Sigma EF-500 DG Pentax fit - Description:
The Electronic Flash EF-500 DG TTL SUPER is designed to work with both Auto Focus 35mm SLR and Digital SLR cameras of popular manufacturers(Nikon, Canon, Sony, Pentax, Olympus) for advanced flash photography. EF-500 DG TTL SUPER has a maximum guide number of 165 in feet or 50 in meter at 105mm focal length (ISO 100). The projection angle of the EF-500 DG TTL SUPER flashlight is set automatically to match the lens’ focal length ranging from 28mm wide-angle to 105mm medium-telephoto. EF-500 DG TTL SUPER also incorporates a built-in diffuser that expands the angle of illumination down to that of 17mm lens.

EF-500 DG TTL SUPER enables full automatic flash photography by TTL automatic flash exposure control. The EF-500 DG TTL SUPER now includes S-TTL flash photography for Sigma, 3-D multi-sensor balanced fill flash function and i-TTL flash photography for Nikon, E-TTL II flash photography for Canon, ADI flash photography and P-TTL flash photography for Minolta.

For bounce flash EF-500 DG TTL SUPER can be tilted 90° upwards and 7° downward for close-ups. Also EF-500 DG TTL SUPER can be swiveled 180° to the left and 90° to the right. EF-500 DG TTL SUPER incorporates "modeling flash" mode to provide proper light distribution to check the shadow of the subject. The multi pulse Sigma EF-500 DG TTL SUPER flash features enable reduced power setting from 1/4 to 1/128 in 6 steps and the pulse frequency of the flash can be set from 1Hz to 199Hz. EF-500 DG SUPER incorporates wireless TTL flash photography, slave flash photography, and FP flash photography (synchronized with high shutter speeds). In addition, manual flash also can be set at 8 output power levels in the Sigma EF-500 DG TTL SUPER. The covering focal length of the EF-500 DG TTL SUPER flashlight can be seen on the LCD panel, and a flash ready signal can be seen in the viewfinder. The EF-500 DG SUPER also incorporates auto power off system.

The Sigma EF-500 DG TTL SUPER Specifications:

Fitting Mount : Pentax AF Digital and 35mm film SLRs Only
Type Shoe Mount
Guide Number of is 165 in feet / 50 in meters 105mm (ISO 100)
Zoom Range of is Automatically set to match the lens between 28mm - 105mm.
has 17mm wide angle with built-in diffuser.
Bounce Capability of is Up 60, 75, 90 Down 7
Swivel Capability Right of is 60, 75, 90 ,Left 60, 75, 90, 120, 150, 180
Recycle Time of is Approx. 6 seconds (when using alkaline batteries) ,Approx 4seconds (when using NiMH batteries)
Power Source of is 4x AA Alkaline or 4x NiMH batteries
Dimensions (W x H x D) of is 3.0 X 5.5 X 4.6 inches / 77x139x117mm
Weight of is 11.3ounces (320g)

The Sigma EF-500 DG TTL SUPER included accessories:

EF-500 DG TTL SUPER Instruction manual,
Sigma soft case,
Sigma flashlight box,
Sigma warranty card for one year.