DIY Lith Chemistry

Like many worldwide I've been bitten by the 'lith bug'.

However I'm located in New Zealand and we only seem to have a supply

of one type of Lith developer (Fotospeed) and as a student the

running cost is absurd.

 

So I was wondering if anybody knows some formula for making your own

Lith developer?

 

Stu :)

One Lith developer formula coming right up;

 

Solution A

 

Hydroquinone 25 g/l

 

Potassium Metabisulphite 25 g/l

 

Potassium Bromide 25 g/l

 

Solution B

 

Potassium Hydroxide 50 g/l

 

For use, mix equal parts of A and B and develop for 2 mins at 65 degrees F.

 

Enjoy.

 

Ron Mowrey

Brilliant! Thanks!

 

I'll order the chemistry on Monday and see what happens...

 

Many thanks again.

 

Stu :)

here are a couple more

ID013

sol. a

water at 125 degrees 750ml

hydroquinone 25g

potassium metabisulfite 25g

potassium bromide 25g

water to make 1000ml

 

sol. b

cold water 750ml

potassium hydroxide 50g

water to make 1000ml

 

1 part a to 1 part b with 4 parts water.

 

ID 85

Sol a

 

water 125 degrees 500ml

sodium sulftie 36.5 g

hydroquinone 28g

potassium bromide 2 g

water to make 1000ml

 

Sol. b

water at 90 degrees 5ooml

sodium bisulfite 11g

sodium sulfite 1g

paraformaldehyde 37.5 g

water to make 1000ml

 

4 parts a to 1 part b to 10 parts water.

Ann;

 

Your first formula is the same as mine. Mine was published in 1941.

 

Ron Mowrey

sorry to waste the space; i thought i had reviewed carefully but clearly i didn't. I got mine from Christine Anderson.

Ann;

 

Sorry, no criticism intended. I was just amused that we came up with the same formula and mine was from a 1941 formulary. I guess if something works, it sticks around for a long time.

 

Ron Mowrey