Sony HVL-F45RM Operating Instructions Manual page 56

Radio wireless features:
Frequency band: 2.4 GHz
Number of channels: 14 channels
Communication distance: Approximately 30 m (98.4 ft.) (Acquired
under our measurement conditions.)
• The distance given above applies under conditions where there are
no obstacles, shielding, or radio wave interferences.
• The communication distance may be shorter depending on the
positioning of the products, the ambient environment, and weather
conditions.
Frequency/Repetition
Frequency (sec)
Repetition (times)
• Repetition is the approximate number of times that are
possible before new batteries are completely dead.
Flash control
Continuous flash
performance
AF illuminator
56
GB
Approx. 0.1 - 2.5
Approx. 210 or more
Flash control using pre-flash (P-TTL/ADI)
40 flashes at 10 flashes per second
(Normal flash, power level 1/32, 105 mm, nickel-
metal hydride battery)
Autoflash at low contrast and low brightness
Operating range (While a 50mm lens with the
aperture set at F5.6 is attached and [AF LED LEVEL]
of the flash unit is specified as [HIGH])
Central area (Approx.): 0.5 m to 6 m (1 ft. 7 3/4 in. to
19 ft. 8 1/4 in.)
Peripheral areas (Approx.): 0.5 m to 3 m (1 ft. 7 3/4
in. to 9 ft. 10 1/8 in.)
Alkaline
Approx. 270 or more
Nickel hydride
Approx. 0.1 - 2.0