An Einstein Ring is essentially when light from a galaxy or star passes another galaxy or a massive object en route to Earth. Because the large object’s gravity bends the light, it creates ...
Some Ring home security cameras - namely those with built-in lights - are also able to record color video at night, provided the light has been set to illuminate when motion is detected.
A ring flash has the additional advantage that it can provide enough light to allow you to stop down the aperture enough to get your whole subject in focus. The built-in flash on your camera won't cut ...