We think this is a 12 inch lens but there is no markings to identify it.

Warranty: This is a consignment item that is being sold as is

Operating Condition: Used Bargain.  

Cosmetic Condition: This is an old lens. dent in the front hood, separation on the back element and internal dust 

FREE SHIPPING to Canada and USA on most orders over $200. This item ships from our location in Perth, Ontario Canada. Local  pickup in Perth can be arranged and is always free. We have many items that are not listed online. Please inquire.