Moersch ECO 4812 Paper Developer - 1 Liter

According to Wolfgang Moersch, "ECO 4812 original "eau de Hürth is my best positive developer and thus probably the best developer on the planet."

The normal dilution is 1+14.

Development time: 2 1/2 - 3 minutes

If you use the same exposure times in a dilution of 1+10 and develop for only 2 minutes, the contrast will increase.

The density of the base fog and Dmax on glossy fibre base and RC papers: 0.00 - 0.02 / 2.00 - 2.30 depending on the paper used. You can find the highest Dmax and with it the highest contrast range with full separation of the shadows, if you use one of the usual suspects: Ilford MGW and Galery, MCC, but also cheaper alternatives such as Adox Fine Print Classic.

In its standard dilution of 1+14 this developer is unsuitable for Kentmere Fineprint. For this paper Moersch recommends a dilution of 1+9 or the use of one of the classic developers such as HP Universal, SE1, SE4 or SE6. For these developers as well, use a dilution of 1+9 and develop for 3 minutes!

The stock solution has a shelf life of 4 years. When opened and depending on the filling level in the bottle this reduces to approximately 2 years. The working solution has a shelf life of 8 months.

The capacity per liter of stock solution is around 400 sheets of 9.5x12 inch paper.