Nikon K Ring Set brand_Argus 2 Brownie is about 100

2 Brownie is about 100 years old

The Panasonic Lumix DMC-80 is a tiny little digital camera

Canon's teleconverters are not general purpose: they will work specific lenses only

This is a round metal hood designed for the Nikon F 50mm f2 lens

Nikon K Ring Set brand_Argus 2 Brownie is about 100The Nikon K ring set is a stack of tubes and adapters that gives you the opportunity for all sorts of F mount shenanigans. The set includes the K1, which is a short F to F extension tube; the K2, with a lens side F mount and an inner 52mm thread; the K3, with a 52mm outer thread on one end and a camera side F mount on the other; and two 52mm threaded extension tubes. In its simplest form, it's an adjustable extension tube, but there are enough odd