It's a good recipe, I used it with Foma 100 negative filmt (!)to make black and white slides. First developing time 5:50 min at 20 °C . Joe From Hungary
On my recent experiments I discovered that D11 straight as your first developer gives far superior results with ORWO UN54 than this one.
18' at 24ºC. 2 inversions every 30".
Try it!