User manual SIGMA EM-140 DG EO-ETTL

[. . . ] The advanced features of this flashgun allow you to enjoy AF Macro photography. Depending on the camera model, functions and operation may vary. To make the most of all these features, and to get the maximum performance and enjoyment from your flash, please read this instruction booklet, together with your camera's instruction manual, before using the flash, and keep it handy for future reference. In order to avoid causing any damage or injury, please read this instruction manual very carefully, paying attention to the cautionary signs below, before using the flash. [. . . ] press the + or - button to trigger only one side. (flash ratio will not be displayed and only firing side will blink) 3. press the SEL button several times to stop the blinking. If the flash ratio is set to 1:1 or the mode is changed, this function will be cancelled. b Type Cameras Flash ratio cannot be set. After shooting please press SEL button and then the + or - button. By doing this flash unit will be set to default mode, display will show both sides. By selecting the Tv mode of the camera, you can set the shutter speed from 30sec. When you set the desired shutter speed, the camera will select the appropriate aperture value for the background. If the subject is too light or too dark, the aperture value indicator will blink and show the limit values (maximum or minimum aperture). in such as case , the camera proceeds to take flash photograph at the limit value. Thus, the main subject in the picture may be exposed correctly, but the background will become under or over exposed. By selecting the Av mode of your camera, the camera will select the appropriate shutter speed for the background. If the subject is too bright or too dark, the shutter speed indicator will blink and show the limit highest or slowest shutter speed value. Thus, the main subject in a picture may be exposed correctly, but the background will become under or overexposed. When used with M Mode You can set the desired shutter speed and aperture value. If you adjust exposure according to the exposure meter indication, the camera will work as for Daylight synchronization flash or slow synchronization. To prevent overheating of the flash's circuitry, please do not use your Flash unit for at least 10minutes after using the number of flash exposures, shown in the below table have been made in quick succession. This mode cannot be used with EOS 700, 750, 850 cameras. The shooting in Manual Mode requires a very advanced technique. When using Manual Flash photography, first take some test shots. it will be beneficial to use a flash meter device for determining the exposure. [. . . ] After setting the left and right flashtubes' flash ratio, it is possible to set the compensation amount of slave 3 and take the picture. After confirming that both master and slave units are fully charged you can take the picture. It is possible to group more than one slave flash unit and fire them according to the flash ratio adjustment of the master unit. Slave unit's ID number 1 controls left flashtube (1), ID number 2 controls right flashtube (2). [. . . ]