Olympus Camedia C-2500L Додаткові функції - Сторінка 18

Переглянути онлайн або завантажити pdf Додаткові функції для Цифрова камера Olympus Camedia C-2500L. Olympus Camedia C-2500L 33 сторінки. External flash or strobes not firing with olympus cameras
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Connecting a non-exclusive Extension Flash

Non-exclusive Extension Flash That Can Be Used with This Camera

Use the flash (sold separately) designed specifically for the Camedia C-2500L if possible. If you want to use non-exclusive

extension flashes on the market, extension flashes must satisfy the following conditions in order to be used with the Camedia

C-2500L.

• When the extension flash is used, the flash intensity must be controlled from the extension flash side. If used in the auto

flash mode, the extension flash must use an F stop of F2.8 (applicable with normal shooting mode) or F5.6 (applicable with

macro mode) as its auto flash mode.

• Depending on photographic conditions, a suitable exposure may not be obtained even when using an extension flash at

F2.8 or F5.6. In such case, change the flash's F stop or ISO rating, or set the guide number figured out from the focal dis-

tance in the manual mode. In any case, F-stop in the auto flash mode and ISO rating generally are adjusted in 1 EV incre-

ments, and exposure cannot be compensated any less than this. When using an extension flash, the camera's exposure

compensation feature cannot be used.

• The angle of illumination must cover the range of a lens with 35-mm focal length (when converted into 35-mm film).

However, with wide close-ups, it is recommended to use a flash with a wide adapter for distributing light because the lower

part of the image does not come out sometimes.

• A full flash must last no more than 1/200 of a second. With ring flashes of long flash duration, part of the light might not be

included in the exposure.

• Connecting a non-exclusive extention flash with communicating function which does not meet the contditions above may

damage the camera or flash.

NOTE

When a commercially available extension flash is used in the "P" or "A" mode with low ambient light, the shutter speed is

reduced and picture blur may occur. When using a flash under low light conditions, we recommend using the "M" mode and

setting the shutter speed between 1/40 and 1/100.

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