GN46 Wireless Radio Control External Flash
Compact GN46 flash supports the latest camera technology
This compact high-output GN46 flash unit delivers levels of sophistication and camera communication that only Sony can offer, offering reliable flash at high continuous shooting speeds and sync at shutter speeds up to 1/400 s. Outstanding durability, intuitive operation via the camera, flexible bounce angle adjustment and wireless radio communication add refined control and versatility.
Intelligent communication with the latest α bodies
α Lighting System has evolved in parallel with α camera bodies to give creators optimum illumination in a wide range of applications. A level of integration that is only possible with original Sony products achieves detailed communication with compatible camera bodies for reliable and precise light control.
 Flash processor  Multi Interface Shoe  Image sensor  Image processor
Intelligent communication maximizes image quality
Stable GN46 output for a wide range of lighting needs
Because the HVL-F46RM is designed by Sony, it can communicate with α camera bodies to deliver consistent GN46 light output that meets professional lighting needs. Focal lengths from 24 mm (15 mm with the wide panel) to 105 mm are supported.
Flash control linked to camera face detection
With a compatible camera, white balance is automatically adjusted so that the subject’s face is rendered with natural colour. The HVL-F46RM works with a compatible camera face detection to provide ideal lighting for the main subject, even in groups.
Auto white balance accuracy that only original equipment can achieve
Thanks to in-house design, this advanced flash unit transfers colour temperature data to the camera where that data is used to precisely adjust white balance so that colours are rendered naturally in any situation.
Light output optimized for focal length and image size
The flash illumination angle is automatically adjusted to match the focal length of the lens used over a 24–105 mm range. Light distribution is also adjusted for optimum illumination with full-frame or APS-C format.
Fast recycle and dependable high-speed continuous flash
Advanced electronics and construction contribute to fast recycle times and allow continuous flash shooting for extended periods of time. A set of four batteries can provide power for more than 320 flashes with 2.0 second recycle time.
Innovative overheating prevention for longer shooting sessions
The use of heat resistant materials plus an optimized flash algorithm provides higher resistance to overheating that allows continuous shooting for longer periods of time. The HVL-46RM uses the same algorithms as the flagship HVL-F60RM2, achieving approx. 1.7x greater overheating resistance than the HVL-F45RM so you can shoot without being interrupted by heat issues.
Intelligent communication boosts speed
Stable high-speed continuous flash shooting
With a compatible camera the HVL-F46RM can continuously provide flash for up to 60 frames in high-speed bursts at up to 10 fps. Missed frames dues to flash sync failure are avoided, providing stable continuous shooting support.
Up to 1/400 s shutter sync with a compatible camera for new expression
Used with a compatible camera body the HVL-F46RM allows flash sync up to 1/400 s. This makes it possible to deemphasize the background while using flash to illuminate the main subject, illuminate moving subjects against a bright background and more.
Per-frame P-TTL flash control adapts to changing light
When used with a compatible camera, high-speed control sequencing in the camera uses pre-flash to control each individual flash during continuous bursts, even when tracking fast-moving subjects in scenes where the light changes dramatically.
Minimal flash trigger time lag
When using the HVL-F46RM in combination with a compatible camera, time lag between pressing the shutter button and flash output is significantly reduced so that fleeting moments can be captured with confidence.
Intelligent communication enhances operability
Flexible bounce angle adjustment
This feature makes it possible to quickly angle the flash head 180 degrees to the left or right, 150 degrees up, or 8 degrees down, for easy bounce angle adjustment to match any subject and shooting environment.
Comprehensive control from compatible cameras
Flash compensation, ratio and other parameters can be controlled directly from a compatible camera. A camera custom key can be used to call up the flash display for easy adjustment while looking through the viewfinder.
Dot-matrix display and custom keys for efficient operation
The same display tab format as the camera makes operation easy and intuitive. The Quick Navi display provides status info plus direct access to important parameters, with assignable arrow key, control wheel and custom key input.
Higher reliability and operability
Metal shoe foot with rugged side frame
A metal shoe foot with rugged side frame significantly increases the strength and durability of the Multi Interface Shoe and its electrical contacts.
Enhanced dust and moisture resistance
A dust and moisture resistant design contributes to high reliability in outdoor conditions. Shoe sealing achieves even greater dust and moisture resistance with certain α series bodies.
Versatile radio wireless communication
Stable wireless radio communication is ensured at distances up to 98.4 ft (30 m). Reliable, error-free communication is achieved even around reflectors and obstacles. Slow sync, rear-curtain sync and multi flash are supported.
Wireless radio control for up to 15 flash units
Control up to 15 flash and/or receiver units in 5 groups. The HVL-F46RM can communicate with flash units that do not feature wireless radio communication via the optional FA-WRC1M commander and/or FA-WRR1 receiver.
 Commander Function  Receiver Function
Follow the link below for lens/body compatibility details.
*105 mm at ISO 100 in metres/STD flash distribution.
Guide number changes according to zoom position. See the table below.
 Flash coverage setting (35 mm format)  Normal flash (1/1 power level)
 Hi-speed sync (HSS) (shutter speed: s)  When the wide panel is attached
Specifications and Features
- Shoe type
- Multi Interface Shoe.
- Continuous flash performance
- 60 flashes at 10 flashes per second
- Power source
- Four AA-size alkaline or Ni-MH batteries