Sigma Macro Flash
- Brand: Sigma
- Subject: Accessories
- Category: Flash Units
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Photokina report
The Sigma Corporation is pleased to announce the new Electronic Flash Macro EM-140 DG for Sony and Pentax cameras. Electronic Flash Macro EM-140 DG is designed to work with both AF 35mm film and Digital SLR cameras. The Sigma EM-140 DG Macro Flash is ideal for photographing subjects in fine detail when the shadowless mode is used and is extremely effective for scientific and medical applications. Dual flash tubes can fire simultaneously or separately. Using only one flashtube creates shadow, which can give a three-dimensional feeling to the subject. The flash features a guide number of 14 w/ISO 100. The Modeling Flash function makes it possible to check for reflections and shadows before actually taking the flash picture.

Sigma EM-140 DG wireless flash
A wireless flash function is also available, when the EM-140 DG is used as master and the EF-530 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.
Optional accessories
Macro Flash Adapter 55mm (Included)
Macro Flash Adapter 58mm (Included)
Macro Flash Adapter 52mm
Macro Flash Adapter 62mm
Macro Flash Adapter 67mm
Macro Flash Adapter 72mm
Macro Flash Adapter 77mm
Sigma Macro Flash EM-140 DG features
Power Source : 4pcs AA Alkaline Battery or AA NiCd Battery or AA Ni-Mh Battery
Angle of Coverage : Vertical / Horizontal 80 degrees
Weight (without batteries) : 430g / 15.2oz.
Dimensions (Controller) : 76.7mmx136.2mmx82.4mm / 3.0in x 5.4in x 3.2in
Dimensions (Flash Unit) : 126.6mmx128.8mmx30.5mm / 5.0in x 5.1in x 1.2in
Sony AF compatibility
TTL auto : ADI/DI(P-TTL)/TTL
Right/left power ratio : 1:8-8:1
Exposure compensation : Settable by camera body
Manual flash
Multiple flash
Modeling flash
Rear-curtain synchro flash
High-speed synchro (FP)
Sony AF Wireless Flash
TTL auto : only controller
Right/left power ratio : 1:8
Exposure compensation : Settable by camera body
High-speed synchro (FP)
Channel setting
Pentax AF compatibility
TTL auto : P-TTL/TTL
Right/left power ratio : 1:8-8:1
Exposure compensation : 1/2step -3.0 - +1.0EV
Manual flash
Multiple flash
Modeling flash
Rear-curtain synchro flash
High-speed synchro (FP)
Pentax Wireless Flash
TTL auto
Right/left power ratio : 1:8
Exposure compensation : 1/2step -3.0 - +1.0EV
High-speed synchro (FP)
Channel setting