Complete your durable, rugged All Weather camera setup with the P-TTL capable AF540FGZ II Flash from Pentax which features 28 seals, including the hot shoe, that enable a reliable weather-resistant digital imaging system. This unit has a guide number of 177' at ISO 100 and 85mm along with a 35mm equivalent zoom range of 24-85mm, though the auto zoom function is compatible with smaller format Q-series mirrorless cameras, APS-C DSLRs, and medium format 645-series digital cameras. Also, with the use of a built-in diffusion panel the coverage can be extended to 20mm. Another benefit of this flash is tilt from -10 to 90° and rotation 135° to the left and 180° to the right for complete bounce functionality.
The AF540FGZ II has wireless master and slave TTL capabilities with access to 4 channels. It utilizes an optical pulse to transmit information and trigger flash units up to 13.1' away. Also, this unit can be set as a master, control, or slave unit and has access to a contrast control sync setting that enables the adjustment of the output of multiple flashes from a single unit.
An added feature for this flash is a constant LED light with 5 output settings for use during video, as an AF assist light, or as simply another light for your subject. Other settings include a multi-flash mode for stroboscopic photography as well as slow, high-speed, first and second curtain sync. Additionally, the AF540FGZ II runs on 4 AA batteries with a recycle time of 2.6-26.2 seconds and it comes with a case and stand.
|Guide No.||177.17' (54 m) ISO100|
|Angle of Coverage||31° - 78° Horizontal
Wide-Angle Adapter: 98° Horizontal
23° - 60° Vertical
Wide-Angle Adapter: 85° Vertical
|Vari-Power||1/1 - 1/256|
|Bounce Head||+90° to -10°|
|Coverage||20 mm - 85 mm (Full frame)|
|Distance Range||2.62 to 26.25' (0.8 to 8.0 m) at f/5.6|
|Zoom Head||Full frame: 24 mm - 85 mm|
|Recycle Time||Approximately 3 - 5 seconds|
|Flash Duration||1/1200 - 1/20000 sec|
|Compensation||-4 EV to +2 EV (in 1/3 and 1/2 EV steps)|
|Wireless Operation||Method: Optical pulse
Distance: Up to 13.12' / 4.0 m
|Wireless Communication Channels||4 Channels|
|Power Source||4x AA Alkaline, Lithium, Rechargeable NiMH Batteries|
|Dimensions (WxHxD)||3.0 x 4.4 x 4.3" / 76.0 x 113.0 x 108.0 mm|
|Weight||12.35 oz / 350 g|