2008 Photokina Tradeshow
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The following is an unedited press release, shown as received from the company represented. We've elected to present selected releases without editorial comment, as a way to provide our readers more information without further overtaxing our limited editorial resources. To avoid any possible confusion or conflict of interest, the Imaging Resource will always clearly distinguish between company-provided press releases and our own editorial views and content.

Sigma's Electronic Flash Macro EM-140DG for Sony and Pentax. Courtesy of Sigma, with modifications by Michael R. Tomkins. PRESS RELEASE: Multifunctional Macro Flash designed to work with new Digital SLR cameras.


ELECTRONIC FLASH MACRO EM-140 DG for Sony and Pentax

  • Ideal for Close-up photography, especially medical and scientific applications
  • Fully dedicated with the latest TTL auto exposure systems
  • Flash tubes can be switched on or off for creative flash control
  • Wireless Flash Control
  • High Speed Synchro Flash

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 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.

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.

ELECTRONIC FLASH MACRO EM-140 DG for Sony and Pentax
MACRO FLASH ADAPTER (55mm, 58mm) included

Sigma's Electronic Flash Macro EM-140DG for Sony and Pentax. Courtesy of Sigma, with modifications by Michael R. Tomkins. Click for a bigger picture!

OPTIONAL ACCESSORIES
MACRO FLASH ADAPTER 52mm
MACRO FLASH ADAPTER 55mm (Included)
MACRO FLASH ADAPTER 58mm (Included)
MACRO FLASH ADAPTER 62mm
MACRO FLASH ADAPTER 67mm
MACRO FLASH ADAPTER 72mm
MACRO FLASH ADAPTER 77mm

Main Specifications

Guide Number 14 ISO 100/m (when the flash is fired at full power)
Power Level 1/1 1/2 1/4 1/8 1/16 1/32 1/64
2 tubes 14 10 7 5 3.5 2.5 1.8

Power Source AA Alkaline Battery or AA NiCd Battery or AA Ni-Mh Battery x 4pcs
Angle of Coverage Vertical / Horizontal 80 degrees
Weight 430g (without batteries) 15.2oz.
Dimensions (Controller) 76.7mm x136.2mm x 82.4mm / 3.0in x 5.4in x 3.2in
Dimensions (Flash Unit) 126.6mm x128.8mm x30.5mm / 5.0in x 5.1in x 1.2in

Compatibility with AF SLR and Digital SLR Cameras
  Sony AF Pentax AF
TTL auto ADI/DI(P-TTL)/TTL P-TTL/TTL
Manual flash OK OK
Multiple flash OK OK
Modeling flash OK OK
Right/left power ratio 1:8 - 8:1 1:8 - 8:1
Exposure compensation function Settable by camera body 1/2step -3.0 - +1.0EV
Rear-curtain synchro flash OK OK
High-speed synchro (FP) OK OK
Wireless flash - TTL auto OK (Only controller) OK
Wireless flash - Right/left power ratio - 1:8 ~ 8:1
Wireless flash - Exposure compensation function Settable by camera body 1/2step -3.0 - +1.0EV
Wireless flash - High-speed synchro (FP) OK OK
Wireless flash - Channel setting OK OK
Changing of the firing both flashtubes or only one flashtube OK OK


(First posted on Tuesday, September 23, 2008 at 02:01 EDT)

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1 $300 Adorama Gift Certificate

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