Elinchrom RF3000 Ringflash Handling
The RF3000 is a big beast compared with the range of hot shoe connecting ringflash units you may have seen in your local camera store. This is because it's a pro-spec model designed for fashion and portraiture, while the Vivitars, Sunpaks and Cobras of the world are more appropriate for close up and macro work.
The principle is the same. The flash is a circular tube that is mounted over the lens on the camera so you shoot through the hole. This type of flash concentrates the illumination for high contrast or high key lighting while ensuring almost shadowless light.
The advantage of a flash like this Elinchrom is that its larger ring gives a less direct light with more modeling and the halo catchlight is larger and more pronounced.
The unit is capable of delivering 3000W/s output at full power, which means you get an aperture of f/22 at two meters away. Compared with your portable units with the guide number of between 10 and 15 it means this is roughly four times more powerful! And that's noticeable when you fire it at full blast. You can joke with the model that you are about to fry her.
more : ephotozine
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