Let me introduce you to an excellent vintage lens, production of the USSR.
 
 Industar-69 28mm F/2.8 USSR Wide Angle Pancake Lens for Canon RF mount, Infinity focus!

The lens has been serviced, cleaned and lubricated. Ready to use.

The Industar-69 28 mm f/2.8 is a fast, wide-angle prime lens for the Chaika half-frame camera.

The photo is of the actual item for sale!

May be of interest to owners of compact mirrorless cameras with interchangeable lenses. 
It can be used on Zorki / Leica, but taking into account the fact that the distance scale on the lens will need to be marked differently. In this case, strong vignetting will be observed, since the lens is designed for a half-frame camera.
It should be borne in mind that the working distance of the systems do not match (27.5 mm for Chaika, versus 28.8 mm for Leica).

This lens has been modified for the Leica / Zorki working distance, so it can be installed without problems on any mirrorless camera.
The minimum focusing distance limiter has also been removed, which makes it possible to focus at a distance of 0.4 meters (as opposed to the standard 0.8 meters).

This instance comes with an M39-Canon RF adapter, but it is possible to replace it with another adapter, for example Canon EF-M, Sony NEX, Micro 4/3, Fuji X, etc. (Check availability via the feedback form).

On full-frame cameras, strong vignetting will be observed.

See the photos, made by me the same lens on a Sony NEX camera, APS-C!

Included is the front cap, adapter for Canon RF mount.
The lens is supplied with new accessories.

Item specification:
Lens mount: M39 - Canon RF
Working distance: 28.8 mm
Frame format: Half frame (24x18)
Focal length: 28mm
Relative aperture: 1:2.8
Scale of diaphragms: from 2.8 to 16
Diaphragm: Manual
Focusing range: from 0.4m to infinity

Condition:
It's in Good Working Condition. External condition can be estimated from the photo. Front and rear lenses are clean, but the lenses has a couple of minor micro-scratches, invisible to the naked eye. There are a few dust particles inside. No fungus. The diaphragm-control ring turns smoothly and accurate. The focusing turns smoothly and precise.

Payment:
Payment should be sent within 3 days after purchase. Otherwise I can't guarantee availability of the item. 
I'm not responsible for any customs tax that can be charged in a country of delivery. Please, get known the customs rules in your country before bidding.

Shipping Policy:
Shipping from Ukraine. Shipping available Worldwide. I'll ship via registered airmail during 1-3 working days after payment is received. Item are carefully packed usually with bubble wrap in carton boxes.

Don't worry, delivery from Ukraine works as usual! All parcels are shipped from Kyiv on time, however, delivery times depend on transport companies that transit outside of Ukraine. In any case, all parcels are delivered. There may be delays, but this has nothing to do with events in my country!

Save on shipping! When buying multiple items, shipping is combined! I recalculate the shipping cost and issue an invoice for payment, taking into account the total weight of the package.

Return Policy:
Item must be returned within 14 days after the buyer receives the item. Shipping fee will not be refunded. All items must be return in original conditions without any physical changes with all of its components.
Return shipping charges are the sole responsibility of the customer.

Thank's for looking my store!

If you have any questions - Please ask! I will try to answer in detail!

Please see my other offers! There are many interesting items!