Vivitar SF3000 features Recycle Time 8.0 sec with fresh alkaline batteries at full power; Flash Duration 1/1000 sec, up to 1/20000 sec at auto settings. The flash uses 2 x 1.5V AA batteries which lasts for about 200 flashes (Alkaline batteries). The Vivitar SF3000 measures 6.7 x 3 x 2.25″ (17.01 x 7 x 5.71cm) and weighs 11.64 oz (330 g) (without batteries).
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Vivitar SF3000 User Reviews
Handy and worthwhile addition
“I use it as a slave fill flash with my Sony A900 and its dedicated flash. It does a good job of filling in and minimizing red-eye. It doesn’t weigh much and it works well. A pair of fully charged NiMH batteries doesn’t last too long, but I’d rather carry around more batteries and get more light. My only complaint is that the “ready” light is very dim.” – By Rufus
Vivitar SF3000 Expert Reviews
Vivitar SF3000 User Manual
Vivitar SF3000 Features & Specifications
The powerful (Guide Number 110′ @ ISO 100) yet affordable SF-3000 Digital Slave Flash from Vivitar is a sturdy unit with selectable firing and built-in digital slave circuitry. Plus, it has 3 power levels to give you control over light output, and features a switch on the back which allows you to select between the two different triggering modes, making it compatible with any camera on the market.
Ordinary slave units do not work with many digital cameras because these cameras use a very rapid set of pre-flashes to set the white balance of the camera’s image sensor chip but not the exposure. The slaves will typically fire on the pre-flash it senses, while the digital camera captures the image on the last flash. Thus, the extra light from the slave does not show up in the digital camera photo. The SF-3000 flash units are designed to fire on a flash, sensed by their built-in optical sensor and circuitry, so the effect of the flash is not lost.
• Slave flash for cameras with a hot shoe
• Works with any digital camera
• 8.0 seconds recycle time
• 200 flashes on fresh set of 2 AA alkaline Batteries
• Weighs only 11.64 oz without batteries