Really Right Stuff BD850 set brand_Walz Leitz E60 UVa filter (13381)

Leitz E60 UVa filter (13381) in excellent condition

Lensmate advises against using this with an X100F

The B+W 110 ND 3

The Nikon TC-17EII is an autofocus teleconverter designed for select Nikon AF-S telephoto lenses (here's Nikon's compatibility list)

a compartment for a laptop up to 15-ish inches

Really Right Stuff BD850 set brand_Walz Leitz E60 UVa filter (13381)This Really Right Stuff BD850 set includes the BD850 baseplate and BD850L vertical component. This is a genuine RRS part, so you can probably guess that its solid and well made, but its also got some unexpected touches, like an adjustable sliding vertical component that can be extended to provide extra vertical height or protect cables, and built in hex key stowage (with included keys!) In excellent condition.