External Flash for NEX CamerasGuide Number: 20ADI Flash Metering SystemBuilt-in DiffuserExpand your creativity with your Alpha NEX interchangeable lens camera and the HVL-F20S external flashThis external flash extends the illumination range beyond the camera's included flashBounce flash enables shadowless indirect lighting while TTL (through the lens) flash exposure is automatically controlled by your Alpha NEX camera for easy and intuitive operationThere's also a built-in diffuser which is ideal for wide and telephoto shootingExtends flash range beyond camera's included flash:Though compact and lightweight, the HVL-F20S has a maximum range twice that of the included flash units of the NEX-3, NEX-5, and NEX-C3 camerasThis is represented as the guide number (GN) of 20 with a 50mm focal distanceBounce flash enables shadowless indirect lighting:When set to 'indoor' shooting mode, the flash points up to bounce light off the ceiling for shadowless illumination of your subjectWhen set to the 'outdoor' shooting mode, the flash directs light directly at your subjectBuilt-in diffuser for wide and telephoto shooting:With the built-in diffuser, the flash illumination covers a wider angle of view or if users want to to shoot at a greater distance, they can rotate the dial on the side of the flash unit to the 'Tele' PositionWhile the 'Tele' setting reduces the width of flash coverage, it extends the range to illuminate more distant subjectsEasy intuitive operation:Unlike most external flash units, the HVL-F20S has no dedicated ON/OFF switchInstead, power is automatically switched on simply by raising the flash unit into the shooting positionIn addition, a switch on the side of the unit offers Indoor and Outdoor settings, making it easy to obtain flash illumination that suits the shooting situationA charging lamp indicates when the flash is ready to fireADI Flash Metering System:ADI (Advanced Distance Integration) flash metering system offers the optimum flash metering and automatic white-balance compensation regardless of the background conditions or the subject's reflectanceADI flash metering works in combination with Alpha cameras and lenses that incorporate a distance encoderWhen used with these lenses, the camera calculates a guide number to control TTL (through the lens) flash meteringThis guide number is calculated according to distance from the subject, ambient light and pre-flash reflectivity of the subject and the backgroundSpecifications:Flash Coverage: F4: 1m -5m Guide Number: 20 Dimensions (Approx.): 2 3/8 x 2 7/8 x 2 1/8inches; 60 x 71 x 53mm (WxHxD) Weight(Approx) (Main unit only) : 2.3oz (63g) Also in the Box:Soft carrying case Wide PanelProtective connector cap
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