GSD-10 is formulated specifically for slow, designer grain films like Kodak Tmax 100, Fuji Acros 100, and Ilford Delta 100, but produces excellent results with a wide range of films. GSD-10 exploits the unique characteristics of the developing agent, glycin to permit reduced agitation, and even stand development of state of the art, thin emulsion films, without streaking, mottling, or other development defects. GSD-10 produces negatives of excellent gradation, high acutance, extremely fine grain, and true speed increases of up to a full stop with designer grain films, whether developed for low contrast scenes, or high contrast scenes (expansion or contraction development). GSD-10 produces virtually no fog, even when developing to extremely high contrast and density ranges, which makes it as ideal for alternative/UV process printers as it is for 35mm and MF shooters. If you’ve struggled to obtain the maximum image quality potential of the new generation of films, GSD-10 will be a revelation.
GSD-10 is formulated specifically for slow, designer grain films, but produces excellent results with films ranging from slow document- type and ortho films, to IR and super-fast films. GSD-10 is a true acutance developer, and as such, very responsive to agitation as a development control. Unlike most true acutance developers, GSD-10 is compatible with rotary processing, but forfeits much of the increased speed, compensation and adjacency effects that reduced agitation encourages. Use 1:5 dilution for rotary processing with minimum solution volumes. Any agitation pattern from rotary to stand is practical, and will produce excellent results with the appropriate compensation.
Development Times for 1:10 dilution
TMX EI 200- 24:00/70F/*stand
Acros EI 200- 28:00/70F/*stand
FP4+ EI 160- 24:00/70F/*stand
TMY EI 800- 22:00/70F/ #1/3:00
* Continuous agitation for first minute, then stand for remainder
# Continuous agitation for first minute, then one inversion every 3:00