Canon EF 300mm f/4L IS USM

Last updated (20 January’12):
- Review by Lenstip

Canon EF 300mm f/4L IS USM is a telephoto lens. The lens features 300mm at focal length with maximum aperture of F/4.0. The lens construction has 15 elements in 11 groups and has diagonal angle of view at 8.3 degrees. Focus adjustment: Rear focusing system with USM, Closest focusing distance at 1.5m / 4.9 ft. and has a filter size of 77mm. The Canon EF 300mm f/4L IS USM lens weighs 2.6 pounds and it measures 3.5 inches in diameter and 9 inches long.

Canon EF 300mm f/4L IS USM
Overall Rating: ★★★★½ | Latest Price Info

Expert Reviews

Canon EF 300mm f/4L IS USM Reviews

Lenstip reviews the Canon EF 300mm f/4L IS USM and writes;
“The build quality feels genuine excellent. We deal here with a solid, sealed barrel, made of magnesium alloys, and a metal mount. A built-in retractable lens hood is an excellent idea. We will never lose it, we don’t have to remember to screw it on; it is simply always there, waiting to be used when we need it.”
rating: N/A

SLRLensreview reviews the Canon EF 300mm f/4L IS USM and writes;
“The lens showed pretty good performance in the field. Images were sharp and contrasty across the tested aperture range (with colors coming up on a slightly warmer side, which is pretty typical for Canon lenses). There was no visual degradation in border quality across the aperture range. “
rating: N/A

Photodo reviews the Canon EF 300mm f/4L IS USM and writes;
“The build quality alone qualifies the price of this lens, which appears as though it will outlast any owner! The built in hood is a neat touch that just about escapes getting in the way of filters.”
rating: N/A

Wlcastleman reviews the Canon EF 300mm f/4L IS USM and writes;
“The EF 300mm f/4 L IS USM lens is a very sharp, light, compact, high-performance telephoto lens. It is a valuable substitute for the EF 300mm f/2.8 L when weight, space (or cost) restrictions do not allow use of the larger and heavier, slightly more capable lens. Light weight and image stabilization make it a superb lens to use when you are traveling without a monopod or tripod.”
rating: N/A reviews the Canon EF 300mm f/4L IS USM and writes;
“The EF 300/4L is a killer lens, espcially when combined with the Canon 1.4x TC. It’s much better than any zoom I’ve ever tested at 300mm, and it’s 1/2 the weight and 1/4 the price of the EF300/2.8L. “
rating: N/A

The-digital-picture reviews the Canon EF 300mm f/4L IS USM and writes;
“Overall, this lens a a very good value. The Canon EF 300mm f/4.0 L IS USM Lens delivers great image quality and physical features for a relatively low price. If you need only 300mm (and 420mm available with the 1.4x) and f/4 is a wide enough aperture for you, look no farther. “
Rating: ★★★★½

User Opinions

Canon EF 300mm f/4L IS USM User Reviews

Insanely sharp 300mm F4 Canon Lens | Rating: ★★★★★
“The focus is quiet and quick, what more could you ask for? It provides crystal clear shots as long as your shutter speed is over 1/30th (hand held with IS on). If you combine a tripod and this lens in “IS” mode, you will lose image quality, so ensure you turn off the “IS” if you are using a tripod. “ – by T. Stack

Handheld telephoto! | Rating: ★★★★★
“Add a 1.4x teleconverter to that and you have well over 600mm – and this lens is of such a good build quality that it easily handles a teleconverter with no noticeable loss of image quality (although I hear that with the 2x teleconverter the loss in quality is noticeable). This is quite simply an excellent lens, good contrast and sharp, sharp, sharp. I’ve been very pleased with this purchase.” – by Comdet

Leave The Monopod Collar Attachment on when hand holding | Rating: ★★★★★
“It is hard to imagine the f2.8 version being superior in most shooting conditions. The fact this lens is so much lighter & portable you open up a whole vista of angles very quickly due to hand holding vs the monopod dependent big brother version. Sharpness & color saturation is excellent.” – by J. Gwinn

my favorite prime lens | Rating: ★★★★★
“The most important argument in favorite of the EF 300 mm f/4L IS USM is its superiour picture quality. In particular I love it’s soft, harmonic bokeh (background blur). The Tamron zoom does not meet this nice bokeh completely though it is not bad and – like many zooms – it can produce some visible chromatic aberration (CA) under bright contrasty conditions.” – by Nachtpfauenauge

Very sharp and IS works | Rating: ★★★★★
“First of all, with telephone, the shutter speed drops a lot. It’s not easy to maintain the minimum shutter speed, even in outdoor. Secondly, the field of view is much narrower, a tripod will not help on following fast moving object. The IS really provides a solution to those problems. With its superb optics, I ever got a clear shot at 1/50(of course, the object was not moving). Its performance is way beyond my expectation. “ – by Ching-Hsiang Lin

Excellent Lens | Rating: ★★★★★
“I bought this because I sometimes need greater reach than provided by my 70-200 f4 L. It’s a very sharp lens, and because of its relatively light weight and IS I’ve been able to get some stunning shots hand-holding it when a tripod is not practical.” – by G. Berger

All around Best Lens For the Bucks! | Rating: ★★★★★
“I got into the 50D+EF 300 4.0L IS setup the more I Liked it well I took the chance and Bought this lens and OMG this combo was made 4 each other this lens is like having a whole new world; sharpness; color; clarity;Bokeh; I mean so easy to use and i’m so happy with the turnaround of images that are great!!” – by Tony

More user opinions | Write your opinion


Canon EF 300mm f/4L IS USM Sample Photos

- Canon EF 300mm f/4L IS USM Sample Photos @
- Canon EF 300mm f/4L IS USM Sample Photos @
- Canon EF 300mm f/4L IS USM Sample Photos @
- Canon EF 300mm f/4L IS USM Sample Photos @
- Canon EF 300mm f/4L IS USM Sample Photos @
- Canon EF 300mm f/4L IS USM Sample Photos @
- Canon EF 300mm f/4L IS USM Sample Photos @

Features & Specifications

Canon EF 300mm f/4L IS USM Specifications

Bring your subjects closer while shooting sports or wildlife with the Canon EF 300mm f/4L telephoto lens. The lens is equipped with Image Stabilizer (IS) technology, which compensates for camera shake by providing the equivalent effect of a shutter speed two stops faster. The camera provides two IS modes: Stabilizer 1, the same mode featured on the EF 75-300mm lens, and Stabilizer 2, which steadies the image during horizontal or vertical panning. The lens is also half the weight of the 300mm f/2.8L IS, with a close focus distance of 4.9 feet. And like all of Canon?s fixed focal length L-series lenses above 135mm, it?s compatible with Canon’s EF 1.4x II and 2x II Extenders.


* Focal length: 300mm
* Maximum aperture: f/4L
* Lens construction: 15 elements in 11 groups
* Angle of view: 8 degrees @ 15 feet
* Focus adjustment: Rear focusing system with USM
* Closest focusing distance: 4.9 feet
* Filter size: 77mm
* Dimensions: 3.7 inches in diameter and 8.7 inches long
* Weight: 2.6 pounds
* Warranty: 1 year

See also: Canon Lenses | Lens Reviews

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