San Diego's Complete Camera & Video Store. Where cameras, supplies, and good service come together!


 Nelson Photo Supplies

Where cameras, supplies and good service come together

3625 Midway Dr. Suite J, San Diego CA, 92110 | (619) 234-6621 



General questions

Photofinishing Questions


Product Specifications

Fujifilm  Shoe Mount Flash EF-20  

Main specs

Guide Number:  20 (ISO 100, m/ft)

Bounce Angle:  0, 45, 60, 75 and 90 degrees vertically

Dimensions:  Approx 43 mm x 61 mm x 88 mm


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Fujifilm-Shoe Mount Flash EF-20-Flashes and Speedlights



Approx 43 mm x 61 mm x 88 mm


Approx. 100 grams (excluding batteries)

Power Source

Two AA size lithium, alkaline or NiMH batteries

Type of Unit

Flash / Speedlight


Notable Features

  • Combining a compact design and efficient controls, the Fujifilm EF-20 Flashgun is the ideal for carrying in a pocket or bag and providing any additional lighting.
  • The hotshoe folds cleverly into the flash body to minimise space and simply rotates out when required for use.
  • With the guide number 20 (ISO 100-m) and operating TTL with the FinePix X100 and HS20EXRcameras, the EF-20 provides superb lighting for each shot. The in-built wide panel diffuser provides effective flash distribution while EV adjustment can be made up +/-1.0EV in 5 steps (-1, -0.5, 0, +0.5, +1).
  • Powered by 2 AA batteries, the quick charge time of approx. 4 seconds keeps the EF-20 ready for use.

Exposure / Flash Control


Guide Number

20 (ISO 100, m/ft)

Angle of Coverage

not specified

Bounce Angle

0, 45, 60, 75 and 90 degrees vertically

Shooting Distance (Zoom Range)

not specified

Recycling Time

Alkaline: 5 sec.
NiMH: 4 sec.

Battery Life

Approx. number of flashes: Alkaline: 200, NiMH: 280


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Nelson Photo - San Diego


3625 Midway Dr. Suite J

San Diego CA, 92110


Tel: (619) 234-6621 Email us


Store Hours

Mon - Fri

9:00am to 6:00pm


9:00am to 5:30pm


Noon to 4:00pm


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