STF-8 Macro Flash

Compact, lightweight, and versatile macro flash

Compact, lightweight, and versatile macro flash

The STF-8 broadens the field of macro photography while making shooting in macro easier. This twin-flash unit is compact, lightweight, dustproof, splashproof, and freezeproof down to -10℃. Use it along with an M.Zuiko PRO lens or macro lens to add another dimension to your photography.


Compact, lightweight, dustproof, and splashproof design for superb mobility

The STF-8 is compact, lightweight, dustproof, splashproof, and freezeproof down to -10℃, making it perfect for outdoor shooting. The included ring adapter is compatible with three M.Zuiko Digital lenses. It can also be attached to other lenses using a commercially available step-up/down ring.

Lenses compatible with the included ring adapter (as of February 2022)

  • M.Zuiko Digital ED 30mm F3.5 Macro
  • M.Zuiko Digital ED 60mm F2.8 Macro
  • M.Zuiko Digital ED 12-40mm F2.8 PRO
  • M.Zuiko Digital ED 12-40mm F2.8 PRO II

Guide numbers suitable for macro photography

Use both flashes for a guide number of 8.5 or one flash for a guide number of 6. You can shoot at the closest focusing distance (maximum magnification) when using a diffuser with compatible lenses

Compatible lenses (as of February 2022):

  • M.Zuiko Digital ED 30mm F3.5 Macro
  • M.Zuiko Digital ED 60mm F2.8 Macro
  • M.Zuiko Digital ED 12-40mm F2.8 PRO
  • M.Zuiko Digital ED 12-40mm F2.8 PRO II

Functions for controlling lighting

E-M1 Mark II + M.Zuiko Digital ED 60mm f/2.8 Macro + STF-8 (diffuser ON), 1/60 sec., f/11, ISO400

Movable flash heads

The angle of the flash heads can be adjusted in a range of 60° upward to 40° downward, and the position of the flash heads along the ring adapter can be adjusted as well. Arrange the flashes to create shadows and achieve your desired level of depth in your photos.

Output ratio control

The output ratio can be controlled from 1:8 to 8:1 between the left and right flash heads. Use the dial for quick output ratio adjustment.

Dedicated diffuser for soft lighting

A dedicated diffuser is included for creating soft lighting effects. The diffuser is designed so that you can select to use or not use it without having to attach or remove it every time.

Designed with working distance in mind

The flash heads are nearly even with the end of the lens for minimal effects on the lens working distance.

Delivering more versatile photography

Focus Stacking/Focus Bracketing compatible

The STF-8 can be used with popular features on the OM-1, such as Focus Stacking and Focus Bracketing.

  • Manual flash only

Freedom in lighting

The flash heads can be removed from the ring adapter for further freedom in lighting. For example, keep one flash on the ring adapter to light the subject, and remove the other to use for background lighting.

Wireless control

This flash unit is compatible with the wireless flash control. It can be used as the commander flash during multiple-flash photography.

Macro photography with a wide-angle lens

The STF-8 is useful in wide-angle macro photography that incorporates backgrounds into a close-up shot. Use this flash unit together with a fisheye lens or super-wide angle lens for a new style of close-ups.

  • A separately available third-party bracket may be required depending on the lens.
Complete control over lighting


Type Clip-on type TTL auto sync macro flash
Olympus wireless remote control flash system compatible (Commander function only)
Guide Number One flash: 6.0 (ISO 100•m),
Two flashes: 8.5 (ISO 100•m)
Firing Angle Vertical: approx. 61 degree, horizontal: approx.72 degree (flash head short side, long side/one flash, covers the angle of view of a 12mm (35mm equivalent: 24mm))
Left-right Light Intensity Ratio One head firing / Two heads firing (1:8 to 1:1 to 8:1)
Can be set using dial on flash
Included Diffuser Open/Close type
Flash Modes TTL-AUTO, Manual
Remote Control (RC) Flash mode: RC
Channel: 4
Group: 4 groups, independently controlled (3 slaves, 1 camera flash)
  • RC Commander function only
Flash Head Movement Angle Up/down facing: front 0°, upward facing 0° - 60°, downward facing 0° - 40°
  • Can be slid on adapter ring
Flash Time 1/1000 sec. or less
Display LED Charging display (orange), power display (green)
Power Supply Batteries / Recommended Batteries AA alkaline batteries: 4,
AA NiMH batteries: 4
Low Power Function Power automatically turns off after being left alone for approx. 10 min in sleep mode
  • Flash enters sleep mode when the connected camera enters sleep mode.
  • Stand-alone flash enters sleep mode after being left alone for approx. 5 min.
Flash Compensation Can be set on the camera
Manual Flash Full (1/1) to 1/128 (Can be set on flash / camera)
Charging Time [1] Approx. 4 sec. (when using AA alkaline batteries)
Approx. 4 sec. (when using AA NiMH batteries)
Flash Emission Count [1] Approx. 480 times (when using AA alkaline batteries)
Approx. 1330 times (when using AA NiMH batteries)
Operating Environment [2] -10 to 40°C
Splashproof Construction Splashproof
Size Controller: W 66.9 mm x H 59.1 mm x D 68.5 mm (excl. protrusions)
Flash: W 45.4 mm x H 39.7 mm x D 42.3 mm (excl. protrusions)
Weight 283 g (incl. Controller, flashes and cords, excl. Ring adapter, joints and batteries)
Box Contents Flash case, Two diffusers, ring adapters (φ46mm, φ62mm), Two joints, instruction manual, Warranty Card
  • 1. Measurements obtained from in-house tests at OM Digital Solutions, using new or fully charged batteries. Actual figures may vary depending on shooting conditions.
  • 2. Batteries may not withstand lower temperatures. In such environments, keep batteries warm prior to use.
  • Specifications are subject to change without notice.