Pentax AF 540 FGZ II Flash

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  • Regular price $699.00

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Designed to be tougher, smaller and lighter, this hot shoe mounted, bounce-and-swivel, auto-zoom Pentax AF 540 FGZ II Flash provides a variety of advanced flash applications, including P-TTL auto flash, high-speed synchronization and wireless P-TTL auto flash with Pentax digital SLR cameras, and is now equipped with the Pentax-original weather sealed construction and an LED light for a constant ambient source for shooting movies and long exposure stills. Enjoy vertical and horizontal bounce flash, and seriously enhanced battery life.

  • Weather-resistant construction 
  • Guide number of 54 at ISO 100/m
  • High-intensity fixed LED light
  • Horizontal and vertical bounce
  • Built-in wide-angle panel
  • Multi flash emission function
  • User-friendly custom function settings


Dependable weather-resistant construction for demanding outdoor shooting
With 28 seals applied to crucial parts of the unit body including the hotshoe, the Pentax AF 540 FGZ II Flash features a highly dependable weather-resistant construction. By coupling the flash with a camera body and a lens that feature the same weather-resistant construction, you 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
The Pentax AF 540 FGZ II Flash incorporates a newly designed, high-intensity fixed-light LED light in its 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 with selected camera bodies.

User-friendly function settings
You can customise the flash operation by pre-setting as many as nine different flash functions to your 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
The Pentax AF 540 FGZ II Flash provides 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 synchronisation and wireless P-TTL auto flash.


Type Pentax strobe
Flash modes P-TTL auto, manual, multi, wireless (P-TTL/Manual)
Bounce head 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°
Zoom head Auto zoom enabled with autofocus compatible camera and lens combination
Color temp Daylight
Dimensions (W x H x D) 76 x 113 x 108mm
Notes LCD panel illumination button illuminates the LCD panel for about 10 seconds or press the button again to turn it off
Guide number Maximum 54 (ISO 100/m)
Approx. 0.8m - 8.0m (Guide No. 45, ISO 100, F/5.6)
Interval battery life 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
Sync modes Leading curtain sync, trailing curtain sync, contrast control sync, high-speed sync
Power supply Four AA batteries, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6)
Weight (w/o batteries) Approx. 350g 

Box Contents

  • Pentax AF 540 FGZ II 
  • Flash Case O-AC141 
  • Flash Stand