PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing.

This $9 Canon Accessory Fixes a Problem I Thought Would Never Go Away

After years of complaints from photographers (including me), Canon has finally introduced a redesigned RF lens cap that fixes a small but persistent annoyance in everyday use.

 & Jim Fisher Principal Writer, Cameras

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology.

Our Expert
LOOK INSIDE PC LABS HOW WE TEST
65 EXPERTS
43 YEARS
41,500+ REVIEWS
(Credit: Jim Fisher)

It was an exciting moment when Canon switched away from SLRs to concentrate on its mirrorless EOS R camera system in 2018. Canon is arguably the biggest name in photography, and its decision to make a real commitment to mirrorless camera tech was a bellwether moment, and came just a couple of weeks after Nikon introduced its Z mirrorless system.

But there's been one pernicious problem with Canon's RF mount lenses that's irked me from the jump: The rear cap is a pain to attach. Most lens systems let you put the back cap on with a few different starting points, but with the RF, you need to line up the cap and lens perfectly to connect them. It's a weird thing to complain about, I know, but it makes the juggling act of changing lenses just a little bit harder to manage in practice. I almost always have to futz around to find the right connection point for the rear cap when changing RF lenses.

I griped about this in some of my older RF lens reviews, but eventually gave up the fight. But someone at Canon recognized the problem; it just took eight years. Canon is making a big camera announcement today, the video-focused EOS R6 V, but it's also sneaking in a new accessory, a redesigned rear RF lens cap with three index points, not just one. The cap costs $8.99 on its own, will be the standard for forthcoming lens releases, and will replace the single-index version on older lenses once current stock sells through.

My only question is: Why did this take eight years? Perhaps Canon noticed third-party 3D-printed replacements that also fix the indexing issue. It's a better late than never scenario, though. If you use a Canon RF camera and fumble around trying to find the right orientation for the rear lens cap when swapping lenses, you may not mind spending a bit of money on replacement caps. I think wedding photographers and other creators who frequently use their camera in dim interiors will find it worth the cost.

For the frugal, you can use a utility knife to modify the original cap. Just be careful—a trip to urgent care will cost you more than $9.

And for more on Canon, check out my list of top-rated Canon cameras and RF lenses.

About Our Expert

Jim Fisher

Jim Fisher

Principal Writer, Cameras

My Experience

Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 14 years, which has given me a front row seat for the changeover from DSLRs to mirrorless cameras, the smartphone camera revolution, and the emergence of drones for aerial imaging. I have extensive experience with every major mirrorless and SLR system, and am also comfortable using point-and-shoot and action cameras. As a Part 107 Certified drone pilot, I’m licensed to fly unmanned aircraft systems (UAS) for commercial and editorial purposes, and am knowledgeable about federal rules and regulations regarding drones.

The Technology I Use

I use all of the major camera systems on a regular basis, swapping between Canon, Fujifilm, L-Mount, Micro Four Thirds, Nikon, and Sony systems. I still find time to use Leica M rangefinders and Pentax SLRs on occasion, too. I keep an iPhone 13 in my pocket for the rare occasions I'm not carrying a camera.

I'm not a brand-specific photographer. For product review photos, I swap between a Canon EOS R5 and a Sony a7R IV. I use Flashpoint and Godox TTL lights and Peak Design tripods, and I most often reach for a Think Tank or Peak Design backpack to carry equipment.

When it comes to computers, I'm an unapologetic Mac person and have been for the past 20 years. I write in Pages and use Numbers for spreadsheets. I currently swap between an Intel i9 MacBook Pro and an Apple Silicon Mac Studio for writing and use a calibrated BenQ 32.5-inch with the Studio for photo and video editing. I rely on a LaCie 6big RAID for media storage. I also keep a PC around for gaming, but please don't tell my Macs about it; they'll get jealous.

I split time between several different software apps depending on the type of editing I'm doing. For Raw image processing, Adobe Photoshop Lightroom Classic is my standard. I pair it with a LoupeDeck CT console to supplement my keyboard and trackpad, and I lean on RNI All Films 5 presets when I want to give an image a film look. I use Apple Final Cut Pro for video editing.

My first digital camera was the Canon PowerShot Elph S200, and my first DSLR was the Pentax *ist DL. I have a soft spot for antique film gear. I still use a 1950 vintage Rolleiflex Automat TLR and love trying mid-century Leica lenses on film and digital alike. I mainly use whatever's in front of me for review for digital snaps, but I pick up either my Leica M Typ 240 or Pentax K-3 III Monochrome when I want to step away from review work. In my downtime, I enjoy bird watching, reading, video games, and both good and bad movies, especially in the sci-fi and horror genres.

Read full bio