Canon EF-S 17-85mm f/4-5.6 IS USM Autofocus APS-C Lens, Black {67}

Canon's 17-85mm EF-S walkaround lens with built-in IS

The EF-S 17-85mm f/4-5.6 IS USM covers a practical 27-136mm equivalent range on APS-C bodies, making it the kind of lens you mount in the morning and don't swap out all day. The USM autofocus is quiet and responsive, which matters when you're shooting in situations where noise draws attention or you need to track a moving subject without lag. Image Stabilization gives you a meaningful buffer for handheld shooting in lower light, particularly at the longer end where camera shake compounds fast.

The 67mm filter thread is a common size, so filters you already own likely fit. At f/4 on the wide end, you're working with a moderate aperture that keeps the design manageable in size. This is a time-tested lens on a mount with a long history in Canon's APS-C lineup, and it remains a practical choice for shooters who want a single optic to handle a wide range of focal lengths without constantly digging into their bag.

Who It's For

Travel and documentary photographers get a 17-85mm range that covers wide environmental shots and tighter subject framing without a lens change. Event photographers benefit from the IS when working in dim reception halls or auditoriums at the 85mm end. Street shooters who want to move quietly will appreciate the near-silent USM autofocus. Canon APS-C users building a minimal kit around a single walk-everywhere lens get a focal range that handles group shots at 17mm and reasonable subject isolation at 85mm.

Key Features

• 17-85mm focal range covers 27-136mm equivalent on APS-C
• USM autofocus motor runs quiet and responsive
• Image Stabilization compensates for handheld shake
• f/4 maximum aperture at 17mm keeps design compact
• 67mm filter thread matches common filter sizes
• EF-S mount for Canon APS-C camera bodies

FAQ

What's the equivalent focal length on my Canon APS-C body?

27-136mm equivalent. The 17mm wide end gives you solid environmental coverage, and 85mm is tight enough for portraiture without hunting for space.

How does the autofocus perform?

USM is fast and quiet-noticeably quieter than older AF motors, which matters if you're recording sound or need to focus without drawing attention. Tracking is responsive for moving subjects.

Will my existing filters work?

Yes, if they're 67mm. That's a common thread size, so you likely have filters that mount directly.

How much does IS actually help?

Around 3-4 stops of stability. At 85mm, that buffer is noticeable in available light, especially during video or low-shutter-speed handheld work.

Is this lens weather-sealed?

No. It's not a pro-grade lens-no internal gaskets or protective coatings. Treat it as standard EF-S glass.

What's the closest focusing distance?

0.25m (9.8 inches) across the zoom range. Macro work isn't the goal here, but you can get closer than you'd expect.

What size filter thread does this use?

67mm. Common size, so you're not locked into buying new filters if you already stock them.