Accessories (optional)16810 AppendixWhen selecting an external flash, use products which meet the following basicconditions.(1) Some flashes available on the market operate with a high voltage synchroterminal. If one of these is used, it may damage the camera, and/or the cameramay not function normally. Contact the manufacturer of the flash you are usingconcerning the specifications of the flash’s synchro terminal.(2) Some flashes available on the market have the polarity of the synchro terminalreversed. In this case, even if the flash is connected, it will not fire. Contact themanufacturer of the flash for more information.(3) Exposures when using an external flash require that adjustments be made on theexternal flash unit. If an external flash is used in the auto mode, match it with theF value and ISO settings on the camera.(4) Even if the auto F value and ISO of the external flash are set to the sameconditions as those on the camera, depending on the photographic conditions, itis possible that the correct exposure may not be obtained anyway. In such acase, adjust the auto F value or ISO value on the external flash unit or calculatethe distance in the manual mode and use it that way.(5) Use a flash whose illuminating angle covers the angle of view of the lens.However, in close-up photography with the lens on the wide setting, the bottomof the image may not expose correctly. The ideal is to have a wide angle adapterto fit on the flash and spread the illumination angle so it is wider.(6) Use a flash unit with a flash time of 1/200 sec. or less when using the flash at fullstrength. For devices with a long flash time, a portion of the light emitted will notcontribute to the exposure.(7) If a flash unit or other accessory TTL flash that has additionalcommunications functions other than an Olympus FL series flash is used,it may not only fail to function normally, but may also cause damage to thecamera’s circuitry. Do not use such a device.Using commercially available external flashes