Pentax AF-540 FGZ review
AF540FGZ Flash Featuring a large guide number of 54 (at ISO100/m), the
AF540 FGZ auto zoom flash offers 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.
P-TTL mode with pre-flash allows for more accurate flash photography.
Wireless P-TTL flash is available when used with PENTAX DSLR cameras that
support wireless flash operation.
On-camera and wireless high-speed flash sync is available in P-TTL modes.
Flash exposure compensation is easy through a simple control dial.
Bounce flash function, with adjustable angles of –10 to 90 degrees
vertically and up to 180 degrees horizontally.
Includes an autofocus assist beam for focusing in low light or low contrast
situations.
Auto and Manual modes allow for use with non-TTL PENTAX 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.
External power supply with the optional TR Power Pack-3