* Item pictured for illustrative purposes only, actual item not pictured. See ‘Notes’ next to grade for included items.
Canon 300mm f/4 L IS USM EF-Mount Lens {77}
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$664.00
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KEH Certified™ pre-owned gear, expertly inspected†
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All rental gear is between Excellent and Like New Minus condition
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Standard accessories included
Canon's compact 300mm f/4L: the telephoto workhorse that travels light.
The EF 300mm f/4L IS USM sits in a sweet spot that few lenses occupy: true L-series optical quality in a package that doesn't demand a sherpa. The 17-element, 13-group construction delivers the contrast and resolution Canon's professional glass is known for, and the f/4 maximum aperture gives you usable shutter speeds in field conditions where longer, heavier glass would demand a monopod just to stay steady. Built-in Image Stabilization takes over when you're shooting handheld in fading light or from a moving vehicle.
The ring-type USM autofocus is fast and near-silent, which matters when your subject is a bird on a branch or an athlete mid-stride. A 77mm front filter thread keeps you compatible with standard polarizers and ND filters, and the 52mm drop-in filter slot behind the rear element works cleanly with the EF 1.4x Extender, pushing you to 420mm f/5.6 without sacrificing AF. Weather-resistant construction and a built-in tripod collar round out the spec sheet for serious field work.
On Canon EOS bodies this lens is native. Adapted to Canon RF, Sony E, Nikon Z, Fuji X, or L-Mount systems, it remains a legitimate option for shooters who already own the glass and want to carry it into a new system.
Who It's For
Wildlife photographers get a tripod-collar-equipped, weather-resistant 300mm that pairs with the 1.4x Extender for 420mm reach when subjects won't cooperate. Travel photographers value the relatively compact footprint at a focal length that works for compressed cityscapes and candid portraits from a distance. Sports shooters on the sidelines benefit from silent USM AF tracking fast-moving subjects without drawing attention. Nature and documentary photographers working in variable light conditions lean on the Image Stabilization for handheld frames when tripods aren't practical.
Key Features
- 17-element, 13-group optical construction for L-series contrast and resolution
- f/4 maximum aperture enables usable shutter speeds in field conditions
- Ring-type USM autofocus delivers fast, near-silent focusing for moving subjects
- Built-in Image Stabilization for handheld shooting in fading light and from moving platforms
- 77mm front filter thread with 52mm drop-in rear slot for EF 1.4x Extender compatibility
- Weather-resistant construction with integrated tripod collar for professional field work
FAQ
- Does this lens work with Canon's 1.4x extender?
- Yes. The 52mm drop-in filter slot behind the rear element accommodates the EF 1.4x Extender cleanly, extending reach to 420mm f/5.6 while retaining autofocus.
- How fast is the autofocus?
- Ring-type USM is fast and near-silent, designed for moving subjects like birds and athletes where speed matters and silence keeps you from spooking the shot.
- What's the filter setup on this lens?
- 77mm front thread for standard polarizers and ND filters. Behind the rear element sits a 52mm drop-in filter slot for specialized glass or the 1.4x extender.
- Is Image Stabilization strong enough for handheld shooting?
- IS compensates for camera shake in fading light and from moving platforms like vehicles, extending your handheld window below what f/4 native shutter speeds would allow on a tripod-less setup.
- Can I use this lens on mirrorless systems?
- Yes, via EF adapter. It remains a legitimate option on Canon RF, Sony E, Nikon Z, Fuji X, and L-Mount bodies for shooters migrating systems while keeping their existing glass.
- What does the weather-resistant construction actually mean?
- Canon rates this as weather-sealed for professional field use, though not waterproof. A built-in tripod collar supports the lens weight on longer exposures.
- How much does this lens weigh and how compact is it really?
- At 17 elements in 13 groups, it's significantly lighter and more compact than comparable 300mm telephotos, making it genuinely portable for travel and handheld work.
| Specification | Value |
|---|---|
| Focal Length | 300mm |
| Max Aperture | f/4 |
| Mount | Canon EF |
| Stabilization | Yes |
| AF System | USM (Ultrasonic Motor) |
| Filter Thread | 77 mm |
This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.
| Brand Name | Canon |
|---|---|
| Filter Size | 77mm |
| Focus Type | Autofocus (lens motor) |
| Lens Mount | Canon EF |
| Lens Type | Telephoto / Long |
| Max Focal Length | 300mm |
| Min Focal Length | 300mm |
Learn what to expect from each condition, cosmetically. Images are representative of each grade and may not show the exact item you receive. All equipment is guaranteed to work as intended, unless otherwise noted. We also occasionally offer items that fall .
Exceptions
- New
- New in box complete with manufacturer's USA warranty. Not previously owned or used.
- Like New
- Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
- As Is
- Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
Like New Minus
Like New Minus
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Excellent Plus
Excellent Plus
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Excellent
Excellent
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Bargain
Bargain
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Ugly
Ugly
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
