HVL-F20M External Flash

USD $132.00
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The Sony HVL-F20M External Flash is an on-camera flash that supports the use of the Sony Alpha TTL system and is compatible with Sony's Multi Interface shoe. When compared to the built-in pop-up flash of many cameras, this flash helps to extend the effective flash working distance by providing a guide number of 65.6' / 20m at ISO 100. Additionally, this flash can serve as a wireless controller for triggering an off-camera flash.

For controlling the flash exposure the Advanced Distance Integration (ADI) flash metering system works in collaboration with Alpha cameras and lenses that feature an integrated distance encoder to intelligently produce balanced results. By accounting for the subject-to-camera distance, as well as ambient light and subject reflectivity, the ADI system works to control the flash output in order to provide precise, consistent flash exposures.

A built-in diffuser helps to control the spread of the flash; when enabled the spread is wider to suit working with wide-angle lenses, and when disabled the flash beam is narrower and longer to benefit working with telephoto lenses. Additionally, the head can tilt between 0-75° for bounce applications and greater control over the direction of the flash.
  • Guide No. 65.6' / 20m at ISO 100
  • Compatible with Sony Alpha TTL System
  • ADI Flash Metering System
  • Multi Interface Shoe Connection
  • Can Be Used as Wireless Controller
  • 0-75° Bounce Head
  • Built-In Diffuser
  • Wide and Tele Flash Settings
  • Compact, Flat-Folding Design
In The Box
  1. Sony HVL-F20M External Flash
  2. Soft Pouch
Guide No.
65.62' (20 m) ISO100
Exposure Control
Angle of Coverage
Not Specified By Manufacturer
Not Specified By Manufacturer
TTL Dedication
Bounce Head
Yes, +0° to +75°
Recycle Time
Not Specified By Manufacturer
Flash-ready Indicator
Wireless Transmission
Not Specified By Manufacturer
Wireless Communication Channels
1 Channels
Wireless Groups
1 Groups
Power Source
2x AAA Alkaline, Rechargeable Ni-MH Batteries
Dimensions (WxHxD)
2.4 x 4.5 x 0.9" / 62.0 x 114.0 x 24.0 mm
3.88 oz / 110 g