Approximate Effective Flash Range In P-Ttl Auto Flash - Pentax AF 200FG Operating Manual

■Approximate effective flash range in P-TTL Auto flash

Flash
ISO sen-
Coverage
sitivity
Angle
Normal
ISO 100
With the wide-
angle panel
Normal
ISO 200
With the wide-
angle panel
Normal
ISO 400
With the wide-
angle panel
Normal
ISO 800
With the wide-
angle panel
Normal
ISO
With the wide-
1600
angle panel
* You can check the approximate range of distances within which the flash unit can adjust the flash output (and the appropriate exposure is
available) based on the combination of the ISO sensitivity setting on the camera and the aperture value from the above table when the mode
dial is set to (AUTO). (The values in "Wide Panel" line indicate the range when the wide-angle panel is used.) Note that the minimum range
that will give correct exposure is 0.7 meters.
12
1.4 2 2.8
2.1-14.3 1.5-10.0 1.1-7.1
1.6-10.7 1.1-7.5 0.8-5.4
3.0-20.0 2.1-14.0 1.5-10.0
2.2-15.0 1.6-10.5 1.1-7.5
4.2-28.6 3.0-20.0 2.1-14.3 1.5-10.0
3.2-21.4 2.2-15.0 1.6-10.7
6.1-40.7 4.2-28.5 3.0-20.4 2.1-14.3 1.5-10.2
4.5-30.0 3.1-21.0 2.2-15.0 1.6-10.5
8.5-57.1 5.9-40.0 4.2-28.6 3.0-20.0 2.1-14.3 1.5-10.0
6.4-42.9 4.5-30.0 3.2-21.4 2.2-15.0 1.6-10.7
Aperture (F value)
4 5.6 8
0.7-5.0 0.7-3.6 0.7-2.5
0.7-3.8 0.7-2.7 0.7-1.9
1.0-7.0 0.7-5.0 0.7-3.5
0.8-5.3 0.7-3.8 0.7-2.6
1.1- 7.1 0.7-5.0
1.1- 7.5 0.8- 5.4 0.7- 3.8
1.1- 7.1
1.1- 7.5 0.8- 5.3
1.1- 7.5
11 16 22
0.7-1.8 0.7-1.3 0.7-0.9
0.7-1.4 0.7-0.9 0.7-0.7
0.7-2.5 0.7-1.8 0.7-1.3
0.7-1.9 0.7-1.3 0.7-1.0
0.7-3.6 0.7-2.5 0.7-1.8
0.7- 2.7 0.7- 1.9 0.7- 1.4
0.8- 5.2 0.7-3.6 0.7-2.6
0.7- 3.8 0.7- 2.6 0.7- 1.9
1.1- 7.3 0.7-5.0 0.7-3.6
0.8- 5.5 0.7- 3.8 0.7- 2.7
(Unit: m)