Dist. scale
1.55'
1.9'
2.5'
3'
6'
8'
12'
25'
i
f/1.4
1.540'
~ 1.560'
1.884'
~ 1.916'
2.471'
~ 2.530'
2.957'
~ 3.045'
5.814'
~ 6.198'
7.667'
~ 8.364'
11.252'
~ 12.856'
21.905'
~ 29.122'
173.686'
~ i
f/2
1.536'
~ 1.564'
1.878'
~ 1.923'
2.459'
~ 2.543'
2.939'
~ 3.064'
5.738'
~ 6.287'
7.533'
~ 8.530'
10.960'
~ 13.262'
20.802'
~ 31.339'
121.623'
~ i
f/2.8
1.531'
~ 1.570'
1.869'
~ 1.932'
2.443'
~ 2.560'
2.915'
~ 3.091'
5.640'
~ 6.410'
7.361'
~ 8.763'
10.593'
~ 13.845'
19.495'
~ 34.884'
86.915'
~ i
f/4
1.523'
~ 1.573'
1.856'
~ 1.946'
2.419'
~ 2.587'
2.880'
~ 3.131'
5.499'
~ 6.604'
7.118'
~ 9.137'
10.087'
~ 14.824'
17.817'
~ 42.020'
60.884'
~ i
f/5.6
1.512'
~ 1.590'
1.839'
~ 1.965'
2.388'
~ 2.624'
2.835'
~ 3.187'
5.322'
~ 6.882'
6.818'
~ 9.690'
9.485'
~ 16.370'
15.986'
~ 57.817'
43.530'
~ i
f/8
1.497'
~ 1.608'
1.815'
~ 1.995'
2.343'
~ 2.681'
2.769'
~ 3.275'
5.078'
~ 7.347'
6.414'
~ 10.660'
8.706'
~ 19.414'
13.855'
~ 132.990'
30.514'
~ i
f/11
1.478'
~ 1.631'
1.785'
~ 2.033'
2.290'
~ 2.756'
2.692'
~ 3.393'
4.802'
~ 8.027'
5.973'
~ 12.190'
7.898'
~ 25.319'
11.882'
~ i
22.231'
~ i
f/16
1.447'
~ 1.670'
2.101'
~ 1.737'
2.206'
~ 2.892'
2.573'
~ 3.609'
4.406'
~ 9.500'
5.361'
~ 16.047'
6.845'
~ 51.597'
9.611'
~ i
15.329'
~ i
f/22
1.413'
~ 1.721'
1.684'
~ 2.188'
2.114'
~ 3.075'
2.445'
~ 3.911'
4.012'
~ 12.205'
4.778'
~ 25.969'
5.906'
~ i
7.827'
~ i
11.188'
~ i
"DEDICATED" AUTOMATIC FLASH UNITS
The Pentax AF-200S and AF-160 Automatic Electronic Flash Units are fully compatible
with the LX camera's automatic shutter speed flash synchronization and viewfinder flash
ready light features. When the flash unit is turned "ON" with the camera's shutter dial set at
"Automatic" and the flash unit set for auto flash operation, the shutter automatically
synchronizes at "X" (1/75th second) and the "X" indicator inside the viewfinder glows
when the flash unit reaches full charge
NOTE: Dedicated flash is also offered with the above two units with the shutter dial set to
"X." The AF-200S also features flash exposure override. When the viewfinder indication
for the camera's metering system is between 1/30th second and 4 seconds (occasionally
1/60th second, due to stepless metering) flash synchronization is automatically obtained;
when faster speeds are indicated, however, non-flash exposure system overrides flash,
preventing overexposure. (This feature is not offered with the AF-1 60).
Quick Reference Guide
TTL Measurement
Visible check
Visible Ready
Auto FIash Synch
AF-400T
X
X
X
X
AF-280T
X
X
X
X
AF-200S
- - -
- - -
X
X
AF-160
- - -
- - -
X
X
OTHER FLASH UNITS