User manual SIGMA EF-610 DG ST EO-ETTL II

[. . . ] If the Ready Lamp does not blink, it indicates that the flash light was not sufficient for that particular situation. The AF Auxiliary Light will turn on automatically as you focus on a dark area. Note: Effective distance is up to about 0. 7 to 9 meter (2. 3-29. 5 feet). When the flash is fully charged, the flash mark will appear in the finder. [. . . ] 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. Do not use this flash unit on any camera other than the Canon EOS series cameras; otherwise the flash may damage the circuitry of these cameras. When using the flash and camera in the rain or snow or near water, keep it from getting wet. It is often impractical to repair internal electrical components damaged by water. Never subject the flash and camera to shock, dust, high temperature or humidity. When the flash is subjected to sudden temperature change, as when the flash unit is brought from a cold exterior to warm interior, condensation might form inside. In such a case, place your equipment in a sealed plastic bag before such a change, and do not use the flash unit, until it reaches room temperature. Do not store your flash in a drawer or cupboard etc. , containing naphthalene, camphor or other insecticides. Do not use a thinner, Benzene or other cleaning agents to remove dirt or finger prints from the component. For extended storage, choose a cool dry place, preferably with good ventilation. It is recommended that the flash be charged and fired several times a month, to maintain proper capacitor functioning. DESCRIPTION OF THE PARTS (fig. 1) 1. Flash Head 2. AF Auxiliary Light 3. Shoe Ring 4. Shoe 5. Bounce Angle; Up and Down 6. Swivel Lock and Release Button; Right and Left 7. Bounce Angle; Right and Left 8. Battery Cover 9. Flash Coverage Angle Indicator 10. Bounce Lock and Release Button; Up and Down 11. TEST Button 12. Ready Light 13. Power Switch 14. Catch Light Panel 15. Wide Panel MANUAL FLASH OPERATION (Except EOS700, 750, 850) This flash unit can be used in Manual Mode at full power and at 1/16 power. Slide the flash unit's Power Switch to MH (full flash power) or to ML (1/16 flash power). Focus on the subject and set the camera's F-stop, using the exposure calculated by the formula shown below: F-stop = Guide Number (G. N. ) ÷ Flash to Subject Distance (m) 4. After the flash is fully charged, press he Shutter Release button to take the picture. Guide Number will change according to the Zoom Head position, (seechart. 2). Guide Number will also change according to film speed (ISO), (seechart. 3). In the case of non-ISO100 speed films, multiply thechart. 3number by thechart. 2number. For example, using ISO200 film, Zoom Head position for 24mm and the MH mode; multiply the chart. 3 number "1. 4" by the chart. 2 number "34. 0": 34. 0×1. 4=47. 6. If flash to subject distance is 8. 5 meters: F-stop = 47. 6 ÷ 8. 5 = 5. 6 (5. 6 is the F-stop to set on the camera. ) When repeatedly using the flash rapidly in the MH mode, it should be allowed to "rest" for about 10 minutes after each 20 flashes. If used under the same conditions in the ML mode, the flash should be allowed to "rest" after each 40 flashes. ABOUT THE BATTERY This flash unit uses four "AA" type Alkaline dry cell batteries or Ni-Cad, Ni-MH, rechargeable batteries. [. . . ] Please press the "Test Button" to be sure that the flash is working properly. If the battery power is not sufficient, or if there is an electronic information error, the flash coverage angle indicator will blink to indicate the condition. BOUNCE FLASH When you take a photo with flash in a room, sometimes a strong shadow will appear behind the subject, if you point the flash head upwards or sideways to reflect the light off the ceiling, wall etc. Press the lock button and adjust the flash head to set the bounce angle (fig. 7). UP: 0°, 60°, 75°, 90° DOWN: 0°, 7° RIGHT: 0°, 60°, 75°, 90° LEFT: 0°, 60°, 75°, 90°, 120°, 150°, 180° Please refer to the following chart. ATTACHING AND REMOVING THE FLASH TO AND FROM THE Without Wide Panel With Wide Panel Bounce Flash (exclusive downward by 7°) Zoom coverage angle will be set to the 50mm position. [. . . ]