I have a color enlarger, but am only into printing b/w prints. I prefer fixed grade paper, but would like to try some multigraded-paper (AGFA). Can I use the color mixer in my enlarger, and where can I find some information on this topic?

-- Wim (wim@vl-brabant.be), February 08, 1999

Answers

Most boxes of AGFA paper (not all) have AGFA's starting points for color filtration. If you want more general information read this forum or the FAQ's here at Black and White World.

-- Jeff White (zonie@computer-concepts.com), February 09, 1999.

I have used my Durst AC707 Autocolor enlarger very well in processing B/W prints from both B/W and colour negs on VC paper: Agfa, Ilford and others. I use the settings provided in the instruction manual that came with the enlarger.

-- Christine ErskineSmith (resmith@rad.net.id), February 11, 1999.

Generally, the magenta increases contrast while yellow decreases it. The use of cyan could be handy to help control the exposure and would not affect contrast with VC papers. Every time you add or subtract yellow or magenta, your exposure needs to be adjusted. But fussing with three knobs to reach one specific contrast grade (and hopefully an acceptable exposure) is a lot more work than just getting a set of gelatin variable contrast filters for use under the lens (Kodak Polycontrast Filter set, about $25). Keep all your color controls set to zero, and just use the filters. If you had a filter drawer you could use Ilfords Multigrade filter set for use above the lens, which is better because you wouldn't have to put anything between the lens and the print. Of course, the ultimate is a VC constant exposure head on your enlarger. After years and years of doing it the hard way, I finally got one of these and it is a jewel to use. You twist one knob. It changes contrast and keeps the exposure constant for you automatically.

-- Tony Rowlett (rowlett@alaska.net), February 11, 1999.

Filtering B&W prints W/color enlarger.

I have a Beseler 23c enlarger with a Dual Dichro Color head and in the instruction manual they list what settings to use for contrast changes in B&W. If your manual does not cover this why not call or write the manufacturer and ask? I'm certain they will want you to be happy with their product.

-- H. David Huffman (craptalk@ix.netcom.com), May 12, 1999.

Wim: Printing photographs IMHO is Not a science. The colour-head enlarger (dichroic) enables you to work with an infinite variation of contrast and control. Single grade papers were the first created so there are some 'purists' who feel compelled to work under rigid (scientific) conditions. A colour head enlarger has opened up the fun, joy and Creative element of darkroom work. The main reason so many people are (re) discovering the delight and flexibility of B&W photography and darkroom 'work'. There is no real need to relate to the 'number' on specific grades of paper. I print (what many consider to be) high quality, repeatable images on RC multigrade (Ilford MGIV). I feel rather than be concerned with a number 'grade', photographers/printers instead should develop a 'feel' for the work they wish to create, using the infinite 'tools' within the dichroic head 'palette'.

Mike

-- Mike W. (mbworld@adan.kingston.net), February 21, 1999.