I acquired a collection of 35mm cameras, lenses and some accessories that I have no knowledge of (Never used 35mm cameras), so I will detail what I know. Any questions, please ask prior to your purchase. Buy more than 1 lens, and receive a 10% refund back. 

Here we have a Used Vintage "Vivitar Automatic Extension Threaded Tube 3 Piece Set = AT-1 36mm, 20mm, 12mm  - Made in Japan". - . great cosmetic Condition, but are used so has some very mild usage wear.  (See All photos for condition of actual item as we gave you a lot to look at from every angle to attest to the actual condition) NO DAMAGE. 

Please verify that this will work for your set up prior to purchasing..  

Great Item - Do not have camera to test on.

A Wonderful Item at a great price. 

We have sold well over 5,000 Film Camera's to date with great customer satisfaction, and many repeat buyers..

Please visit Our eBay store at the above link for even more great Camera's.

We do combine shipping on multiple items.

Please let Us know if you have any questions, and Thank You for your continued interest, support and business.