Asahi M42 Auto Extension Tube Set brand_Manfrotto with several improvements in function-

with several improvements in function- most notably an improved bright-frame viewfinder with framelines for the 80mm lens

but I assume that it's some kind of SEO thing

The date function does not appear to work

Well now you have

but it does work

Asahi M42 Auto Extension Tube Set brand_Manfrotto with several improvements in function-This Asahi extension tube set includes three M42 thread mount extension tubes: roughly 9mm, 19mm, and 29mm, for a total of about 57mm extension when combined. These are auto diaphragm tubes with a stop down passthrough system. In excellent condition, with only very minor paint wear. Includes original leather case.