Olympus OM-1 Repair Manual page 64

C-17
How to judge amount of compensation
for proper exposure:
9. Curtain Speed: At the shutter speed of 1/1000, 11.7 - 12.1 ms for
both the first and the second curtains.
10. Exposure Time:
Tolerance limit
1/1
1000ms
892 - 1100 ms
1/2 500
446 - 550
1/4
250
223 - 275
1/8
125
111 - 138
1/15 62.5
55.6 - 68.8
1/30
31.2
27.8 - 34.3
1/60
15.6 13.9 - 17.2
1/125 7.81
6.99 - 8.63 *
1/250 3.91
3.50 - 4.32
1/500
1.95
1.69 - 2.22
1/1000
0.98
0.79 - 1.20
http://olvmpus.demcntia.org/Hardwarc