Sigma EM-140 DG Macro Ring Flash for Nikon AF


  • For Nikon i-TTL Speedlites
  • Guide No. 46′ (14 m) ISO 100
  • Dual Flash Tubes
  • Modeling Flash & Slave Light Function
  • High-Speed Synchro

On Backorder

SKU: 5574 Categories: , , Tag:

The Sigma EM-140 DG Ring Flash for Nikon AF cameras is ideal for photographing subjects in fine detail – close-up photography – and is extremely effective for scientific and medical applications.

Dual flash tubes can fire simultaneously or separately. Using only one flashtube creates modeling, which can give a three-dimensional feeling to the subject. The Modeling Flash function makes it possible to check for reflections and shadows before actually taking the flash picture.

A wireless flash function is also available, where the EM-140 DG is used as master and the EF-500 DG Super as a slave unit for creating fine shadow details. High Speed Synchro functions are also available for advanced flash photography.

55mm and 62mm adapter rings are included with the flash; 52mm, 67mm, 72mm and 77mm adapters are sold separately.

  • Fully dedicated with i-TTL/D-TTL with Nikon photo or Digital cameras
  • Wireless TTL flash control (4 channels)
  • High Speed Synchro flash
  • Stroboscopic effect (power level and frequency customizable)
  • Modeling light, also provides AF assist
  • Backlight illuminated LCD panel
Package Weight 2.3 lbs
Package Dimensions 9.3 x 7.6 x 5.4 in
Power Source

4x AA Alkaline, Rechargeable NiMH Batteries

Filter Thread


Box Dimensions (LxWxH)

9.3 x 7.6 x 5.4″


15.1 oz / 428 g Without batteries

Ring Dimensions (WxHxD)

5.0 x 5.1 x 1.2″ / 12.7 x 13.0 x 3.0 cm

Angle of Coverage

80° Horizontal 80° Vertical



Recycle Time

Approximately 4 – 6 seconds

Modeling Light



1/1 – 1/64

Package Weight

2.3 lb

TTL Dedication


Side Wings


Power Unit Dimensions (WxHxD)

3.0 x 5.4 x 3.2″ / 7.6 x 13.7 x 8.1 cm

Guide No.

46′ (14.02 m) ISO100 at 50 mm position


There are no reviews yet.

Be the first to review “Sigma EM-140 DG Macro Ring Flash for Nikon AF”