I ordered this K&F Concept 79mm Handheld Subtle Kaleidoscope Filter to use in special situations.

I have another kaleidoscope filter from K&F Concepts that screws onto a lens. While I do like the effect, it's sometimes a bit over the top. This handheld filter offers a lot more control, because you can cover as much or as little of your lens as you like.

My largest lens requires an 82mm filter. Even though this filter at its widest point is only 79mm, it will reach to the edge of the lens because of the way it is designed. Holding the filter at an angle, or moving it futher and closer to the lens, produces some interesting effects.

This is not the sort of thing that you are going to use every day. But when faced with an otherwise uninteresting scene, you may find that this filter will liven things up. As with just about every other K&F Concepts product, you'll also get a stack of cleaning cloths with this filter. It also comes in a nice plastic case that will protect it from getting scratched when you toss it into your camera bag.

The glass that this filter is made of is quite thick. You'll find that it has a noticeable effect on the sharpness of your images.