Prism effect filter for photographic lens ɸ 52.
The product arrives well protected inside a rigid plastic box and inside it is completely wrapped in a foam seat; in addition to the filter, in the package we find 3 microfiber cloths for cleaning the lens.
Bought for my Nikon D5200, it fits perfectly both on the standard 18-55 lens and also on the 55-200, it is really very easy to assemble and does not cause the slightest disturbance during use, it is possible to mount the lens hood very quickly, this applies to both the snap-on and bayonet ones.
I mainly use it to take photos in the evening or at night to be able to make the most of the filter effect.
The effect we receive when photographing light sources is as if a prism were illuminated or even more "jokingly" it is like an "astigmatism" effect, which gives a particular tone to the photos.
K9 glass guarantees high light transmittance and equally high color rendering, ensuring a clear and quality image.
Made of sandblasted aerospace aluminum alloy, the matte finish also prevents reflections and the penetration of diffused light, ensuring a really high grip and you also have the possibility of being able to rotate the filter thanks to an integrated bearing and the rotation is fluid and gives enough resistance to the movement that helps us to make a fluid movement in the case of filming rather than photographing.
The part of the filter that screws onto the lens is also equipped with teeth along the entire circumference in order to maximize the grip during assembly/disassembly; on the front part, however, there is a seat to attach the lens cap.
The only flaw: with entry level cameras or with lenses that have a low brightness, if you use it in the evening/night you could have problems with the automatic focus.
In conclusion: excellent product, recommended!