Nikon Nikkor-SW 90mm f/8 air 4 head is an old-school

4 head is an old-school all-metal tripod head with three-way adjustment

but has a slight vertical misalignment

and clean diaphragm

mechanical action is smooth

Nikon Nikkor-SW 90mm f/8 air 4 head is an old-schoolNikon Nikkor SW 90mm f 8 in excellent condition. This is a relatively compact wideangle lens for 4x5", with enough image circle for 5x7" as well. Convenient 67mm filter thread and ample room for movements with 4x5". Mounted in a Copal 0 shutter, healthy throughout its range of speeds. Aperture is smooth and glass is free of issues. Good cosmetic condition with some paint loss and corrosion on the shutter speed ring and cocking arm. Includes a #0