Sekonic Studio Deluxe L-28C2 (Lumigrid only) brand_Kirk and the use case is

and the use case is pretty narrow

This is a rectangular metal hood intended for Konica 35mm lenses with 55mm filter threads

and the legs feature an easy to use levelling ball with a flat plate- suitable for this video head or any other standard stills head (not included)

we don't recommend using this flash on digital cameras)

A good quality full-frame 180 degree fisheye lens compatible with film and digital cameras

Sekonic Studio Deluxe L-28C2 (Lumigrid only) brand_Kirk and the use case isThe Sekonic Studio Deluxe L 28C2 is a classic battery free light meter. These normally include a dome (for incident light measurement) and a Lumigrid for reflected light measurement; this one includes only the Lumigrid. It's otherwise is very good condition, with minor cosmetic wear, accurate readings.