Sony HVL-F20M External Flash with Multi Interface Shoe and Built-In Diffuser - Compatible with Alpha TTL System

Sony HVL-F20M: Picture 1 thumbnail Sony HVL-F20M: Picture 2 thumbnail Sony HVL-F20M: Picture 3 thumbnail Sony HVL-F20M: Picture 4 thumbnail Sony HVL-F20M: Picture 5 thumbnail

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Sony HVL-F20M: Picture 1 regular $148.00

About Sony HVL-F20M

Expand your creativity with your Alpha NEX-6 interchangeable lens camera or Alpha a58K DSLR camera and the HVL-F20M external flash. This compact and lightweight flash extends the illumination range beyond the camera's built-in flash and includes Sony's multi-interface shoe for expanded compatibility.

Bounce flash enables shadowless indirect lighting while TTL (through the lens) flash exposure is automatically controlled by your camera for easy and intuitive operation. There's also a built-in diffuser which is ideal for wide and telephoto shooting.

Extends flash range beyond camera's included flash
Though compact and lightweight, the HVL-F20M has a maximum range twice that of the included flash units of the NEX-6 or SLT-A58K and includes Sony's new Multi Interface shoe for expanded compatibility. This is represented as the guide number (GN) of 20 with a 50mm focal distance.

Easy intuitive operation
Unlike most external flash units, the HVL-F20M has no dedicated ON/OFF switch. Instead, power is automatically switched on simply by raising the flash unit into the shooting position. In addition, a switch on the side of the unit quickly moves the flash from direct to bounce, making it easy to obtain flash illumination that suits the shooting situation. A charging lamp indicates when the flash is ready to fire.

Bounce flash enables shadowless indirect lighting
When set to indoor shooting mode, the flash po ints up to bounce light off the ceiling for shadowless illumination of your subject. When set to the outdoor shooting mode, the flash directs light directly at your subject.

ADI Flash Metering System
The ADI (Advanced Distance Integration) flash metering system offers the optimum flash metering and automatic white-balance compensation regardless of the background conditions or the subject's reflectance. ADI flash metering works in combination with cameras and lenses that incorporate a distance encoder. When used with these lenses, the camera calculates a guide number to control TTL (through the lens) flash metering. This guide number is calculated according to distance from the subject, ambient light and pre-flash reflectivity of the subject and the background.

Built-in diffuser for wide and telephoto shooting
With the built-in diffuser, the flash illumination covers a wider angle of view or if users want to to shoot at a greater distance, they can rotate the dial on the side of the flash unit to the Tele' Position. While the 'Tele" setting reduces the width of flash coverage, it extends the range to illuminate more distant subjects.

Sony HVL-F20M Features

  • Extends flash range beyond camera's built-in flash
  • New Multi Interface shoe for expanded compatiblity
  • Bounce flash enables shadowless indirect lighting
  • TTL flash exposure automatically controlled by alpha DSLR
  • Easy intuitive operation
  • Ultra-compact design folds flat when not in use
  • Elegant and attractive styling
  • Built-in diffuser for wide and telephoto shooting
  • Soft carrying pouch included

Sony HVL-F20M Specifications

Flash Modes
Bounce Upward angle: 75 degrees
Flash Coverage
GN20 = up to 20 meters (65 ft) at ISO100 with 50mm lens
Guide Number
Number of Flashes
More than 90 times (Alkaline battery)
Power Source
2 x AAA Batteries; Alkaline, NiMH
Battery Type
AAA Alkaline /AA Ni-MH - requires 2
Polycarbonate plastic
Flash Mode
Automatic Light Control
Storage Temperature
-4 to +140°F (-20 to +60°C)
Dimensions (WxHxD)
2.5 x 4.5 x 0.9" (62 x 114 x 24mm)
3.7 oz (105g)
Mfr #

Sony HVL-F20M Reviews

Reviewed by 2 customers


Does not work with A7


from Seattle, WA  -  Photo Enthusiast

No matter what I tried on A7: P, Auto, Bounce, Direct, whatever its just over overexpose and camera reports 'accessory is not supported'.


Nice compact flash


from Los Angeles, CA  -  Casual Photographer

Bought this for my A7. It is very small and lightweight and has everything I expected. Highly recommended.


Questions & Answers Powered by TurnTo®

Questions about this item:

jesus r  will this unit work with the alpha 7?
RICHARD P  I use the HVL-F20M on my Sony A7R and it works fine.
An V  I got a Sony HVL F20AM and a friend of mine gave me an Adapter Sony ADP-MAA for Multi Interface Shoe for my A7R with FE SEL 55F18Z.When I take a picture,the image is blurred and shade.Pleas tell me why?
CURTIS W  I do not know. I use mine with the RX100 camera very well. Maybe the flash did not fire resulting in blur and only existing light capture. Try it again and see if it flashes. There might also be an issue of waiting for flash to charge up before taking picture. Perhaps customer has problem other than the flash unit such as focus setting.
Shopper  Will this unit work with sony alpha 500 DSLR?
CURTIS W  I do not have that camera so can not say fro sure. Could call Sony for support. It works great with my RMA-100 V2. Curt
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