Pentax AF540FGZ features Flash Modes: P-TTL auto, TTL auto, auto, manual; Bounce Head up to (-10º, 0º, 30º, 45º, 60º, 75º, 90º); Zoom Head at 24-85mm (20mm w/ wide angle diffusor, flash senses focal length automatically); Focal Length Coverage: 24-85mm (20mm w/ wide angle diffusor); Flash Range: 2.6′ – 26.3′ (GN 54, ISO 100, F5.6); Flash Control: TTL-series-control auto flash, manual flash; Flash exposure compensation: In P-TTL mode, -3.0 to +1.0 steps (0.5-steps increments); Swivel Head: Right: (0º, 30º, 60º, 90º, 120º, 150º, 180º) and Left: (0º, 30º, 60º, 90º, 135º); Discharge Angles: 31-78 degrees horizontal, 23-60 degrees vertical (98 degrees horizontal, 85 degrees vertical with wide angle diffusor). The Pentax AF540FGZ measures 3.0″ x 5.6″ x 4.2″ and weighs 13.04 oz. (without batteries).
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Pentax AF540FGZ User Reviews
Gift was perfect!!
“Im not too experienced with cameras but my cusin is a professional photographer. This item was on his christmas list so I thought I would get it for him. It was shipped and recieved within days:) Long story short, He loves it! “ – By Daniel Richard
A lot of functionality in a camera mounted flash
“I’ve owned this unit since March 07 and have used it sparingly. The performance to date is as advertised and impressive for a camera mounted flash unit. However, the mounting arrangement incorporates a metal spring loaded ‘lock pin’ which fits into a receptor hole in the camera hot-shoe.” – By Donald G. Fraser
“Great features and the remote feature is awesome. The smart zoom functions quite well and auto recognizes the use of internal defusers. All in all, a great flash.” – By JC
“Very capable flash. Great value when compared with after market units for Pentax DSLR’s. Features like auto zoom that matches the lens focal length, wireless remote operation and P-TTL auto flash with trailing curtain sync make this flash a bargain at twice the price. “ – By David Quesnette
Works like a charm
“For an amateur like myself, this has been a blessing. Having never worked with an off camera flash or a camera mounted auxillary flash, the guide along with some online sources has really helped me to let this flash enlighten my gallery. “ – By Michael Morgan
AF540FGZ Flash by Pentax
“The flash is everything I expected and more. The wireless mode works flawlessly in typical Pentax fashion. It’s quite easy to use, easier than I expected it to be. Very powerful and the P-TTL system works very well. I’d recommend this flash to all Pentax camera owners whose camera uses the P-TTL exposure control system. “ – By J. Hausmann
Pentax AF540FGZ Expert Reviews
Pentax AF540FGZ User Manual
– Download Pentax AF540FGZ User Manual (PDF – 2.2MB)
Pentax AF540FGZ Features & Specifications
Featuring a large guide number of 54 (at ISO100/m), this clip-on-type auto-zoom flash provides a variety of advanced flash applications, including P-TTL auto flash, high-speed synchronization and wireless P-TTL auto flash, when mounted on a Pentax SLR camera.
Large guide number
Despite its compact dimensions and clip-on design, the AF540FGZ auto flash offers a large guide number of 54 (at ISO100/m) to accommodate a wide range of flash applications.
Advanced auto flash functions
The AF540FGZ features a variety of flash functions, including advanced P-TTL auto flash in which a pre-emission from its spotbeam projector is detected by the camera’s light sensor to accurately control the main discharge level needed for proper illumination of the subject. Other functions include TTL auto flash, auto flash, manual flash, high-speed synchronization and wireless P-TTL.
Auto discharge-angle adjustment
When mounted on a Pentax autofocus SLR (after the Z-10 and including digital-format models) equipped with an FA-, FA J-, DFA- or DA- series lens, the AF540FGZ automatically adjusts its angle of discharge to the lens’ focal length (automatic function may not be available for certain combinations of a camera body and a lens).
* “Digital” position newly provided on the focal-length conversion scale of the zoom head to accommodate digital SLRs.
* Bounce flash function, with adjustable angles of -10 to 90 degrees vertically and up to 180 degrees horizontally.
* Power-zoom flash head to cover angles of view for 24mm to 85mm lenses (in 35mm format).
* Built-in wide-angle panel that slides out to cover 20mm angle of view (in 35mm format).
* Built-in catch-light panel, which is useful and effective in portrait photography
* External power supply with the optional TR Power Pack II.
* Battery-saving auto power-off function (user cancellation possible).