Sekonic Studio Deluxe III L-398A viewing filter It accommodates either an extra

It accommodates either an extra EN-EL15 battery or 6 AA batteries with the included trays (the batteries are sold separately)

4 lens is designed for pre-AI Nikon F mount cameras- so it'll mount to those

The DR-5 rotates 360 degrees and has switchable 1x/2x magnification for more precise focusing

Included is a quality Olympus M

so you can give it a spin for kicks if you're into it

Sekonic Studio Deluxe III L-398A viewing filter It accommodates either an extraThe Sekonic Studio Deluxe III L 398A is a classic battery free light meter for reflected and incident light metering. In excellent condition, with only minor cosmetic wear. Includes dome and flat diffuser for incident light measurement, Lumigrid for reflected light, original case, and box.