The filter is a well-made, geodesic dome that projects outward from the lens. It is a moderately hefty piece of glass – quite a bit heavier than my UV or other filters. The filter has a threaded ring to attach the filter to a lens and a second ring that is used to rotate the filter when it is attached. The filter includes a nice case to securely hold the filter when not in use, and also came with three micro-fiber cleaning cloths.

The effects are cool and fun. I was able to get different kaleidoscope effects by zooming in and out with my lens; by placing the subject off-center in the frame; and by varying the distance between the lens and the subject. Rotating the filter rotates the halo of subjects surrounding the main subject.

The attached guinea pig photos were all taken with the filter attached to an 18-105mm APS-C lens. The distance from the lens to the subsect was about 2-1/2 feet to 3 feet. At this distance, the widest angle provided the least amount of kaleidoscope effect, with the kaleidoscope effect changing as the focal length narrowed. The distance from the lens to the subject can impact the distance between the center subject and the halo of subjects that surround the subject, with the halo of subjects moving further from the center subject as the distance increased.