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Web Code: 010CAN072  •  Mfr Code: 2530A004
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CANON EF 300MM F4.0 L IS USM is rated 4.5 out of 5 by 22.
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Product Highlights
  • Compact L-series Telephoto Lens
  • Closest Focusing Distance - 1.5 m
  • Two Image Stabilizer Modes
Read More
  • Compact L-series Telephoto Lens
  • Closest Focusing Distance - 1.5 m
  • Two Image Stabilizer Modes
  • Filter Diameter - 77mm
  • Rear focusing system with USM
  • Image Stabilizer that compensates for camera shake with the equivalent effect of a shutter speed two stops faster
  • Stabilizer Mode 1 (the same mode featured on the EF 75-300mm f/4-5.6 IS USM)
  • Stabilizer Mode 2 - steadies the image during horizontal or vertical panning
  • Mode 2 detects the panning direction automatically
  • Lens Construction - 15 elements in 11 groups
  • Max. Diameter x Length, 3.5" x 8.7" / 90.0 x 221.0mm
  • Weight - 2.6 lbs. / 1.190g

Lens Performance

Lens Type: Digital SLR Lenses
Focal Length: 300mm
Maximum Aperture: f/4.0
Aperture (Max. & Min.): Max: f/4.0, Min: f/32
Camera Mount Type: Canon EF
Camera Format: Full-Frame
Angle of View: 8 degrees
Minimum Focus Distance: 1.50m
Maximum Close-Up Magnification: 0.24x
Groups/Elements: 11 Groups/15 Elements
Diaphragm Blades: 8

Lens Features

Image Stabilization: Yes
Autofocus: Yes
Tripod Collar: Yes


Filter Thread: 77mm
Dimensions (DxL): 3.5x8.7"
Weight: 1.19kg

Additional Information

Warranty: 1 year manufacturer warranty
Rated 5 out of 5 by from Great Telephoto Macro Lens I bought this lens because of its close focusing cabability compared to the other 300's available. I have not been disappointed. It has replaced the 180 L Macro for hand holding situations because of its light weight, IS capability, and greater working distance to subjects. Don't get me wrong, my 180 L Macro is still my go to lens for really close up work, but for general field use, this lens is super. And it is a 300 telephoto too. Wish they made a 400 or 500 with the close focusing capability this lens has. Added bonus - MSRP. A real sweet lens, with L quality, at a real sweet price.
Date published: 2009-05-19
Rated 5 out of 5 by from I may as well weld this to my 5D3 I have owned this lens for eight months and it, together with an EF 1.4x III, stay on my 5D Mark III more than 90% of the time. I absolutely love this lens, and picked it out to get a bit more reach over my EF 200 f/2.8L II (also a superb lens). The autofocus is fast, dead accurate, and the color and contrast are outstanding. With the teleconverter image quality is still excellent. I shoot wildlife, birds large and small, flying and still, turtles, dragonflies, and it handles them all superbly. The detail rendered by this lens is astonishing, and the bokeh is beautifully creamy as you would expect from a lens of this length. The image stabilization works also very well. For the price you can't beat this lens if you want fantastic quality in the 300-400mm range.
Date published: 2014-07-13
Rated 4 out of 5 by from Pretty nice lens. I have used this lens for a year now and am generally happy with its performance. I moved to this lens from a EF 100 - 400mm IS because I had heard that prime lenses give better image quality. I think the autofocus is a bit slower and there is a very annoying "clunk" that is well documented with the IS of this lens. I shoot whitetailed deer and usually can get a couple of frames shot before they hear the lens and dart off. The image quality is very good and image stabilization really helps shoot while on foot. Overall I think this is a great lens if your subjects aren't too spooked by noise.
Date published: 2011-06-01
Rated 5 out of 5 by from EOS EF 300mm f/4 IS This lens is a delight to use. It's wide enough to get a good grip on the barrel but not too wide. The hood recesses into the body so there is no messing about with putting on and taking off plastic hoods, it's light weight and very well balanced. f/4 is really useful and the lens is good wide open. What I like this lens for is candid portraits, but it will also serve for sports, airshows, landscapes and as a zoo lens. Oh, I nearly forgot - this is a great macro lens for larger objects like dragonflies, so you are really getting two lenses in one. Pictures are sharp and the colors and contrast is right on the button. Recommended. Some people compare this lens with the 100-400L. Stopped down the quality/sharpness is the same. One gives you 400mm, one gives you f/4, so is better in less than ideal light.
Date published: 2010-11-29
Rated 5 out of 5 by from a lot of bang for the buck One of the best values for a telephoto. Easy to hand hold. If you can't afford to buy the big glass @ f-2.8 ; go for this. The glass is sharp,focus is fast. A friend who is an NFL photographer referred this lens to me. Good advise!
Date published: 2008-12-03
Rated 5 out of 5 by from Super L quality This is the second L lens I own, the first is the 70-200mm f4 L IS. After the first L, I just had to get another. The amazing quality that I've never had in any other lens, sets the L lens apart from all others. Smooth mechanism, great build and unbelievable sharpness! This lens is worth every penny I paid. The first time I saw an image at 100% on my monitor, I knew i had something special. Spot on auto focus, edge to edge sharpness...wide open. You can't go wrong with one if you need a long lens in this range! This prime won't disappoint!
Date published: 2013-07-31
Rated 5 out of 5 by from An Awesome Lens I've been using this lens for 4 years now to photograph surfing, air shows, wildlife, etc. It is tack sharp and contrasty wide open at f/4. I can and often do crop the center half out of images shot with this lens and the resulting prints are still sharp. I've gone so far as to crop the center 1/4th out of some air show shots and, as best as I can tell, the limitation is not the lens sharpness, but the sensor resolution in my DSLR. IS works amazingly well, in my experience better than the 2 stops Canon claims. Trust me when I say that IS helps after a long day of shooting when tired arms would otherwise compromise even normally safe shutter speeds. Bokeh and color are excellent, as is the build quality. My only complaint is that Canon did not weather seal this model, though it's certainly more resistant to weather than the typical 'telescoping' consumer zoom. AF is not quite as fast as my 70-200, but fast enough for every subject I've put it against. I can't say enough good things about this lens. It is one of my most productive lenses.
Date published: 2009-10-06
Rated 5 out of 5 by from WOW LENS This is my first L LENS and it is amazing the bulid quality is amazing just like my camera! The picture quality is also amazing, this is my new favorite lens i love how it is a prime lens and has a built in lens hood, Overall -- Best lens for the money and i have no regrets, the IS is amazing and a great lens for Nature and wildlife photographers!!
Date published: 2009-10-19
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