{"id":1593,"date":"2026-08-13T16:35:09","date_gmt":"2026-08-13T16:35:09","guid":{"rendered":"https:\/\/www.kevindavisphoto.com\/blog\/?p=1593"},"modified":"2026-08-13T16:35:09","modified_gmt":"2026-08-13T16:35:09","slug":"migrating-from-canon-ef-to-canon-rf","status":"publish","type":"post","link":"https:\/\/www.kevindavisphoto.com\/blog\/migrating-from-canon-ef-to-canon-rf\/","title":{"rendered":"Migrating from Canon EF to Canon RF"},"content":{"rendered":"\n

Upon purchasing an R-series camera body last year that uses the RF lens mount, I did not replace all lenses at the same time. I bought an EF-to-RF adapter. which allows using old lenses on the new camera body. One of the old lenses that I did not replace was an EF 17-40 mm. This summer, I bought an RF wide zoom lens to replace it.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The photo here shows a physical size comparison. The 14-35 focal range is similar to the EF lens that I had been using but is a bit different. I do wish the RF lens included 40mm. In time, I will likely learn to really value the extra wideness of 14mm.<\/p>\n\n\n\n

The red line around the lens indicates an “L” series lens. And note that RF lenses with RF mount include an extra control ring at the front, which is configurable. So, an L zoom has three rings (focus, zoom, function).<\/p>\n\n\n\n

RF zooms that include wide angle focal length:
RF 14-35 mm f\\ 4.0 L
RF 15-35 mm f\\ 2.8 L
RF 24-70 mm f\\ 2.8 L
RF 28-70 mm f\\ 2.0 L
RF 24-105 mm f\\ 4.0 L
RF 24-105 mm f\\ 4-7.1
RF 24-240 mm f\\ 4-6.3<\/p>\n\n\n\n

Additionally, Canon offers a few RF-S zooms with wide angle. Additionally. These lenses are made for camera bodies with smaller sensors, such as R7, R10, and R50 cameras. RF-S lenses will fit onto camera bodies designed for RF (EOS R6, R5, R3, R, R8, and RP) without requiring any adapter but the image will be cropped and give the image an appearance like a longer focal length. An 18mm RF-S lens on an R7 captures an image as you would expect for 18mm, but on an R6 would give a result like 28 mm.<\/p>\n\n\n\n

Similarly, Canon’s older EF generation includes EF lenses and EF-S lenses. However, an EF-S lens will not fit onto a full-frame camera body designed for EF lenses.
<\/p>\n","protected":false},"excerpt":{"rendered":"

Upon purchasing an R-series camera body, I did not replace all lenses at the same time<\/p>\n","protected":false},"author":2,"featured_media":1594,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,4,71],"tags":[],"class_list":["post-1593","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-camera","category-equipment","category-lens"],"_links":{"self":[{"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/posts\/1593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/comments?post=1593"}],"version-history":[{"count":1,"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/posts\/1593\/revisions"}],"predecessor-version":[{"id":1595,"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/posts\/1593\/revisions\/1595"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/media\/1594"}],"wp:attachment":[{"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/media?parent=1593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/categories?post=1593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kevindavisphoto.com\/blog\/wp-json\/wp\/v2\/tags?post=1593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}