Formulary's Developer 50 (DK-50) is a moderately fast developer for commercial and sheet film sizes of Plus-X and Pan professional films. The developer produces negatives with normal contrast, average to slightly higher than average graininess. It may be used without dilution.
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D-50R Replenisher 01-0115
Posted by Michel Hardy-Vallée on 3rd May 2020
Thank you, this works perfectly! I've been looking for a developer that gives an upswept curve, and wasn't happy with HC-110.
I used it 1:1 as one-shot developer on 400TX in 120, dev 6 mins according to Kodak's recommendation.
I used it at EI 400 on a bright sunny day, and the resulting highlights have great contrast, there's still good shadow details, and the details are crisp. You have to expose to make sure you don't overexpose the highlights.
Yeah, this combo really reminds me of 320TXP in 120, I missed that.