Canon Canon L Canon - RF100-500mm F4.5-7.1 L IS USM Telephoto Review
The autofocus on this lens is magic, but the slow f/7.1 aperture is a deal-breaker for anyone who isn't a pro wildlife shooter.
Overview
This lens is a one-trick pony, but it's incredible at that one trick. If you need to shoot distant wildlife or sports, the Canon RF 100-500mm L is basically cheating. Its autofocus is so fast and sticky, it feels like it's reading your mind. But you need to know going in that this is a specialized tool, not a walk-around lens. It's big, heavy, and the aperture is slow, so forget about using it indoors or for portraits.
Performance
The autofocus is the star here, and it's not subtle. It lands in the 99th percentile, which means it's basically the best you can get. It locks onto a bird in flight or a player on a field instantly and doesn't let go. The stabilization is also great, giving you a solid 5 stops of shake correction. What surprised me was how bad it is for anything else. That 1st percentile aperture and bokeh score means your background blur is basically non-existent, and it's useless in low light without a tripod.
Pros & Cons
Pros
- Autofocus is insanely fast and accurate, perfect for fast action. 99th
- Image stabilization is top-tier, letting you shoot handheld at slower shutter speeds. 96th
- Build quality feels solid and professional, typical of Canon's L-series. 95th
- The zoom range from 100mm to 500mm is incredibly useful for its niche. 88th
Cons
- The f/4.5-7.1 aperture is painfully slow. Low-light performance is a struggle. 13th
- Bokeh is basically non-existent. Don't even think about using this for portraits. 20th
- It's heavy at over 2.9 pounds. Your arm will feel it after a long day. 20th
- For $2900, you're paying a huge premium for that red L-ring and Canon's AF system.
Specifications
Full Specifications
Optics
| Type | Telephoto Zoom |
| Focal Length Min | 100 |
| Focal Length Max | 500 |
Aperture
| Max Aperture | f/4.5 |
| Min Aperture | f/54 |
| Constant | Yes |
Build
| Mount | Canon RF |
| Weight | 1.4 kg / 3.0 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | Nano USM |
| Stabilization | Yes |
Focus
| Min Focus Distance | 899 |
Value & Pricing
At $2899, this lens is a tough sell. You're paying for world-class autofocus and a Canon RF mount. If you're a pro wildlife or sports shooter who needs that reliability and speed, it's worth the investment. For everyone else, the price is hard to justify for such a specialized and slow lens.
vs Competition
This isn't really competing with primes like the Nikon Z 35mm f/1.8 S or Viltrox lenses. Those are for different jobs. A more direct competitor would be something like the Sigma 150-600mm Contemporary for DSLRs, which offers more reach for half the price, but you lose the blistering RF autofocus and native mount convenience. For RF shooters, it's basically this or the cheaper RF 100-400mm, which gives up some reach and build quality for a much lower price and lighter weight.
| Spec | Canon Canon L Canon - RF100-500mm F4.5-7.1 L IS USM Telephoto | Meike Meike 55mm F1.4 Standard Aperture APS-C Frame AF | Nikon Nikon S-Line Nikon NIKKOR Z 24-70mm f/2.8 S II Lens (Nikon Z) | Canon Canon RF 24mm f/1.8 Macro IS STM Lens | Tamron Tamron Di III Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for Sony | Sirui Sirui Sniper 56mm f/1.2 Autofocus Lens (Sony E, |
|---|---|---|---|---|---|---|
| Focal Length | 100-500mm | 55mm | 24-70mm | 24mm | 17-70mm | 56mm |
| Max Aperture | f/4.5 | f/1.4 | f/2.8 | f/1.8 | f/2.8 | f/1.2 |
| Mount | Canon RF | Nikon Z | Nikon Z | Canon RF | Sony E Mount | Sony E |
| Stabilization | true | true | true | true | true | true |
| Weather Sealed | false | false | true | false | false | false |
| Weight (g) | 1361 | 281 | 676 | 269 | 544 | 422 |
| AF Type | Nano USM | STM | Autofocus | Autofocus | Autofocus | Autofocus |
| Lens Type | Telephoto Zoom | - | Zoom | Zoom | Zoom | - |
Verdict
Buy this lens if you're a Canon RF shooter who makes money from wildlife or sports photography and need the absolute best autofocus. For everyone else, it's overkill. The slow aperture and high price make it a poor choice as a general telephoto. Rent it for a big trip or event, but think twice before dropping three grand on it.