Yeah, maybe I will - and I can tell you it ain't going anywhere! I just want to gain some experience with both heads...... I think that's a good thing and should certainly teach me more. Doing that will give me more skills (hopefully) and maybe..... maybe at the end I can make better prints.
Stick with the confusing dispenser.
Originally Posted by Sirius Glass
Have both, use both. IF THE NEGS are developed to print on grade 2 with either enlarger, they will be very close. That means a longer development time for diffusion. The differences are slight so you will have to have them side by side to see the differences. Overall contrast is the same as you adjusted the time in negative developer to compensate. The condenser print will have more snap in the low tones, the diffuser will have less in the low but more highlight separation. A diffusion machine burns in highlights much easier.
The condenser will have 1 grade more contrast than the diffusion. Taking the same neg and printing with #2 condenser and #3 diffusion does not produce the same print.
If your filters are shot, then either buy new or purchase Roscoe Cine Gels from B&H. They are made to cover stage lighting for theater, but you can use them for VC printing. Buy green for soft and blue for hard. Buy 1/4 and 1/2 to fine tune. The man who made Aristo lights put me on to it. Remember yellow filters out blue leaving red, which the paper does not see, and leaving yellow and green which the low contrast layer reacts to. Blue filters out yellow so the high contrast layer activates. I printed an Aristo head this way for years. The Roscoe filters are large so you need to cut them to size and put them into a cardboard frame, but you will have two lifetime supply from one sheet.
A color head will also work as a diffusion head . Use yellow for low and magenta for high contrast.
condenser and color heads, both make great prints as long as the negative was devekoped to gihavethe appropriate contrast for them.color heads like s negative with a bit more contrast and they hide minor flaws such as dust and grain.but either light source will work if handled appropriately.
Regarding the combinations of yellow and magenta filtration on different manufacturers' diffusion-heads, start off from the values on the information sheet inside the box of paper. It can also become intuitive to pick a grade based on the neg, make the initial exposure (with burning-in or dodging) and then add more or less contrasty exposure(s) where needed using higher/lower contrast filtration - possibly effectively the same as you were doing using the filters previously, but adjusted to allow for the different way of setting the contrast level.
I've been using the colour head for a while now and its working out very well indeed. There are advantages to both systems I think and from my now (limited) experience I wouldn't necessarily recommend one of them over the other. I haven't yet had a situation where I couldn't get the contrast level I wanted, so all good there.
Its working out very well for me at least....
Perhaps you should explore straight printing on both before using split grade printing?
Originally Posted by fran
Go to the Ilford site and download information on the Multigrade filters and variable contrast papers. Quite a bit of info concerning filter grades and coresponding Durst colorhead enlargers. Should be worth your time, and I applaud your efforts. Steven.
Tony Egan you are funny. I like that. Confusing Dispenser.
I'll venture that a condenser is fantastic for 35mm and a diffuser is the one to beat for 4x5.
Since a color head is sort of a diffuser, you have a compromise on your hands. If dialing in the contrast filtration gets you where you want to go ... great.
But some of the color heads (my little Durst for one) can't go above 100 (1.0 in density terms) for any one color. And the Grade 4 filter is way up in Magenta.
So you might still require a drawer or under the lens filter to hit those extreme graphic effects.
You might as well keep the condensers clean and carefully stowed away. You'll need them one day.