This is the famous "Russian" circular fisheye, although the usable field of view is more like 160 degrees versus 180. On a full frame dSLR or on fillm, the image circle created by the lens has a diameter larger than 24mm, so there is some cropping of the picture. In the case of 1.6 crop dSLRs, there remains some of the black circle edge in the pictures, although it is limited to the far corners. Fisheye distortion is still strong in the case of the 1.6 crop however.

The lens has an interchangeable mount and comes with a set of filters that screw onto the rear element. The rear element also protrudes rather far from the lens into the camera body, so in some cases there lies the possibility of damage to the mirror. It would be wise to check the compatibility of your camera with this. Some remove the rearmost element; this usually solves the problem, however the lens loses infinity focus.

At some point Belomo dropped 'Peleng' from the lens name, lenses from later batches are named 'Belomo EWP Fisheye Lens MC 3.5/8 A'.