Approximate effective flash range in P-TTL Auto flash

ISO sen-

Flash

 

 

 

Aperture (F value)

 

 

 

Coverage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sitivity

Angle

1.4

2

2.8

4

5.6

8

11

16

22

 

 

 

 

 

 

 

 

 

 

 

 

Normal

2.1-14.3

1.5-10.0

1.1-7.1

0.7-5.0

0.7-3.6

0.7-2.5

0.7-1.8

0.7-1.3

0.7-0.9

ISO 100

 

 

 

 

 

 

 

 

 

 

With the wide-

1.6-10.7

1.1-7.5

0.8-5.4

0.7-3.8

0.7-2.7

0.7-1.9

0.7-1.4

0.7-0.9

0.7-0.7

 

angle panel

 

 

 

 

 

 

 

 

 

 

 

Normal

3.0-20.0

2.1-14.0

1.5-10.0

1.0-7.0

0.7-5.0

0.7-3.5

0.7-2.5

0.7-1.8

0.7-1.3

ISO 200

With the wide-

2.2-15.0

1.6-10.5

1.1-7.5

0.8-5.3

0.7-3.8

0.7-2.6

0.7-1.9

0.7-1.3

0.7-1.0

 

angle panel

 

 

 

 

 

 

 

 

 

 

 

Normal

4.2-28.6

3.0-20.0

2.1-14.3

1.5-10.0

1.1- 7.1

0.7-5.0

0.7-3.6

0.7-2.5

0.7-1.8

ISO 400

 

 

 

 

 

 

 

 

 

 

With the wide-

3.2-21.4

2.2-15.0

1.6-10.7

1.1- 7.5

0.8- 5.4

0.7- 3.8

0.7- 2.7

0.7- 1.9

0.7- 1.4

 

angle panel

 

 

 

 

 

 

 

 

 

 

 

Normal

6.1-40.7

4.2-28.5

3.0-20.4

2.1-14.3

1.5-10.2

1.1- 7.1

0.8- 5.2

0.7-3.6

0.7-2.6

ISO 800

 

 

 

 

 

 

 

 

 

 

With the wide-

4.5-30.0

3.1-21.0

2.2-15.0

1.6-10.5

1.1- 7.5

0.8- 5.3

0.7- 3.8

0.7- 2.6

0.7- 1.9

 

angle panel

 

 

 

 

 

 

 

 

 

 

ISO

Normal

8.5-57.1

5.9-40.0

4.2-28.6

3.0-20.0

2.1-14.3

1.5-10.0

1.1- 7.3

0.7-5.0

0.7-3.6

With the wide-

 

 

 

 

 

 

 

 

 

1600

6.4-42.9

4.5-30.0

3.2-21.4

2.2-15.0

1.6-10.7

1.1- 7.5

0.8- 5.5

0.7- 3.8

0.7- 2.7

 

angle panel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Unit: m)

*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