Kaiser LED Ring Light R48
This is the only continuous light in our line-up, making it suitable for stills or video where extra subtlety is needed. Illumination comes from 48 LEDs split into two banks, which can be activated individually if desired. That’s the only fun feature on offer though, as the R48 doesn’t offer any other adjustment or customization options.
Using LEDs rather than traditional power-hungry flash tubes means the light’s compact hotshoe control unit is much smaller than the others, and is powered by just two AA batteries that should last around 2.5 hours – though an AC power unit (£46/$60) is also available.
The batteries provide enough juice to generate a respectable 1550 lux at 30cm, though this quickly drops off to just 165 lux at 1metre, making the R48 significantly weaker than the ring flashes on test. We also found the 6000K daylightbalanced LEDs produce a noticeable magenta colour cast, though the light is very soft, and almost completely shadow-free.
Pros Accessible price; no-frills ease of use; highly portable
Cons Relatively weak; limited adjustment and control
We say Acceptable for the cash, but falls short of a real ring flash