8mm Forum: Color Correcting with Filter?

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Topic: Color Correcting with Filter?

Vidar Olavesen
Film God

Posts: 2232
From: Sarpsborg, Norway
Registered: Nov 2012

posted August 26, 2013 07:19 AM

He do take some time to send, but I did get both mine

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted August 26, 2013 09:42 AM

Some years ago I worked in a cinema which also had regular stage shows. We used coloured gels for the stage lights and also for our follow spots.

I had bought a 16mm feature which was completely pink and hoped that a colour filter on the lens might help. I took cuts off the rolls of many different gels. But, all to no avail.

I soon realised that if a film had turned to one colour, be it pink, red or brown, the filters would not help.

If a film has colour fade but with still some degree of colours present, filters may assist with some correction.

But such filters are not panaceas.

--------------------
Maurice

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Hugh Thompson Scott
Film God

Posts: 3063
From: Gt. Clifton,Cumbria,England
Registered: Jan 2012

posted August 26, 2013 02:11 PM

True Maurice, but gels do put back some colour that does improve
viewing, nothing worse than an off colour print. The numbers of gels I recommended to Jan, are pale compared to other colours
in Rosco's many varied shades, but do the job of giving flesh tone
and other colours invisible in the pink print, are suddenly there.
I have often thought on the lines of a colour tinted lamp, that
might offset these "colour challenged" prints.

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted August 27, 2013 04:30 AM

quote:
.....and other colours invisible in the pink print are suddenly there

Hugh
Do you really believe that invisible colours can suddenly appear?

--------------------
Maurice

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Vidar Olavesen
Film God

Posts: 2232
From: Sarpsborg, Norway
Registered: Nov 2012

posted August 27, 2013 05:32 AM

Even if you can't see them due to the redness,the blues at least come through better ... Not sure if it's lost all color, but they seem to not be there without the filters.

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Hugh Thompson Scott
Film God

Posts: 3063
From: Gt. Clifton,Cumbria,England
Registered: Jan 2012

posted August 27, 2013 08:15 AM

Maurice, the proof is "in the pudding", I've been using a blue
& yellow/lime combo for years, and yes colours do "appear"
that were suddenly invisible before, are there for all to see.
Try it and see for yourself.

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Roy Neil
Expert Film Handler

Posts: 203
From: Menlo Park, CA
Registered: Sep 2007

posted August 27, 2013 09:49 AM

Projecting onto a screen surface other than white yields interesting results.

For example I have found a gray screen minimizes the apparent color fade considerably. Of course if it is beet red this will not bring color back - however - in the case of blacks shifting to dark red, it works well.

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Hugh Thompson Scott
Film God

Posts: 3063
From: Gt. Clifton,Cumbria,England
Registered: Jan 2012

posted August 27, 2013 10:35 AM

That's interesting Roy, and merits further study.

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