Canon EF 28-80mm f3.5-5.6 II USM format_127 This is a modern 40mm

This is a modern 40mm f2 lens designed to look like an older Nikon pre-AI lens- it even has the little coupling ears- but with full AI compatibility and CPU contacts

The Contax auto extension tube set for Contax-Yashica mount includes one each of 13mm

Also included: battery

with only very minor internal dust

Honestly seems like a lot of engineering and manufacturing complexity for not a lot of payoff

Canon EF 28-80mm f3.5-5.6 II USM format_127 This is a modern 40mmThe Canon EF 28 80mm f3. 5 5. 6 II USM is a compact standard zoom lens for film or digital EF mount cameras. A convenient zoom range in a lightweight package, in excellent condition, with clean glass.