The patent for Microdol-X expired ages ago. Kodak claims they will never make Microdol-X again. Publish the formula please. Kodak will score massive PR points.
The patent for Microdol-X expired ages ago. Kodak claims they will never make Microdol-X again. Publish the formula please. Kodak will score massive PR points.
Keith, I wish I could access the book, but it's sitting in a warehouse in Antwerp and I'm in Saudi Arabia for the time being. But I do believe it was 40g per liter/quart of D-76, divide the ISO in half and develop for twice as long. I only ran four or five rolls through the liter I did up, extending the developing time as appropriate.
I'm attaching another picture developed in this combination (Leica M2, Summicron, church in Lyon). I'll be exploring this more in the future.
Side question: Has Rollei Pan 25 anything to do with Rollei RPX 25?
But was it? I had a debate with somebody (here on Apug or maybe photo.net) who said RPX 25 was always the same emulsion. I remember when it came out first it was not the same emulsion it is today. (That may be true for RPX 100 and 400.)
On a particular trip to the mountains I shot three different 120 films on the same trip : Pan F @ 25, Ekfe 25, and Rollei Pan 25. They were all quite different in terms of characteristic curve. Pan F has an exaggerated S-curve with limited tonal range; Efke 25 had an exceptionally long range due to its very long relatively straight line - up to 12 stops without need of compensating or minus development; and Rollei was somewhere in between, with considerably less shadow gradation than Ekfe, but distinctly more than Pan F.
Substance | Quantity |
Water at 52°C | 750mL |
Metol | 5g |
Sodium Sulphite | 125g |
Potassium Bromide | 0.5g |
Borax | 3g |
Boric Acid | 1.5g |
Water to | 1L |
|
FX 5b: A fine grain developer. An exposure increase of about 1 stop over the normal exposure is recommended. Recommended developing times are: Kodak's Plus-X 10.0min.@68F Kodak's TMX-100 8.5min.@68F |
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