The Olympus BCL-15mm f8.0 Body Cap Lens serves as a body cap when carrying the camera around without its interchangeable lens, and transforms to become a pan-focus snapshot lens to capture images. The lens is so thin - just 9mm thick - that it can easily be mistaken for a camera-mount body cap. With three glass lens elements in three groups, it can be used as a wide-angle lens equivalent with a single focal length of 30mm (35mm camera equivalent).
In addition to daily use as a "pan-focus" lens featuring a wide angle, fixed f8 aperture and shallow depth of field, it is compatible with manual focusing using a lever and capable of close-up shooting as close as 30 cm. A lens-protection barrier is provided sothe lens can be mounted permanently on the camera and even put in a pocket together with the camera.
The Olympus 15mm F/8 is popular because customers like the following qualities of the Olympus 15mm F/8: Easy to use and Lightweight.