Good sigma em 140 dg macro ring flash for sigma slr cameras

1. Good Sigma EM-140 DG Macro Ring Flash for Sigma SLR
Cameras
Sigma EM-140 DG Macro Ring Flash for Sigma SLR Cameras
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Product By SIGMA
Technical Details
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
Guide number of 14 (ISO 100)

2. Ideal for close-up photography, especially medical and scientific applications
Product Description
The EM-140 DG Macro Flash is designed to work with both AF 35mm film and Digital SLR cameras of all-popular
manufactures. The EM-140 DG Ring Flash is ideal for photographing subjects in fine detail whenthe shadowless
mode is used and is extremely effective for scientific and medical applications. Dual flash tubes can fire
simultaneously or separately. Using only one flash tube creates shadow, which can give a three-dimensional
feeling to the subject. The flash features a guide number of 45 with 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-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.
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