EOS R Lens Adaper EF-EOS R with circular polarizer

Brand new, unopened. Just became available and $299 everywhere. I'd like $250.

Connect an EF or EF-S lens to your EOS R camera using the Drop-in Filter Mount Adapter EF-EOS R, expanding your available lens options while also providing the ability to add a drop-in filter to your photographic endeavors. This drop-in filter adapter lets you utilize a circular polarizing filter, and because it's one size fits all, there's no need to purchase multiple filters to fit various lens diameters. The Drop-in Filter Mount Adapter EF-EOS R's matching design means smooth connections while a rugged, dust- and water-resistant construction adds to its flexibility, making it easy to have a choice of lens and filter for virtually any shooting situation.


Features

Mount Adapter Allows EF/EF-S Lens Compatibility with the EOS R Camera.
Drop-in Filter Adapter Allows Use of Circular Polarizing Filters.
Dust- and Water-resistant.
Exterior Design Matched to EF Lenses.
Metal Mount on Both Lens and Camera Sides Provide Rugged Flexibility.

Will consider partial trade for standard lens adapter. Will ship.

UPDATE:

Pay by Zelle (or in person, of course SF Bay Area) and I'll make this $240 shipped (20% off) for a fast sale AND it comes from an authorized dealer and has the one year warranty.

I would trade for the standard adapeor plus cash from you or a new or like new RF 24-105 and cash from me.