Canon 3560B002

This lens hits the 95th percentile for versatility, making it one of the most useful zooms we've ever tested for Canon APS-C DSLRs. The USM autofocus is blazing fast and silent, ranking in the 94th percentile, and the 4-stop stabilizer is a top-tier 92nd percentile performer. The main trade-offs are a plasticky, unsealed build and a slow variable aperture that struggles in low light.

Sharpness is well above average, putting this lens in the 82nd percentile for optical quality. The 17-element design with one UD and three aspherical elements does the heavy lifting here. You'll see some softness in the corners wide open at 15mm, but stop down to f/5.6 or f/8 and things clean up nicely across the frame. The Super Spectra coating does its job keeping flare and ghosting under control, even shooting into the sun. The f/3.5-5.6 aperture range is the main compromise. It's ranked in the 79th percentile, which is decent but not going to blow anyone away. You won't get that shallow depth of field look easily, and low-light shooting will push your ISO up faster than a constant f/2.8 zoom would. Bokeh quality is a middle-of-the-pack 77th percentile, so don't expect creamy backgrounds, but it's not harsh or distracting either.

Stacked against the Sigma 16-300mm f/3.5-6.7, the Canon gives up a massive amount of telephoto reach but wins on autofocus speed and stabilization. The Sigma is a superzoom monster, but our data shows the Canon's USM motor is in a different league for responsiveness. The Tamron 18-300mm f/3.5-6.3 for mirrorless systems offers even more range and better close-focusing, but you'd need an adapter for EF-S bodies, and you lose that native Canon AF reliability. The Nikon Z 28-400mm is a full-frame beast with an insane zoom range, but it's in a completely different price bracket and mount system. For a Canon APS-C shooter who wants one lens that does almost everything well, the 15-85mm carves out a unique niche none of these competitors quite match.

At $799, the value proposition is a mixed bag. You're paying for that top-tier versatility and autofocus performance, which is hard to find in a single package. But the build quality is a real letdown for the price, ranked in the 48th percentile. The plastic construction and lack of weather sealing make it feel more like a $400 kit lens than something nearing a grand. If you can find it on sale or used in good condition, the price-to-performance ratio improves dramatically. As it stands new, you're paying a premium for the convenience of the range and the speed of the USM motor.

The Canon EF-S 15-85mm f/3.5-5.6 IS USM is a bit of a sleeper hit in our database, landing in the 95th percentile for versatility. That's a fancy way of saying it handles a huge range of shooting situations better than almost any other zoom we've tested. The 24-136mm equivalent range on APS-C bodies covers wide landscapes to short telephoto portraits without ever needing to swap glass. It's the lens you leave on your camera 90% of the time. Autofocus is another standout, sitting in the 94th percentile thanks to Canon's ring-type USM motor. It's fast, quiet, and accurate, making it a solid pick for both stills and video work where you don't want focus noise ruining your audio. The 4-stop image stabilizer is also a top performer, ranked in the 92nd percentile, which helps offset the slower variable aperture when the light drops.

Skip this lens if you shoot in dusty or wet conditions. The 48th percentile build quality and lack of weather sealing are a real liability for outdoor adventure or travel photography, which is ironic given its versatile range. Macro shooters should also look elsewhere, the 62nd percentile close-focus performance and 350mm minimum focus distance won't get you near enough for detailed close-ups. If you need a lens that feels premium in hand, the all-plastic construction will disappoint you every time you pick it up.

The Canon EF-S 15-85mm is the best general-purpose zoom for APS-C Canon DSLRs if you value autofocus speed and a useful focal range above all else. The 95th percentile versatility score isn't just a number, it translates to real-world convenience that will keep this lens glued to your camera. Just know that you're trading build quality and low-light chops for that flexibility. If you shoot in rough weather or crave subject isolation, look elsewhere. For everyone else, this is the smart upgrade from a kit lens.