Sigma EM-140 DG Macro Ringlight Flash for Canon EOS
55 mm and 62 mm Macro Flash Adapter Rings
Limited 1-Year North and South America Warranty Against Manufacturing and Workmanship Defects.
Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects
46' (14.02 m) ISO100 at 50 mm position
Angle of Coverage
80° Horizontal 80° Vertical
1/1 - 1/64
Approximately 4 - 6 seconds
4x AA Alkaline, Rechargeable NiMH Batteries
Ring Dimensions (WxHxD)
5.0 x 5.1 x 1.2" / 12.7 x 13.0 x 3.0 cm
Power Unit Dimensions (WxHxD)
3.0 x 5.4 x 3.2" / 7.6 x 13.7 x 8.1 cm
15.1 oz / 428 g Without batteries
Box Dimensions (LxWxH)
9.3 x 7.6 x 5.4"
The Sigma EM-140 DG Ring Flash 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 and Exposure compensation functions are also available for advanced flash photography.
Fully dedicated with E-TTL II Canon EOS cameras (A-TTL not supported)
Wireless TTL flash control (4 channels), with Manual Exposure possible
High Speed Synchro flash
Stroboscopic effect (power level and frequency customizable)
Information, prices and images are subject to change without notice. NJ Accessory is not responsible for typographical or illustrative errors. Manufacturer rebates, terms, conditions, and expiration dates are subject to manufacturers printed forms.