fotohuis Posted November 11, 2015 Share #1 Posted November 11, 2015 Advertisement (gone after registration) New from Klaus Wehner in Paderborn, Germany is the synthetic alternative for HEAP, former used in May & Baker Promicrol and Agfa Atomal. The new type developer ATM-W (Atomal from Wehner) is already tested with some HD curves with some different films. I am getting the new formulae next week when the new HD-Polyethylene bottles are ready to ship. HEAP combines box speed with fine grain. These two developers were in the past very populair in 35mm photography. Link to post Share on other sites More sharing options...
Advertisement Posted November 11, 2015 Posted November 11, 2015 Hi fotohuis, Take a look here New HEAP alternative. I'm sure you'll find what you were looking for!
fotohuis Posted November 27, 2015 Author Share #2 Posted November 27, 2015 New developer in new bottles underway to the Netherlands. I will do a test with this ATM-W soon. Link to post Share on other sites More sharing options...
Maarten Posted November 27, 2015 Share #3 Posted November 27, 2015 Thanks Robert for this initiative. Promicrol was my first developer in the early 70-ties. Looking forward to your results. I recently tried several chemistries with several film types and come back to D-76 every time. Maarten Link to post Share on other sites More sharing options...
fotohuis Posted November 28, 2015 Author Share #4 Posted November 28, 2015 The N-(beta-hydroxyethyl)-o-aminophenol sulfate (HEAP) was carcinogenic so both May & Baker and Agfa Gevaert stopped producing their special developers in the 70's. Till Kodak made Xtol in 1995, there was no real developer which could combine film speed and ultra fine grain.Further you could keep both developers on stock pretty long while Xtol with Ascorbic Acid (Vit. C) has a short life span. Wehner made a synthetic alternative, not carcinogenic of course. In the last decades healthy photo chemicals are produced only. Link to post Share on other sites More sharing options...
fotohuis Posted November 28, 2015 Author Share #5 Posted November 28, 2015 Link to post Share on other sites More sharing options...
fotohuis Posted December 12, 2015 Author Share #6 Posted December 12, 2015 Rollei RPX-400 E.I.400 in ATM-W 20 minutes at 22C in a Jobo rotary system. The next film: Kodak 5222 Double-X. An attempt on iso 400 too. Link to post Share on other sites More sharing options...
fotohuis Posted December 25, 2015 Author Share #7 Posted December 25, 2015 Advertisement (gone after registration) RPX-400 E.I. 400 in ATM-W 15ml+15ml+270ml, CPA-2 22C F=50 RPM. Link to post Share on other sites More sharing options...
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