Olympus E-20N - Manual (Page 45)

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Flash working range
ISO Max. WIDE (WIDE Limit) Max. TELE (TELE Limit)
AUTO 0.6 (2 ft.) - 8.9 m (29.4 ft.) 0.5 (1.7 ft.) - 7.4 m (24.4 ft.)
80 0.6 (2 ft.) - 6.3 m (20.8 ft.) 0.5 (1.7 ft.) - 5.2 m (17.2 ft.)
160 0.9* 1 (3 ft.) - 8.9 m (29.4 ft.) 0.7* 2 (2.3 ft.) - 7.4 m (24.4 ft.)
320 1.3* 1 (4.3 ft.) - 12.5 m (41.3 ft.) 1.0* 2 (3.3 ft.) - 10.4 m (34.3 ft.)
* 1 Range starts at 0.6 m (2 ft.) if you set the camera to the A (Aperture Priority) mode and stop the
aperture size down to 6.3 or higher.
* 2 Range starts at 0.5 m (1.7 ft.) if you set the camera to the A (Aperture Priority) mode and stop
the aperture size down to 6.3 or higher.
If you attempt to use the flash closer than the ranges described above, the entire picture may be too
bright, or shadows may appear in parts of the picture. If you attempt to use the flash farther than the
ranges described above, the light from the flash will not reach the subject and the subject will
appear dark. You may be able to take a picture farther than these ranges by increasing the ISO
value, but raising the ISO value could cause the picture to appear grainy. With ISO set for AUTO, the
ISO value will be adjusted automatically within the range of 80 - 160. (
➞ 88)
Adjusting Speed for a Flash
The flash synchronizes at any shutter speed. However, the effect of the flash diminishes depending
on the shutter speed.
• The built-in pop-up flash and the optional dedicated FL-40 external flash are designed for optimum
use with a shutter speed of 1/640 seconds or slower. (In the PS mode, 1/250 second is
recommended.)
• For other external flashes with a longer flash time, a shutter speed slower than 1/640 sec. must be
set.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Caution
• Do not use extension lenses when shooting with the internal flash. These attachments will block
some of the flashed light resulting in loss or darkening of the corner areas of the image (known as
vignetting), or casting a shadow on the subject. The ranges in the table above assume that no
such attachments are on the camera.
For more details about how to use the flash. (
➞ 89)