ilford multigrade and dilutions

B

bandeau_rouge

Guest
They say the 1:9 can do 100 sheets of 8x10 RC paper per liter. 70 sheets for the 1:14, how is that greater economy and control?

Also, how does the dilution change contrast of the image?
 
Contrast is controlled during the exposure, not the paper development.

A higher dilution will slow down the appearance of the image, taking longer to develop to finality ie. max-black.

Mike
 
bandeau_rouge said:
They say the 1:9 can do 100 sheets of 8x10 RC paper per liter. 70 sheets for the 1:14, how is that greater economy and control?

Also, how does the dilution change contrast of the image?
Click to expand...

It's highly unusual that anyone will get close to the capacity of 1 litre of working strength print developer in a printing session. So if only doing a few prints 1+14 will be more economic.

There may be a subtle difference in contrast at 1+14 but with MG papers you won't notice.

Ian
 
If you are doing 100 prints in the same developer, you will see a change in contrast between the first and last ones, as the developer approaches exhaustion. You won’t spot any difference between consecutive prints, but over a larger number there will be a subtle change.
This assumes you’re making a run of identical prints. The effect is probably too small if you are printing different images. If you’re printing a hundred (or even seventy) different images in one session, you’re a real hero.
Nowadays, it seems unlikely that anyone would make so many wet prints. Scan, load the inkjet printer and nip out for lunch would be today’s method.
 
no scanner, no printer, nothing seems to work with windows 10 after the official release of windows 11. Strange, but 11 was released, a windows 10 update was released, and no scanner or printer works.

Ive been using, trying to use ethol lpd and they make the big statement that they are the only developer that doesnt change print contrast when you change the dilution.

Havent made a print since last november, everything I have mixed needs a tossing. My opened bottle of bellini d100 needs a tossing. Got an email response from bellini

hanks for your email. Here are the rough shelf-life guidelines for our B&W developers:



1 week when concentrate has been mixed for use and left open

4 weeks concentrate mixed for use and kept in closed bottle

6-8 weeks concentrate kept in closed bottle (after having been opened, but bottle squeezed to expel air)

1-2 years after being purchased and never opened


You may find that, in the right storage conditions, the product lasts longer but these are the guidelines for guaranteed results.


Just hoping multigrade beats that life..
 
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