Time Charts

STANDARD® Film Developer Time Chart

Recommended Time + Temperature Based on Film Type

To determine the proper development time for your film, locate your film type on the chart below and read across to the column headed by your desired working temperature. The number listed at the intersection of your selected film and desired working temperature is the development time for your film.

Download a printable PDF version of this chart.

Film TypeChart LetterTemp/Time (min:sec)
20.0°C
68.0°F
22.0°C
71.5°F
24.0°C
75.0°F
Agfa
Apx 100N8:307:005:30
Apx 400R15:0012:3010:00
Arista
.Edu 100M7:306:005:00
.Edu 200O10:008:006:30
.Edu 400R15:0012:3010:00
.Edu Ultra 100N8:307:005:30
.Edu Ultra 200L6:305:154:15
.Edu Ultra 400Q13:0010:308:30
II 100N8:307:005:30
II 400R15:0012:3010:00
Bergger
BRF / BPF 200P11:309:157:30
Efke / Adox
KB25 **J5:004:003:18
KB50N8:307:005:30
KB100O10:008:006:30
KB400R15:0012:3010:00
Fuji
Acros 100O10:008:006:30
Neopan SS 100N8:307:005:30
Neopan 400N8:307:005:30
Neopan 1600P11:309:157:30
Foma
Fomapan 100N8:307:005:30
Fomapan 200L6:305:154:15
Fomapan 400Q13:0010:308:30
Forte / J&C
Fortepan 100M7:306:005:00
Fortepan 200O10:008:006:30
Fortepan 400R15:0012:3010:00
Ilford
PanF+N8:307:005:30
FP4+N8:307:005:30
HP5+O10:008:006:30
Delta 100N8:307:005:30
Delta 400P11:309:157:30
Delta 3200 *S17:0014:0011:15
SFX200O10:008:006:30
Kentmere
K100N8:307:005:30
K400P11:309:157:30
Kodak
125PXN8:307:005:30
400TXO10:008:006:30
100TMXO10:008:006:30
400TMYP11:309:157:30
400TMY-2P11:309:157:30
3200TMZ *S17:0014:0011:15
Infrared (HSI) *P11:309:157:30
320TXPN8:307:005:30
Eastman Double-XO10:008:006:30
Maco
UP25+ **J5:004:003:18
UP100+O10:008:006:30
UP400+O10:008:006:30
Maco Cube 400R15:0012:3010:00
NOTES:
∗ When using these films, use STANDARD concentrate diluted 2:8 at 24°C / 75°F.
∗∗ When using these films, agitate continuously for the first 15 seconds, then one inversion each minute thereafter.

Chart Letters

If your desired working temperature does not appear on the chart above, you may use Sprint’s Chart Letter System to determine development time for your film. To use this system, note the “Chart Letter” listed next to your film.

Once noted, this letter can be used to find a development time on our Development Timing System Chart (below).

Development Timing System Chart

Locate recommended developing Temperature/Time combination. Note chart letter and use any convenient temperature/time combination on that letter’s line for matching results. Chart is based on developing activity, which doubles with each increase of 6.66°C (12°F). Most films should remain below 25°C.

The Development Timing System Chart can also be used in conjunction with our recommended Chart Letter Adjustments to determine the appropriate adjustments for changes in working solution temperature, variations in film exposure and a variety of other processing conditions.

Chart LetterTemp / Time (min:sec)
18°C
64.5°F
19°C
66°F
20°C
68°F
21°C
70°F
22°C
71.5°F
23°C
73.5°F
24°C
75°F
25°C
77°F
26°C
79°F
27°C
80.5°F
28°C
82.5°F
29°C
84°F
30°C
86°F
AAA1:141:071:000:540:490:440:400:360:320:290:260:230:21
AA1:261:181:101:030:570:510:460:420:380:340:310:280:25
A1:441:341:251:171:091:020:570:510:460:410:370:340:30
B1:571:451:351:261:171:101:030:570:510:460:410:370:34
C2:152:001:501:391:291:211:131:050:590:530:480:430:39
D2:352:202:051:531:421:321:231:141:071:000:550:490:44
E3:002:402:252:101:581:461:361:261:181:101:030:570:51
F3:293:082:502:332:182:051:521:401:311:221:141:071:00
G4:003:373:152:562:382:232:091:551:441:341:251:171:09
H4:454:153:453:233:032:452:292:152:011:451:381:281:20
I5:154:454:153:503:273:052:482:302:172:031:511:401:30
J6:155:305:004:304:003:403:182:582:412:252:111:571:46
K7:006:155:455:154:454:153:483:253:052:472:302:162:02
L8:007:156:305:455:154:454:153:523:293:082:502:332:18
M9:158:157:306:456:005:305:004:304:003:373:162:562:39
N10:309:308:307:457:006:155:305:004:304:003:383:162:57
O12:3011:0010:009:008:007:156:306:005:304:454:153:563:32
P14:0013:0011:3010:159:158:307:306:456:005:305:004:304:00
Q16:0014:3013:0011:4510:309:308:307:457:006:155:305:004:30
R18:3017:0015:0013:3012:3011:0010:009:008:007:156:305:455:15
S21:0019:0017:0015:0014:0012:3011:1510:009:008:007:156:456:00
T25:0022:0020:0018:0016:0014:3013:0012:0011:0010:009:008:007:00
U28:0025:0023:0020:3018:3017:0015:0013:3012:3011:0010:009:008:00
V31:0028:0025:0022:3020:3018:3016:3015:0013:3012:0011:0010:009:00
W37:0033:0030:0027:0024:0022:0020:0018:0016:0014:3013:0011:4510:30
X43:0039:0035:0032:0029:0026:0023:0021:0019:0017:0015:0013:3012:30
Y49:0044:0040:0036:0032:0029:0026:0024:0021:3019:3017:3015:3014:00
Z56:0050:0045:0041:0037:0033:0030:0027:0024:0022:0020:0017:3016:00
ZZ74:0067:0060:0054:0049:0044:0040:0036:0032:0029:0026:0023:3021:00
ZZZ86:0078:0070:0063:0057:0051:0046:0042:0038:0034:0030:0027:0025:00

Chart Letter Adjustments

The Chart Letter Adjustments can be used to determine the appropriate adjustments for changes in working solution temperature, variations in film exposure and a variety of other processing and printing conditions.

ConditionAdjustment
Flat lighting+2
Flat subject+1
Electronic flash+1
Low quality camera+1
Uncoated lense+1
Plastic lense+2
Underexposed (push), 1 f-stop+2
Underexposed (push), 2 f-stops+4
Overexposed (pull), 1 f-stopNo change
Overexposed (pull), 2 f-stops-1
Outdated film+1
Poorly stored film+1
Old, exposed film+1
Diffusion, cold light+3
High contrast effects+3 to +9
Contact printing+3
General safety margin+1
Color head enlarger+3

Note: All adjustments are in letters. For example, a Chart Letter of “Q” with an adjustment of +2 for a plastic lens would yield a final Chart Letter of “S” on the Development Timing System Chart, as shown below: