Olympus PEN E-P1
Olympus E-P1 Flash
To the disappointment of some, the Olympus E-P1 does not have a built-in flash. It does, however, have a dedicated hot shoe for mounting external flash units, like Olympus's new compact FL-14 flash. Other Olympus flash units such as the FL-50R, FL-36R and FL-20 also work, and non-dedicated units can also be used provided they have a compatible trigger voltage and polarity. (Olympus does not seem to mention the trigger voltage or polarity in the E-P1's user manual, though.)
The advantages of a good external flash are many: more power for increased range, faster recycle times, longer battery life, reduced red-eye, auto zoom to match coverage to the current focal length, and the ability to adjust the tilt and swivel of the head to allow light from the flash to be bounced off nearby surfaces such as a ceiling, for a diffuse effect. (The FL-14 does not, however, tilt for bounce-flash operation.) Many external flash units have a powerful AF assist illuminator, and other useful features such as modeling flash and high-speed focal plane (FP) sync mode are common on higher end models.
When using a dedicated external flash with the Olympus E-P1, seven flash modes are available: Auto, Red-eye Reduction, Forced On (Fill flash), Forced Off, Red-eye Reduction + Slow Sync, Slow Sync, and Slow Sync 2nd Curtain. X-Sync speed (the maximum shutter speed with the flash enabled) is 1/180 second, about average these days, though the high-speed FP mode offered on some external flash units is also supported, which should permit flash usage up to the 1/4,000 second maximum shutter speed the E-P1 is capable of.
The Olympus E-P1 allows you to adjust flash and ambient exposure independently of each other, by providing flash exposure compensation between -3 and +3 EV in one-third EV increments. An option in the Custom menu also allows for flash exposure compensation to be independent or additive to ambient exposure compensation. Flash exposure bracketing is also supported, where three shots can be taken at one-third, two-thirds or one EV increments of flash exposure compensation. Of course, if the external flash supports it, manual output power control is also available.
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Note: For details, test results, and analysis of the many tests done with this camera, please click on the tabs at the beginning of the review or below.