Sigma Press Release 16/03/04

Advanced flash photography for digital and 35mm SLR Pentax Cameras(2004.3.16)

ELECTRONIC FLASH EF-500 DG SUPER

New Electronic Flash EF-500 DG SUPER is designed to work with both AF 35mm SLR and Digital SLR Pentax cameras. It has a maximum guide number of 50/m at the 105mm focal length setting (ISO 100) / 165/ft (ISO100). The projection angle of the flashlight is set automatically to match the lens? focal length ranging from 28mm wide-angle to 105mm medium-telephoto. It also incorporates a wide panel that covers angle of view down to 17mm focal length. It enables full automatic flash photography by TTL automatic flash exposure control and it is compatible with P-TTL flash photography of *ist D cameras. For bounce flash it can be tilted 90degree upwards and 7degree downward for close-ups. Also it can be swiveled 180degree to the left and 90? to the right. It incorporates “modeling flash” mode to provide proper light distribution to check the shadow of the subject. The multi pulse flash features enable reduced power setting from 1/4 to 1/64 in 4 steps and the pulse frequency of the flash can be set from 1Hz to 100Hz. EF-500 DG SUPER incorporates wireless TTL flash photography, slave flash photography, and FP flash photography (synchronized with high shutter speed). In addition, manual flash also can be set at 8 output power levels. The covering focal length of the flashlight can be seen on the LCD panel, and flash ready signal can be seen in the viewfinder. The EF-500 DG SUPER also incorporates auto power off system.