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Pentax AF-540FGZ Dedicated Shoe Mount Zoom Flash, Guide Number 148 at ISO 100.

SKU: PXAF540FGZ MFR: 30425
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$579.00 List Price

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About the Pentax AF-540FGZ

The Pentax AF-540FGZ is commonly used for Fill flash, General purpose, Night photography, Photojournalism, Portraits, Professional work, Sports photography and more.The Pentax AF-540FGZ is most used by customers who consider themselves to be a Enthusiast, Photo enthusiast, Pro photographer, Semi-professional, Semi-pro photographer among others.The Pentax AF-540FGZ is popular because customers like the following qualities of the Pentax AF-540FGZ: Consistent output, Durable, Easily interchangeable, Easy to clean, Easy to use, Fast recycling, Good power output, Lightweight, Quiet, Strong construction and Versatile.

Pentax AF-540FGZ Includes

  • Case

Summary of Customer Reviews

Customers most agreed on the following attributes:
Consistent output (28) , Fast recycling (24) , Lightweight (18) , Versatile (17) , Durable (14) , Easy to use (14) , Good power output (10) , Easily interchangeable (8) , Quiet (7) , Easy to clean (4) , Strong construction (4) , Rugged (3)
Heavy (5) , Heavy / bulky (4) , Slow recycling (3)
Best Uses:
General purpose (31) , Portraits (21) , Night photography (17) , Fill flash (16) , Photojournalism (11) , Sports photography (5) , Professional work (4)
Reviewer Profile:
Enthusiast (11) , Photo enthusiast (6) , Pro photographer (6) , Semi-professional (6) , Semi-pro photographer (4) , Professional (3) , Casual user (1)

Pentax AF-540FGZ Features

  • Flash exposure compensation through a simple control dial
  • High guide number for increased range and versatile flash performance
  • P-TTL mode with preflash allows for more accurate strobe photography
  • Wireless P-TTL flash is available when used with the MZ-S, ZX-L, *ist D Cameras
  • High speed on camera and high speed wireless flash is available in P-TTL modes
  • Standard TTL flash is available when used with Pentax TTL flash enabled camera bodies.
  • Auto and Manual modes for more creative control or use with non-TTL camera bodies
  • LCD display shows the effective range of the flash in P-TTL, TTL and AUTO modes
  • Modeling light feature strobes the flash for one second so the photographer can check for unwanted shadows or highlights
  • Includes an autofocus assist beam for focusing in low light or low contrast situations

Pentax AF-540FGZ Specifications

Type: Hot Shoe Clip-on TTL auto zoom flash unit with serial control
Guide Number: Feet: With ISO 100, Manual: - 177 (85mm) - 164 (70mm) - 148 (50mm) - 128 (35mm) - 115 (28mm) - 105 (24mm) - 69 (20mm*) (* w/wide angle panel)
Zoom Range: 85mm to 24/20mm*
(* w/wide angle panel)
Bounce Capability: Up: -10o, 0o, 30o, 45o, 60o, 75o, 90o
Swivel Capability: Right: 0o, 30o, 60o, 90o, 120o, 150o, 180o
Left: 0o, 30o, 60o, 90o, 135o
Recycle Time: Alkaline (LR6) Approx. 6 sec. Approx. 200 Flashes
Nickel hydroxide (Ni-MH) Approx. 6 sec. Approx. 250 Flashes
Lithium (FR6) Approx. 6 sec. Approx. 350 Flashes
Special Features: Consecutive Discharge: Approx. 2 frames/sec for 50 pictures, at [M 1/64] output (with alkaline LR6 batteries)
Other Color Temperature: Daylight
Lighting Angle Zooming position: 85mm: Vertical Coverage: 23deg, Horizontal: 31deg, - 70mm: V: 26deg H: 36deg - 50mm: V: 34deg H: 46deg - 35mm: V: 45deg H: 60deg - 28mm: V: 53deg H: 70deg - 24mm: V: 60deg H: 78deg - 20mm*: V: 85deg H: 98deg (w/wide angle panel)
AF Spotbeam Red beam emitted under low light or low-contrast conditions
Compatible Film Speed ISO 25 - 1600
Flash Modes P-TTL auto, TTL auto, auto, manual
Flash Exposure Compensation In P-TTL mode -3.0 to +1.0 steps (0.5 step increments)
Flash Amount Setting With wireless slave: [1/1, 2/3, 1 / 2, 1 / 3]
Manual: [1/1, 1 / 2, 1 / 4, 1 / 8, 1 / 16, 1 / 32, 1/64]
Flash Sync Mode Leading-shutter-curtain sync,
trailing-shutter-curtain sync,
modeling flash
Wireless Flash Control system: Optical pulse transmission
Wireless position: Master (M), control (C), slave (S)
Channels: 1 through 4
Compatible modes: P-TTL, auto (A), manual (M)
Effective range: Approx. 13ft (according to Pentax testing conditions)
Power Saving Automatic power-off: After approx. 3 min. of non-operation with the power in theON position, 6 min. in Auto, 1 hour in wireless mode
Red-Eye Reduction Operates with autofocus cameras equipped with red-eye reduction feature
Modeling Flash Modeling button fires flash consecutively for 1 second
Wide Angle Panel Pull out manually, flash zoom position automatically sets to 20mm
Catchlight Panel Pull out manually
LCD Panel Illumination Light button illuminates the LCD panel for about 10 seconds, or press button again to turn off
Power Source Size-AA batteries x 4, Alkaline LR6, Nickel Hydroxide (Ni-MH), or Lithium FR6
Dimensions 3.0"x5.6"x4.2"
Weight without batteries 13.4 oz without batteries
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