CanonNews / Saturday, December 15, 2018 / Categories: Canon Patents Canon Patent Application: EF to RF Soft focus adapter Keith from Northlight discovered this patent application which describes a soft focus adapter for EF lenses to RF mount. While it doesn't explicitly mention RF or EF adapter, it's a full frame adapter, with a registration distance of 22 to 33mm, so it stands to reason it would be tailored for the RF mount. As we have seen with the three EF to RF adapters already in existence for the Canon RF mount, it comes as no surprise that Canon is looking at every possible way of adapting EF lenses, to provide and "added value" to the older EF ecosystem onto the newer RF system. US Patent Application 20180356617 PhotoLumeur Christmas Bundle Special! Ebay one day only deal 10-15% off Print 3220 Tags: Canon Patent Application RF Adapters More links Northlight Related articles Patent Application for Canon RF 16-28mm F2.8, 16-28mm F2.8-4 and 16-28mm F4 designs Canon Patent Application: High Magnification Super Telephoto Zooms Canon Patent Application: Curious Catadioptric Optical System Canon Patent Application: Drone Camera Assembly Canon Patent Application: Canon RF 130mm F2.0 Please enable JavaScript to view the comments powered by Disqus.blog comments powered by Disqus