Development time

CatLABS CatLABS X Film 320 (35mm) in ID-11

11:30 at 20°C, 1+1 dilution, box speed.

Start timer · 11:30

Time

11:30

Standard

Dilution

1+1

Temperature

20°C

Box speed

ISO 320

B&W

Development time

Dilution	EI	Time	Temp	Agitation	Timer
1+1	320	11:30	20°C / 68°F	Standard	Start timer

EI is the speed the film was rated at when shooting. Times marked “not yet verified” come from secondary sources and haven’t been checked against a manufacturer datasheet.

Other temperatures

18°C	19°C	20°C	21°C	22°C	23°C	24°C
14:23	12:53	11:30	10:21	9:12	8:17	7:29

Calculated from the 20°C time using Ilford’s temperature compensation factors, not taken from a datasheet. Most B&W developers behave well between 18°C and 24°C.

Mixing

Dilution	300 ml (one 35mm roll)	500 ml (one 120 roll)
1+1	150 ml developer + 150 ml water	250 ml developer + 250 ml water

How they work together

ID-11: Fine grain, moderate acutance, full film speed, normal contrast. Excellent balance of fine grain, sharpness, and tonal rendition.
CatLABS CatLABS X Film 320 (35mm): Confirmed Kodak Double-X 5222 motion picture stock. Cinematic high contrast look. Note: 120/sheet versions are a different emulsion.

CatLABS X Film 320 (35mm) in other developers

D-76