GEVAERT G.33 Soft Developer

Kino · 06-26-2007, 09:33 PM

Soft-working film developer with extended shadow detail

Mixing instructions: Add chemicals in specified sequence.

Dilution: Use undiluted

Starting point development time: 8 mins (tray), 14 mins (tank)

Just mixed a liter tonight, going to try it tomorrow with Arista EDU Ultra 120 in 100 and 400 ASA and try 14 minutes for roll tanks.

Kino · 06-26-2007, 09:40 PM

Forgot to add; used .83 g of Sodium Bromide instead of 1g of Potassium Bromide as per substitution table in Anchell's DRCB.

Kino · 06-27-2007, 10:12 PM

Examples of neg scans in B&W darkroom...

Kino · 06-29-2007, 06:32 PM

All films shot at rated ASA/ISO speeds.

For Arista Edu 100 -- I suggest 14 minutes with 15 sec. agitation per min.

For Artista Edu 400 and Ilford Pan F 50-- I suggest 12 minutes with 15 sec. agitation per min.

Kodak TMax 400 -- not recommended

The effects of extended development depend heavily upon the stock, but tend to work best on slower, old-style emulsions.

Kino · 07-17-2007, 09:42 PM

Ilford HP5 -- somewhere in the vicinity of 12 minutes -- YMMV

titrisol · 07-28-2007, 03:25 AM

Do you have a reference for this?
I looked in the Gevaert manual and Taylor&Taylor photo lab-index but cannot find such recipe

Kino · 07-28-2007, 08:58 AM

Quote:

Originally Posted by titrisol

Do you have a reference for this?
I looked in the Gevaert manual and Taylor&Taylor photo lab-index but cannot find such recipe

Well, I will have to pile through my books again, but I DO know it is posted on the Digital Truth site in their formulas section online.

titrisol · 07-30-2007, 03:17 PM

I think there is something wrong in the numbering, film developers had numbering 210-230s, paper developers 250-260s. So it maybe 233?
The only one I've found that is close is G212
* Water, 125F/52C 750 ml
* Metol 2 g
* Sodium Sulfite (anhydrous) 25 g
* Hydroquinone 1.5 g
* Sodium Carbonate (monohydrate*) 35 g
* Potassium Bromide 0.5 g
* Cold water to make 1L

Given the amount of Metol, this should be quite vigorous? or am I wrong?

Tom Hoskinson · 07-30-2007, 03:28 PM

There is a Gevaert GD-33 formula on page 84 of Morris Germain's Darkroom Handbook and Formulary, published by Ziff-Davis 1940.

This Gevaert GD-33 formula is identical to the one posted by Kino.

Kino · 07-30-2007, 04:44 PM

Thank you, Tom. I knew I wasn't crazy... well at least in that respect...

I think mine came from a Focal Press book from the Mid to late 30's that I can't lay my hands on again to save my life. It is part of a two volume set; one is "Developing", the other, "Enlarging".