PENTAX AF-540FGZ II

This flash for PENTAX digital cameras has a weather-resistant design, LED light and is for taking pictures with a guide number of 54 at ISO 100. Thanks to its robust design the flash can be used even in adverse weather conditions - rain and fog, as well as places where it might be splashed with water or in a dusty environment. The body has a built-in LED light, which you'll appreciate when shooting at close range (such as macro), and better illumination of recorded clips.

The user can customize the operation of nine different flash preset functions. It also offers a wide range of firing modes including P-TTL automatic flash mode, in which a preparatory glimpse is detected by the camera's sensor for precise alignment of the main flash. This ensures correct exposure. Flawless synchronization with very short times and wireless P-TTL auto flash.

Specifications:

Type:
Attachable to the accessory shoe
P-TTL auto flash with a zoom lamp

Guide number:
max 54 (ISO 100/m)

Flash duration (half max):
(M1/1) flash: approx. 1/1200 sec
(P-TTL) shortest time: about. 1/20000 sec

Angle of coverage:
Auto zoom activated autofocus camera compatible in combination with the lens

Effective flash range:
approx. 0.5m - 8m (Guide 45, ISO 100, f/5.6)

AF spot beam:
LED white beam is emitted in low light or low contrast scenes
Effective range: Approx. 1m - 7m (according to test conditions)

Compatible ISO range:
ISO 25-1600

Flash modes:
P-TTL auto, manual, multi, wireless (P-TTL/Manual)

Compensating Flash Output:
in P-TTL mode, -4.0 to +2.0 levels (1/3, 1/2)

Setting the Flash Output:
Wireless flash (P-TTL): (1/1-2/3-1/2-1/3)
Manual flash (1/1-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256)
Wireless flash (manually): (1/1-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256)
Multi Flash: (1/4-1/8-1/16-1/32-1/64-1/128-1/256)
Beam mode LED (Auto-1/1-1/2-1/4-1/8-1/16)

Flash mode:
Synchro with the first curtain sync, synchro with the second curtain sync, contrast control, synchro with very short exposure times

Bounce flash:
Vertically and horizontally, flashing position, arrest at 0°

Wide panel:
Extends the manual to cover wide angle

Powered by:
4x AA batteries (alkaline (LR6) batteries, nickel-metal-hydride (Ni-MH) and lithium (FR6))

Charging time/total number of flashes:
AA alkaline (LR6)/charging time: approx. 5 sec/total number of flashes: Approx. 200
AA Nickel-Metal Hydride (Ni-MH) batteries (2500mAh)/charging time: approx. 3 sec/total number of flashes: Approx. 250
AA Lithium (FR6)/charging time: approx. 5 sec/total number of flashes: Approx. 350

Dimensions:
76 x 113 x 108mm

Weight:
approx. 350g without batteries