Join newsletter 

Change your preferred location

Contact Us


Order prints

Product Specifications

Pentax  AF-540FGZ II  

Main specs

Guide Number:  54

Bounce Angle:  +180 / -180 horizontal, +90 / -10 vertical

Dimensions:  76mm x 113mm x 108mm

Pentax-AF-540FGZ II-Flashes and Speedlights
Description Specifications



76mm x 113mm x 108mm



Power Source

4 AA batteries, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6))

Type of Unit

Flash / Speedlight


Notable Features

  • Weather resistant All Weather (AW) construction pairs perfectly with PENTAX WR digital SLRs.
  • Guide Number 178 at ISO 100/ft (54 at ISO 100/m)
  • LED constant light source for video and long exposure photography

Exposure / Flash Control

Clip-on, P-TTL auto zoom flash unit with series control

Guide Number


Angle of Coverage


Bounce Angle

+180 / -180 horizontal, +90 / -10 vertical

Shooting Distance (Zoom Range)

2.6 to 26.3 ft

Recycling Time

approx. 5 s

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


· Shop by Category

· Shop by Brand

· Photo Prints & Gifts

Photo Services

· Classes and Training

· Photo Creations

· Passport Photos

· Photo Restoration

· Video Services

about us 

· Contact Us

· Privacy Policy

· Terms & Conditions


Join our newsletter

All prices shown are in Canadian dollars. We try to ensure that our prices on our website are accurate and up to date. However, we do reserve the right to advise you of any price changes prior to processing your purchase. In these limited cases your approval would be required before we process your order. We reserve the right to limit quantities. Not all products are available at all locations, please check with your preferred store for product availability.

© 2019 Foto Source Canada Inc.. All Rights Reserved