Pentax AF-540FGZ II Dedicated Shoe Mount Zoom Flash, Guide Number 177 at ISO 100

Model #30456

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Pentax 30456 1
Pentax 30456 1
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Specifications

General Information

Type Shoe Mount
Guide Number 119' (ISO 100 at 85mm)
69' (ISO 100 at 24mm)
Zoom Range 24-85mm
Bounce Capability Vertical 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°
Swivel Capability None
Auto Settings 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.)
Angle of Coverage Auto zoom enabled with autofocus compatible camera and lens combination.
Flash Duration Flash duration (1/2 peak each) (M1/1) flash: Approx. 1/1200 sec. (P-TTL) Fastestduration time: Approx. 1/20000 sec
Power Source Four AA batteries, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6))
Dimensions (W x H x D) 68 mm (W) x 111 mm (H) x 106 mm (T) (2.6" x 4.3" x 4.1")
Weight Approx. 290 g (10.2 oz.) without batteries
User Reviews
Pentaxforums.34752456
31 December 2019
8.0/10

Bought two units new, both failed, one beyond repair, the other is up and running. Bought a third one used here on the forum. So far no more problems. They lack a lot of connectivity and power options, but do the job.

  • +

    WR, recycle time, LED.

  • -

    No bounce card, F5P or power pack connector, laser AF assist.

B h photo.34921152
30 January 2017
10/10

Well built, quality flash. Exactly what I was expecting. Works great with the Pentax 645Z. I keep a few of these around for mobile shooting where studio strobes are too cumbersome. Great for bouncing light at your subject off of walls or reflectors to fill in shadows in natural and urban settings.

B h photo.34921152
5 August 2017
10/10

Much improved from older Pentax flash. Battery door prpoblems made me crazy with my last one. This flash is rugged, by comparison and gave excellent results. Shot a wedding reception for a family member and photos were outstanding and well lit.

Pentaxforums.34752456
28 February 2017
9.0/10

This is really a great flash. I've used the old AF360fgz and the old AF540fgz, as well as the Sigma EF530 and many old auto flashes. This one is the easiest to use by far.

  • +

    Relatively Small, Powerful, Easy to Use

  • -

    No "A" Setting, Bounce Flash Card, Pricy, maybe a bit weaker than the old AF540

B h photo.34921152
3 August 2015
4.0/10

When it works ... it's great. They have a known problem where they just work when they want to. First trip to the shop it was covered ... after a few uses, it is now acting up again. I cannot rely on this flash. The shop Pentax told me to send to, it took FOREVER to get fixed.

Pentaxforums.34752456
1 November 2014
9.0/10

I'm surprised this flash isn't reviewed, it has been on the market for quite some time and it is really a very competent flash. It has every feature that you are likely to use as an amateur, the pentax system lacks a few things for studio use but you can't blame the flash for that.

  • +

    powerful, weathersealed, swivels in all directions, led light, size

  • -

    pricey

B h photo.34921152
20 December 2016
10/10

This flash works very well with my K-3 and has a wonderful throw for using with a soft box or using the remote infrared of the camera for off camera body use. The Pentax Ttl works wonderful and allows sync and light metering with the camera.

Pentaxforums.34752456
11 August 2017
9.0/10

I have this to replace 2 AF540FGZ.

  • +

    Solid built

  • -

    No red AF spot beam

B h photo.34921152
13 January 2016
10/10

Though I'm a dyed-in-the-wool Nikon man, my Pentax K-3 is my go-to camera for shooting outdoors on rainy days. I bought this to use for those situations when you need a fill flash outdoors, and it has performed well in initial testing.

Pentaxforums.34752456
16 February 2015
9.0/10

No doubt the best flash ever from Pentax. The learning curve is small, the menu system is well organized and easy to access settings.

  • +

    Solid Build, Compact, LED Catchlight, Ease of Use

  • -

    Expensive

Product Highlights
  • Weather resistant All Weather (AW) construction pairs perfectly
  • High Guide number for increased range & versatile flash performance
  • P-TTL mode with pre-flash allows
  • Constant light source for video or long exposure still photography
  • High speed on camera & high speed wireless flash is available in P-TTL modes
  • Flash exposure compensation through a simple control dial
  • LCD display shows the effective range of the flash
  • Made For Pentax
  • Shoe Mount Flash
  • AA Batteries
In The Box
  • Pentax AF-540FGZ II Dedicated Shoe Mount Zoom Flash
  • Flash Case O-AC141
  • Flash Stand for AF360FGZ II/AD540FGZ II Flashes
  • Pentax 1 Year Limited Warranty
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