The Monochrome print and the colour enlarger.

Many years ago I was in a position to purchase a medium format film camera. This led to a complication in the darkroom in that my then current enlarger was for only 35mm film. An extra expense I had not budgeted for! At that time multigrade headed enlargers were quite expensive second hand and a bit thin on the ground. By chance 'the other half' noticed an ad in the local paper, it was for a medium format colour enlarger that came with some other bits to do with colour printing. I had not considered that a colour enlarger maybe just as good. The person I spoke to did not know what size negatives it took. So going to have a look was a gamble but then I only had to go round the corner. To my surprise it was all in mint condition and the enlarger would deal with negative sizes up to 6 x 7 - I was hooked! Apparently the seller had only used it a few times and decided to go digital. We struck a deal and the rest as they say is history.

Once the enlarger was home I dismantled it and gave it a good clean and checked it was all in good working order, not that I expected to find a problem. The big surprise was how dusty the inside was. It was gently cleaned with a soft damp cloth and wiped dry so as not to leave any residue marks. 

The next thing I needed to know was how to set the filters values for use with black and white multigrade papers. I chatted to a friend who pointed me in the right direction. After a bit of digging in the library I came up with a number of values for different makes of enlarger my one included. I thought the values should all be the same. But have discovered that the values are a suggested starting point. I have a set of multigrade filters that I used with my other enlarger at least now I will not have to check them for dust.

 There is a lot of speculation on the subject of using colour enlargers with multigrade papers. They split into two camps - the purists that say the multigrade filters only give the papers true contrast and people like me who check things out for themselves. I am at an advantage in that I have used both methods. Personally I have not noticed a difference but then I have not done a like for like comparison. Would I do one? The only way I can answer this is to say If I was to become dissatisfied with my results I may check to see if there was a difference.

 

The following are the values for Variable contrast papers for different makes of enlarger. The values are for the yellow and magenta filters the Cyan should be set to zero at all times.

Ilford settings
	1		2		3		4
Grade	Y	M	Y	M	Y	M	Y	M
0	150	25	92	16	75	12	110	16
0.5	110	33	74	22	55	16	73	22
1	85	42	56	28	42	21	57	28
1.5	70	55	46	37	35	27	46	36
2	55	70	36	46	27	35	36	46
2.5	42	80	28	53	21	40	28	53
3	30	90	26	60	15	45	20	60
3.5	18	112	12	75	9	56	12	74
4	6	135	4	90	3	67	4	90
4.5	0	195	0	130	0	97	0	130
5	0	200	0	130	0	97	0	130

The numbered columns represent different makes of enlarger

1. Dunco, Devere, Chomega, Beseler, Jobo, Kaiser, Omega, Paterson, LPL,Kodak.
2. Durst.
3. Meopta
4. Leitz
5. kodak
6. Durst

Kodak
Grade	5		6
	Y	M	Y	M
0	130	0	130	0
1	75	10	65	15
2	50	20	40	35
3	30	35	20	60
4	10	100	10	100
5	0	200	0	180

It has been many many years since I obtained my enlarger and the resulting prints I have produced with it I have been pleased with, so much so that I have not tested the accuracy of the enlargers filters with Ilfords set. If it ain’t broke why try to fix it!

Since writing this ilford have introduced multigrade five making the above tables relevant to multigrade 4 only.  when purchasing paper you should always check the manufactures tables that come with the paper for the latest filter values.

Print 1

Print 2

Print 4

Print 5

Technical data:

1. 35mm film, Agfa apx, iso 100, developed in ID11, Printed on Ilford multigrade RC gloss. developed in multigrade.
2. 120 format FP4+ iso 125  , 6x6 negative, developed in ID11,  Printed on Ilford multigrade RC gloss. developed in multigrade
3.  120 format FP4+ iso 125, 6x6 neg, developed in ID11, Printed on Ilford multigrade RC gloss. developed in multigrade.
4. 120 format fomapan 100, iso 100, 6x6 neg, ID11, Printed on Ilford FB gloss natural tone, developed in multigrade.

Mottled prints

The one thing I like about traditional photography is it can be unpredictable. Even though the method you use is tried and tested, guaranteeing to a certain extent, good results, when the unexpected happens there are a lot of questions. Checking the method and chemicals used is great when a clear mistake can be tracked down, but what happens when there isn't?

 Sometime ago I pulled a set of FP4+ 120 format negatives from the processing tank that at first glance looked normal. I was studying the negatives in their sleeve when I noticed that the grain was not as usual.

Anyway, I did no more about it until I printed a number of them, then it became apparent the grain structure was different, so much so that it gave the photographs a mottled affect. I was not impressed, however once the prints where dry I filed them away. 

I went back over the way I processed the negatives, checking everything, but could not find an obvious reason for the way they had turned out. To add to the mystery it was not present on all of them. At the time I had just started using a new batch of PMK Pyro developer. I asked myself a lot questions about: 'did I mix it properly?' 'in the right order?' etc. etc. but could not come to a clear answer. So I shelved the developer metaphorically and literally.

The reason I'm telling you all this is that recently I have been looking through some of my boxes of prints when I came across these pictures again. The funny thing is I now quite like those mottled pictures, so much so that I'm going to print some of the other negatives and do some reprints on different paper. I find it baffling that when revisiting prints or negatives that did not appeal at the time, either compositionally or technically, they have now come into vogue. It is almost as though you are not mentally ready for what your eye is telling you works. In other words you need to keep an open mind even if it is not what you set out to do.

Since writing this I have been reprinting some of the negatives making me question again whether it was a developer fault. There is only one way to find out. 

It is now 2021 and the fault is down to the backing paper in some cases if it is 120 format film.

I have now found the fault.