Canon 70-300mm f/4-5.6 IS II Nano USM Lens for EF-Mount, Black {67}

Canon's 70-300mm travel telephoto with NANO USM autofocus

At 708g and 144.78mm long, this lens punches well above its weight class for a full-frame telephoto zoom. The NANO USM system combines a ring-type ultrasonic motor with a stepping motor, which means fast, decisive autofocus for stills and near-silent focus pulling for video work, all in one lens, with no mode switching. The 17-element, 12-group optical formula includes a single Ultra Low Dispersion element positioned to minimize chromatic aberration across the full 70-300mm range. A 9-blade circular aperture produces smooth background separation at longer focal lengths.

The IS II stabilization system delivers up to 4 stops of shake correction, making handheld shooting at 300mm a realistic proposition than a gamble. The onboard Lens Information Display is a practical touch: glance down and read your focal length, focus distance, or shake estimate without pulling the camera from your eye. A 67mm filter thread keeps the cost of polarizers and ND filters reasonable. Native to Canon EOS Digital and EOS Film bodies, it also adapts to Canon RF, Sony E, Nikon Z, Fuji X, and L-Mount systems. For a telephoto zoom that covers this much ground with this little bulk, the value is straightforward.

Who It's For

Travel photographers working out of a single bag will appreciate the 1.56 lb weight and 5.7" length, this fits where a 100-400mm won't. Wildlife and sports shooters benefit from the NANO USM's quick acquisition for subjects that don't hold still, plus the 4-stop IS when a monopod isn't an option. Video shooters recording wildlife or events get near-silent focus transitions that don't bleed into recorded audio. APS-C shooters gain an effective 112-480mm equivalent reach, making this a long-reach solution on crop bodies without buying into a heavier L-series lens.

Key Features

• 70-300mm full-frame telephoto zoom with f/4-5.6 aperture range
• NANO USM autofocus (ring motor + stepping motor) for fast stills and silent video AF
• IS II optical stabilization delivers up to 4 stops of shake correction
• Single Ultra Low Dispersion element minimizes chromatic aberration throughout zoom range
• Onboard Lens Information Display shows focal length, focus distance, and shake estimate
• 9-blade circular aperture for smooth background separation
• 67mm filter thread for standard accessories
• 708g and 144.78mm length, native EF mount with adapter compatibility

FAQ

How does NANO USM differ from standard Canon USM autofocus?

NANO USM combines a ring-type ultrasonic motor with a stepping motor in one system. This gives you fast AF for stills plus near-silent focus pulling for video without mode switching - standard ring USM can be audible during video recording.

What's the practical difference between 4 stops of IS and no stabilization at 300mm?

Four stops means you can handheld at roughly 1/40th of a second instead of 1/300th - realistic for travel or wildlife work where a tripod isn't practical. At 300mm, that's the difference between getting the shot and leaving the camera home.

How much will chromatic aberration actually be visible in my images?

The single UD element is positioned to control it across the full 70-300mm range, but some color fringing will persist at extreme magnification or high contrast edges. It's controlled, not eliminated - acceptable for most shooting, noticeable only in pixel-level inspection or large prints.

Does the Lens Information Display slow down your shooting workflow?

No. It's a glance-down feature when you need it. You check focal length, focus distance, or shake estimate without removing the camera from your eye - useful for confirming you're actually at 300mm or gauging if you need to brace harder.

Can I use this lens on mirrorless systems?

Yes, with an EF to RF, E, Z, X, or L-Mount adapter. Autofocus works via the adapter on native EOS bodies. On other mounts, AF performance depends on adapter quality and the camera's AF system - faster on newer mirrorless, slower or manual-only on older adapters.

What's the minimum focusing distance, and does it matter?

1.2m (3.9 feet). At 70mm this is tight enough for head-and-shoulders framing; at 300mm you're backing up regardless. Not a limitation for telephoto work - it's typical for this class.

Is a 9-blade aperture better than other counts?

Nine blades produce rounder bokeh than 7 or 8, which means smoother background separation at f/4-5.6. The difference is visible in out-of-focus highlights, especially at 300mm - more naturally circular, fewer distracting polygonal shapes.