Sony HVL-F20M Digital Camera Flash for Sony A7 / A7R / NEX-6 / A6000

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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.



Mount Shoe
Guide No. 65.62' (20 m) ISO100 
Exposure Control TTL
Angle of Coverage Not Specified By Manufacturer
Vari-Power Not Specified By Manufacturer
TTL Dedication Yes
Bounce Head Yes, +0° to +75°
Recycle Time Not Specified By Manufacturer
Flash-ready Indicator Yes
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
Weight 3.88 oz / 110 g
SKU 5174
Barcode # 027242866737
Brand Sony

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Supplied With

  • Sony HVL-F20M External Flash
  • Multi Interface Shoe Connector Cap
  • Soft Carrying Pouch