Nikon Nikkor-S Auto 5cm f2 brand_Stearman Press The Nikon PK-12 is a

The Nikon PK-12 is a 14mm extension tube for manual focus F-mount lenses

The Canon 24-105mm f4L IS II USM lens is a good quality full-frame all-around lens with a useful focal length range from wide angle to short telephoto- plus a constant f4 aperture and an image stabilizer

cosmetic condition is decent

and the focusing isn't the fastest- but if you're into what this lens does

with clean optics and excellent function

Nikon Nikkor-S Auto 5cm f2 brand_Stearman Press The Nikon PK-12 is aThis Nikon Nikkor S Auto 5cm f2 (Pre AI) is in excellent condition with only minor cosmetic wear. This lens is an early 7 element 5 group design, with later six bladed diaphragm. Distance scale exclusively in meters. Smooth focus and glass is great for its age with only moderate dust. Both a unique historical piece and a great everyday user.