Cyan setting on color enlarger?

[apconan]

I've read everywhere that one should never or rarely touch the cyan filter settings on a color enlarger when printing RA-4.

So if a medium value is 25Y and 25M, what value should I set the cyan as?

[Photo Engineer]

Zero, always at zero!

PE

[tjaded]

Ditto what PE said!

[Bob-D659]

If your exposure times are way too short, like when doing a 3x3 print from a 2x2 negative with a 250 watt bulb, you can set all three dials to say 50 for a neutral density filter, then ONLY adjust the other two, leaving cyan on 50. so if you std filtering is 45Y 50M then your filter dials would read 95Y 100M and 50 C.

Otherwise do not touch that dial.

[thisismyname09]

Why, exactly, are you not supposed to use cyan and what will it do if you do use it?

[MattKing]

I've never printed colour from transparency material.

If I had, would I have had a use for the cyan filter?

Just curious.

Matt

[donbga]

Why, exactly, are you not supposed to use cyan and what will it do if you do use it?

You only need a magenta/yellow filter pack for color negative printing. Adding cyan only adds density to the filter pack and can also cause color cross over making printing a lot more difficult than need be.

[sidearm613]

I'm not sure if this is true, but I believe that you do sometimes have to touche the cyan dial when doing Cibachrome. But never with RA-4. Somebody more knowledgeable confirm that what I'm on about is true.

[Steve Smith]

So what's it there for then?


Steve.

[perkeleellinen]

It's for printing from slides. My Kodak Colour Print Viewing Kit suggests adding/removing cyan on certain filter cards.