Flash
HVL-F28RM
Specifications
Flash unit
Flash interval/number of flashes
The number of flashes indicates the approximate number of flashes available with new batteries before they wear out.
Functions in this manual depend on testing conditions at our firm.
Design and specifications are subject to change without notice.
5-023-112-11(1) Copyright 2020 Sony Corporation
Flash control
Flash control using pre-flash (P-TTL/ADI metering)
Wireless method
Radio wireless method
Flash coverage
50 mm (24 mm when the built-in wide panel is used)
Continuous flash
performance
40 flashes at 10 flashes per second (Normal flash, flash power level 1/32, 50 mm, rechargeable
nickel-metal hydride batteries)
Operating temperature
0 °C to 40 °C (32 °F to 104 °F)
Storage temperature
–20 °C to +60 °C (–4 °F to +140 °F)
Dimension (w/h/d)
(Approx.)
65.1 mm × 83.5 mm × 91.4 mm (2 5/8 in. × 3 3/8 in. × 3 5/8 in.)
Mass (Approx.)
219 g (7.8 oz) (excluding the batteries)
Power requirements
DC 3 V
Recommended
batteries
Two AA-size alkaline batteries
Two AA-size rechargeable nickel-metal hydride batteries
Flash interval/number of flashes With alkaline batteries With nickel-metal hydride batteries
Flash interval (sec) (*1)
Approx. 0.1 - 6.4
Approx. 0.1 - 4.1
Number of flashes (times) (*2)
Approx. 110 or more
Approx. 130 or more
Minimum duration of time before the TEST button lights after the previous flash (Acquired under our measurement conditions.)
*1
Number of flashes at the highest flash power level available in every 30 seconds (Acquired under our measurement conditions.)
*2
46
