Made to withstand harsh conditions like fog and rain, the Pentax AF 540 FGZ II Auto Flash is built with 28 seals applied all throughout its parts making a weather-resistant construction. Even at a small and light design, it is still capable of having horizontal and vertical bounce in every shot. This auto flash unit has a large guide number of 54 (at ISO100/m) with built-in LED white beam that supplies illumination for both still photography and videography.

Product Features in Detail

Dependable weather-resistant construction for demanding outdoor shooting
With 28 seals applied to crucial parts of the unit body including the hotshoe, these flash units feature highly dependable weather-resistant construction. By coupling one of them with a camera body and a lens that feature the same weather-resistant construction, the user can create a highly reliable weather-resistant digital imaging system that assures solid performance even in harsh outdoor conditions, such as in the rain or at locations subject to splashes and dust.

LED light convenient for movie and still-image recording
Both models incorporate a newly designed, high-intensity fixed-light LED light in their body. This white LED light comes in handy not only for close-distance movie recording, but also for still-image shooting requiring extended exposures. It also functions as a catch light in portraiture and an AF assist light in the dark.*
* The AF assist light function is available with 645D, K-r, K-5, K-30, K-5 II, K-5 II s, K-50 and K-500 camera bodies. The camera’s firmware must be updated to the latest version to support this function.

User-friendly function settings
The user can customize the flash operation by presetting as many as nine different flash functions to their preference, including the on/off of the catch-light function using the LED light and the choice of the flash discharge mode in still-image shooting.

Versatile flash control system
Both models provide a variety of flash discharge modes,** ranging from the advanced P-TTL auto flash mode in which the flash’s preliminary emission is detected by the camera’s light sensor to accurately control the main discharge level for proper exposure, to manual flash, high-shutter-speed synchronization and wireless P-TTL auto flash.
** Available flash discharge modes may vary depending on the camera body in use.

Other features
-Bounce flash function, adjustable to angles of -10 to 90 degrees vertically and up to 180 degrees horizontally
-Power-zoom flash to cover angles of view from 24mm to 85mm lenses (in 35mm format)
-Built-in wide-angle panel that slides out to cover 20mm angle of view (in 35mm format)
-Automatic setting of discharge angle in combination with a PENTAX lens-interchangeable digital camera body
-Multi flash emission function available
-Shorter battery recharge time, in comparison to conventional models

Specification

Type	Clip-on, P-TTL auto zoom flash unit with series control
Guide No.	Maximum 54 (ISO 100/m).
Guide No.	In manual mode, nine-step adjustment from M1/1 to M1/256
Flash duration	(M1/1) flash: Approx. 1/1200 sec. (P-TTL) Fastest duration time: Approx. 1/20000 sec
Flash Coverage Angle	Auto zoom enabled with autofocus compatible camera and lens combination.
Color temperature	Daylight
Effective flash range	Approx. 0.8 m - 8.0 m (Guide No. 45, ISO 100, F/5.6)
AF spot beam	LED white beam emitted under low light or low-contrast conditions.
AF spot beam	Effective range: Approx. 1m - 7m (According to our testing conditions.)
ISO range compatibility	ISO 25 - 1600
Flash modes	P-TTL auto, manual, multi, wireless (P-TTL/Manual)
Flash output compensation	In P-TTL mode, -4.0 to +2.0 levels (1/3, 1/2 step)
Flash output setting	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 (Manual): (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)
	LED beam mode: (Auto➝1/1➝1/2➝1/4➝1/8➝1/16)
Multi flash	Number of the flash : 2 - 100
Multi flash	Flash frequency : 1 - 200 Hz
Flash sync modes	Leading curtain sync, Trailing curtain sync, Contrast control sync, High-speed sync
Wireless flash	(Control system) Optical pulse transmission
	(Wireless position) Master (M), Control (C), Slave (S)
	(Channels) 1 to 4
	Compatible modes: P-TTL, manual (M)
	Effective range: Approx. 4 m (When set to SL1, According to our testing conditions.)
Bounce flash	Vertical and horizontal bounce possible, click stops provided, lock provided at 0°.
	Rightward: 0°, 30°, 60°, 90°, 120°, 150°, 180°
	Leftward: 0°, 30°, 60°, 90°, 135°
	Upward: 0°, 30°, 45°, 60°, 75°, 90°
	Downward: 0°, -10°
Power saving	Automatic power-off: After approx. 3 min. of non-operation with the power on.
	After 1 hour in wireless mode.
	Quick power on: By pressing the camera’s shutter release button halfway.
Red-eye reduction	Operates with autofocus cameras equipped with red-eye reduction feature.
Wide-angle panel	Slide out manually to cover wide-angle.
LCD panel illumination	LCD panel illumination button illuminates the LCD panel for about 10 seconds or press the button again to turn it off.
Power source	Four AA batteries, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6))
Dimensions and weight	76 mm (W) × 113 mm (H) × 108 mm (T) (3.0'' × 4.4'' × 4.2'')
Dimensions and weight	Approx. 350 g (12.3 oz.) without batteries

Warranty

This product comes with 12 Months Warranty with CR Kennedy. Our products are sourced from authorised Australian suppliers and therefore come with genuine Australian warranty. Camera Warehouse does not participate in 'Grey Market' or 'Parallel Import' activities.

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