Really Right Stuff BH-55 with Lever-Lock Pan Clamp brand_Voigtlander 8 constant aperture and excellent

8 constant aperture and excellent compatibility: this D-type lens will mount and shoot on any Nikon F-mount SLR

all in a pocketable clamshell case

This Nikon drop-in gel filter holder fits the Nikon 600mm f4 AF Nikkor lens and other lenses which use 52mm-sized drop-in filter holders

If you're curious

lens has some coating wear

Really Right Stuff BH-55 with Lever-Lock Pan Clamp brand_Voigtlander 8 constant aperture and excellentReally Right Stuff's biggest ball head, the BH 55 is beautifully made and finished from high quality steel and aluminum, with a load capacity of 22kg. This BH 55 is in excellent cosmetic condition, with a few surface scuffs near its base. Ball lock is almost criminally effective, pan action on base and clamp is smooth. A fantastic large ball head suitable for nearly anything you might be able to throw at it. Base fitting is a standard 3 8" thread;