Nikon K Ring Set lens mount_Rollei QBM/SL Canon Extender EF 2x II

Canon Extender EF 2x II teleconverter

6L version II lens for EF mount

Compatible with Leica thread mount lenses (not included)

Uses standard 120 film

Nikon K Ring Set lens mount_Rollei QBM/SL Canon Extender EF 2x IIThe 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