Sony HVL-F45RM External Flash with Wireless Radio Control


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Sony HVL-F45RM External Flash with Wireless Radio Control

  • Sony HVL-F45RM External Flash with Wireless Radio Control
  • Connector Protection Cap
  • Mini-stand
  • Carrying Case

From The Wavelength Blog Read more

Sony HVL-F45RM External Flash with Wireless Radio Control

Sony's HVL-F45RM External Flash with Wireless Radio Control is a powerful yet compact flash designed for Sony E-mount cameras. Its bounce head rotates 360 degrees horizontally and also tilts 150 degrees upward and 8 degrees downward so you can fine-tune illumination based on the environment you’re shooting in. This flash also allows photographers to wirelessly control up to 15 other flash units in up to 5 groups from 98 feet. Because the unit uses radio waves as well as optical wireless communication, it functions in broad daylight and without requiring line-of-sight. Adjusting settings and operating the unit is easy thanks to Sony’s Quick Navi control interface and tab-based menu structure displayed on an easy-to-read LCD screen.

Built-In Wireless Radio Control

Thanks to this flash’s radio control system, photographers can place clusters of flash units anywhere they want, including behind furniture or in other rooms, without worrying about maintaining line-of-sight for operation. The use of radio frequencies also means you can use the unit outdoors in direct sunlight which isn’t possible with traditional infrared units. Now you can experiment with nearly limitless lighting set-ups and all you have to do is remain within 98 feet of the flash groups you want to control.

Small but Powerful Lighting Capability

The HVL-F45RM is designed specifically for Sony’s smaller E-mount cameras, but the flash’s compact design doesn’t sacrifice the functionality of larger models. It has a guide number of 45 and a recycles in approximately 2.5 seconds for powerful illumination when you need it. It also has an LED light for constant lighting while recording video or shooting stills.

Bounce Head for Flexible Lighting

HVL-F45RM bounce head for flexible lighting rotates 360-degree horizontally (180-degree in both left and right directions) and also tilts 150-degree upward and 8-degree downward, providing the illumination you want depending on shooting situations.

High-Speed Sync

Take advantage of synced flash with a high-speed shutter. Whereas conventional sync shooting requires that the shutter speed be the same or slower than the synced flash speed, the aperture would be narrowed, making it difficult to get background bokeh effects. But with high-speed sync (HSS) you can use flash with any shutter speed, even up to the highest shutter speed provided by the camera. This allows you to increase the aperture as needed to create a narrow depth of field that keeps your subject in perfect focus while the background blurs, for beautiful portraits. Wireless high-speed sync is also possible with compatible cameras.

Through-the-Lens (TTL) Wireless Flash

Even when performing wireless flash shooting, flash output can be determined based on accurate measurement of the amount of light through the lens. Since you can freely change the position and direction of the flash unit exactly as you want, it's possible to soften intense shadows and suppress blown highlights when shooting a subject from right in front (of the subject), or add soft shadows that emphasize a sense of depth and presence. Wireless flash ratio control is available.

Advanced Distance Integration (ADI)

ADI provides automatic metering that is virtually unaffected by the reflectance of subjects or backgrounds, maintaining correct exposure even with overly reflective or overly dark subjects. It pre-flashes the unit to incorporate the reflected light measurement, together with precise distance information from a compatible camera's lens, to achieve the optimum flash level.

Multi/Micro USB Port

This flash features Multi/Micro USB port for supporting software updates to the latest version via connected PC.

Sony HVL-F45RM External Flash with Wireless Radio Control


  • Type: Auto electronic Flash (clip-on type) with pre-Flash metering
  • Shoe type: Multi Interface Shoe.

Flash Head

  • Maximum guide number: 45 (Flash coverage setting 105 mm/STD Flash distributions, ISO100・m)
  • Flash coverage: Auto/Manual (24 mm–105 mm) angle of view at 15 mm focal length is also covered with the wide panel
  • Flash mode: TTL/Manual/Multi
  • Flash duration (approx.): Within 1.7 ms (1/1 Manual)
  • Color temperature (approx.): 5,500K
  • Frequency (approx.): 0.1-2.5 seconds (Alkaline battery)/0.1-2.0 seconds (Ni-MH battery)
  • Repetition (approx.): More than 210 times (Alkaline battery)/ more than 270 times (Ni-MH battery)
  • Continuous flash performance: 40 flashes at 10 flashes per second
  • Bounce flash: Yes
  • Bounce angle: Up 150 deg (0 deg/30 deg/45 deg/60 deg/75 deg/90 deg/120 deg/150 deg) Down 8 deg, Left and right 180 deg (0 deg/30 deg/45 deg/60 deg/75 deg/90 deg/120 deg/150 deg/180 deg)
  • TEST flash: Yes
  • Flash control: Flash Control using pre-Flash (P-TTL/ADI)
  • Flash compensation: Yes
  • Power level switching: 22 levels (1/1-1/128) 1/3 steps
  • High-Speed Sync (HSS): Yes
  • Modeling flash: Yes
  • Built-in wide panel: Yes (0.59 in)
  • Built-in bounce sheet: Yes

AF Illuminator

  • AF illuminator: Yes
  • Operating range (approx): 1.64-19.69 feet

Radio-Controlled Wireless Function

  • Radio control wireless function: Yes (commander/receiver)
  • Frequencies: 2.4 GHz band
  • Channels: 14 Channels (Auto/manual)
  • Communication distance (approx): 98.43 feet
  • Groups: 3 groups (TTL/Manual), 5 groups (group Flash photography)
  • Maximum flash units: 15 units
  • Lighting ratio control: 3 groups (TTL)

Optical Control Wireless Function

  • Optical control LED wireless flash: Yes (Controller/remote)
  • Channels: 4 Channels
  • Communication distance (APPROX.): 16.4 ft
  • Groups: 3 groups
  • Lighting ratio control: 3 groups (TTL)

LED Light Function

  • Center luminance intensity (approx.): 400 lx (1.64 ft)/100 lx (3.28 ft)
  • Lighting distance (approx.): 3.28 ft (when recording movies, set to ISO 3200 & F5.6)
  • Focal length supported: 35 mm (35 mm-format angle of view)
  • Continuous lighting time (approx.): 4 hours (with Sony AA-size alkaline battery)
  • Color temperature (approx.): 5,500 K
  • Power level switching: 10 steps

Other Functions

  • Auto zoom control optimized for image sensor size: Yes
  • Flash distribution setting: Yes
  • Auto WB adjustment: Yes
  • Custom key settings: Yes
  • Memory settings: Yes


  • LCD panel: Yes (Dot matrix)
  • External connectors
  • Multi/Micro USB terminal: Yes

Power Source

  • Power source: Four AA-size alkaline or Ni-MH batteries

Other Features

  • Dust and moisture-resistant design: Yes
  • Dimensions (approx.) (W x H x D): 2-3/4 x 4-1/2 x 3-1/2 inch (69.4 x 113.7 x 88.3 mm)
  • Weight (approx.): 11.2 oz (317 g) (only main unit)

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