 30, 2016 04:55 PM

I've had both Marc 300 and xenon projectors. They do not appreciably help red prints. They put out a bright 5500 degree Kelvin blue-white light which gives a vibrancy to unfaded colors, but really doesn't help red or pink prints very much. I suppose if a film were just starting to shift toward red, xenon could help a bit.

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John Hermes

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted July 30, 2016 05:10 PM

Thanks for both answers. Following what you say, Janice, about the fact that the brighter the lamp is, the best the results are with a filter, a xenon lamp and a filter gives probably the best improvment.

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Dominique

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Steve Klare
Film Guy

Posts: 7016
From: Long Island, NY, USA
Registered: Jun 2003

posted August 05, 2016 11:33 PM

I tried mine with a black and white film that was printed on red faded color stock.

-pretty good!

Not quite black and white, but something more like sepia tone.

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All I ask is a wide screen and a projector to light her by...

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Mathew James
Jedi Master Film Handler

Posts: 740
From: Hamilton, Ontario, Canada
Registered: Dec 2014

posted August 08, 2016 12:35 PM

good observation Steve,
...speaking of black and white, on red stock, or otherwise...,
I am wondering if there is another filter we can use/add that makes the contrast better on b/w films where the faces have whitened a bit. Is there a way to improve that? What filter colour improves contrast?

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Cheers,
Matt 📽

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Janice Glesser
Film Goddess

Posts: 3468
From: Sunnyvale, CA USA
Registered: Sep 2011

posted August 10, 2016 03:55 AM

Photoshop

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Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

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Mathew James
Jedi Master Film Handler

Posts: 740
From: Hamilton, Ontario, Canada
Registered: Dec 2014

posted August 11, 2016 01:25 PM

Steve got me thinking more on this and how colour filters can potentially alter a B/W image...I figured maybe someone had tried some different colours to see what could happen to improve contrast.
Although this pertains to photography, this link is interesting in that some have ventured down this path with some interesting results: Coloured filters for B/W Photography
If i had some gels, i would love to experiment further...

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Cheers,
Matt 📽

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted September 12, 2016 03:44 PM

I tested today the filter with two pinkish to redish scopitones and it did work. The picture is improved. I had a sound problem with my 16 mm projector (I use this one seldom, only for magnetic 16 mm films) so I don't know how the filter reacts with very red films but I certainly don't regret my Investment !

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Dominique

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Roger Shunk
Jedi Master Film Handler