Sony HVL-F45RM Compact External Radio Wireless Flash, Guide Number 147'
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Sony HVL-F45RM Compact External Radio Wireless Flash, Guide Number 147'

Price: $398.00



About Sony HVL-F45RM

Powerful yet compact

Radio wireless flash control for versatile shooting
Supply powerful lighting with the compact high-performance HVL-F45RM clip-on flash. Explore freedom of built-in wireless radio control in multi-flash settings and conventional optical wireless communication. Easy operation, excellent reliability, expert results — especially for enthusiasts of compact α E-mount interchangeable-lens cameras. Dust and moisture-resistant design.

Powerful compact with stamina

Dramatically downsized to fit the α E-mount cameras, this compact flash is as powerful as guide number 45. Recycle time is approx. 2.5 seconds, with flash output up to approx. 210 times

Multi-flash shooting via built-in radio wireless

With its built-in wireless radio-controlled system, the versatile HVL-F45RM can be used as either commander or receiver, supporting a wide range of shooting situations. As a commander, connect up to 15 units of compatible flashes or receivers in up to 5 groups. You'll appreciate wireless convenience and varied lighting for flashes placed at distances of up to 98.4 feet.

Radio-control connection with various types of off-camera units.
[1] HVL-F45RM (receiver / off-camera flash)
[2] FA-WRR1 (receiver) + compatible flash (off-camera flash)

Wireless control of up to 15 units in up to 5 groups.
[3] FA-WRR1 (receiver) + studio flash (via sync cable)
[4] HVL-F45RM (commander / on-camera flash)
[5] FA-WRC1M (commander)

Reliable and precise control in any setting

Radio signals enable stable connection over a wider shooting area (about 98.4 ft/30 m). Compatible off-camera flash units or receivers pick up radio signals — in bright light, around obstacles, and even when installed behind the camera. That means more consistent results without pairing errors.

Intuitive operation

Enjoy quick intuitive operation with tab menus just like that on the camera.

Quick Navi

One press of the 'Fn' button calls up the Quick Navi screen, letting you directly change settings.

Flexibly assignable custom function

Assign often-used functions to up, down, left, right & center keys, and control wheel for easy access.

Rotate head horizontally 360°

Flexible head rotates 180° left and 180° right for rapid bounce operation.

Tilt 150° upward and 8° downward

Use easy 150° up/8° down tilt adjustment, plus one-touch rearward bounce.

Support vertical shooting

Bounce flash is possible, even with the camera held in vertical composition.

Common features for uncommon lighting techniques

Control shutter speed and flash intensity for the precise effect you want.

  • Wireless multi-flash ratio control

Set intensity for each of up to three groups of wirelessly controlled flashes.

  • High-speed sync (HSS)

Flash can be synchronized to all shutter speeds — unlike conventional daylight sync, in which shutter speed must be equal to or slower than flash speed.

  • Advanced Distance Integration (ADI)

By acquiring accurate distance information between the lens and subject through TTL metering, ADI delivers precise flash intensity control that is not influenced by high or low reflectance of the subject or background.

Guide Number

Guide number changes according to zoom position. See the table below.
[1] Flash coverage setting (35 mm format) [2] Normal flash (1/1 power level) [3] High-speed sync (HSS) (shutter speed: s


Sony HVL-F45RM Specifications
Auto electronic flash (clip-on type) with pre-flash metering
Shoe type
Multi Interface Shoe
Maximum guide number
45m / 147 feet (Flash coverage setting 105mm, ISO100 m)
Flash coverage
AUTO/MANUAL (24mm-105mm)
Angle of view at 15mm focal length is also covered with the wide panel.
Flash mode
Flash duration
Approx. within 1.7ms (1/1 MANUAL)
Color temperature
Approx. 5500K
Color temperature
Approx. 5500K
Approx. 0.1-2.5 seconds (alkaline battery) /Approx. 0.1-2.0 seconds (Ni-MH battery)
Approx. more than 210 times (alkaline battery) /Approx. more than 270 times (Ni-MH battery)
Continuous flash performance
40 flashes at 10 flashes per second
Bounce flash
Bounce angle
Up 150 degree
Left and Right 180 Degree
Test flash
Flash control
Flash control using pre-flash (P-TTL/ADI)
Flash compensation
Power level switching
22 levels (1/1-1/128) 1/3 steps
Power level switching
22 levels (1/1-1/128) 1/3 steps
High-speed sync (HSS)
Modeling flash
Built-in wide panel
Yes (15mm)
Built-in bounce sheet
Radio controlled wireless flash
Yes (commander/receiver)
2.4 GHz band
14 channels (auto/manual)
14 channels (auto/manual)
Communication distance
Approx. 30m / 98.5'
3 groups (TTL/MANUAL), 5 groups (group flash photography)
3 groups (TTL/MANUAL), 5 groups (group flash photography)
Maximum flash units
15 units
Lighting ratio control
3 groups (TTL)
Lighting ratio control
3 groups (TTL)
Optical control wireless flash
Yes (controller/remote)*7
Communication distance*2
Approx. 5m*6
Center luminance intensity
Approx. 400 lx (0.5m) /Approx. 100 lx (1m)
Lighting distance
Approx. 1m (when recording movies, set to ISO 3200 & F5.6)
Focal length supported
35mm (35mm-format angle of view)
Continuous lighting time
Approx. 4 hours (with Sony AA-size alkaline battery)
Auto zoom control optimized for image se
Flash distribution setting
Auto WB adjustment
Custom key settings
Memory settings
LCD panel
Yes (dot matrix)
Multi/Micro USB terminal
Power source
Four AA-size alkaline or Ni-MH batteries
Dust and moisture resistant design
Dimensions (approx.)
69.4mm x 113.7mm x 88.3mm (2 3/4 in. 4 1/2 in. 3 1/2 in.) (W x H x D)
Weight (approx.)
317g (11.2 oz) (only main unit

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