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Canon EF 300mm f/4L IS USM Lens

BH #CA3004LISEF • MFR #2530A004
Canon EF 300mm f/4L IS USM Lens
Key Features
  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/32
  • Two Ultra-Low Dispersion Elements
  • Super Spectra Coating
Blending a versatile telephoto focal length with a modest form factor, the EF 300mm f/4L IS USM is a long-reaching prime and member of Canon's elite L-series of optics. Two ultra-low dispersion elements are used to significantly reduce color fringing and chromatic aberrations in order to achieve a high degree of clarity, and a Super Spectra coating has also been applied to maintain contrast and color fidelity when working in difficult lighting conditions. Complementing the imaging attributes, this 300mm f/4 also features an Image Stabilizer to minimize the appearance of camera shake by two stops for sharper handheld shooting. The ring-type USM is employed, too, to deliver quick and quiet autofocus performance along with full-time manual focus control. Additionally, a removable rotating tripod collar is included for stable use of the lens atop a tripod or monopod.
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Canon EF 300mm f/4L IS USM Overview

Blending a versatile telephoto focal length with a modest form factor, the EF 300mm f/4L IS USM is a long-reaching prime and member of Canon's elite L-series of optics. Two ultra-low dispersion elements are used to significantly reduce color fringing and chromatic aberrations in order to achieve a high degree of clarity, and a Super Spectra coating has also been applied to maintain contrast and color fidelity when working in difficult lighting conditions. Complementing the imaging attributes, this 300mm f/4 also features an Image Stabilizer to minimize the appearance of camera shake by two stops for sharper handheld shooting. The ring-type USM is employed, too, to deliver quick and quiet autofocus performance along with full-time manual focus control. Additionally, a removable rotating tripod collar is included for stable use of the lens atop a tripod or monopod.

Telephoto prime 300mm f/4 lens is compatible with full-frame Canon EF-mount DSLRs as well as APS-C models where it will provide a 480mm equivalent focal length.
Two ultra-low dispersion (UD) elements greatly reduce chromatic aberrations and color fringing for improved clarity and color accuracy.
Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions.
An Optical Image Stabilizer helps to minimize the appearance of camera shake by up to two shutter speed stops to better enable working in low-light conditions and with slower shutter speeds. In addition to the single-shot standard IS mode, a second mode is also available that it optimized for panning.
A ring-type Ultrasonic Motor (USM), along with a rear focusing system, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.
Rounded eight-blade diaphragm contribute to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.
Built-in lens hood prevents stray light from causing ghosting or flare and also protects the front element from accidental impacts or scratching.
As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions.
Removable rotating tripod collar is included and benefits working with the lens atop a tripod or monopod.
Compatible with optional EF 1.4X and EF 2X teleconverters.

Canon EF 300mm f/4L IS USM Specs

Focal Length300mm
Maximum Aperturef/4
Minimum Aperturef/32
Lens MountCanon EF
Lens Format CoverageFull-Frame
Angle of View8° 15'
Minimum Focus Distance4.92' / 1.5 m
Maximum Magnification0.24x
Optical Design15 Elements in 11 Groups
Diaphragm Blades8, Rounded
Focus TypeAutofocus
Image StabilizationYes
Tripod CollarRemovable and Rotating
Filter Size77 mm (Front)
Dimensions (ø x L)3.54 x 8.7" / 90 x 221 mm
Weight2.62 lb / 1190 g
Packaging Info
Package Weight3.8 lb
Box Dimensions (LxWxH)12.45 x 6 x 6"

Canon EF 300mm f/4L IS USM Reviews

A lens you can love.

By Dennis
Rated 5 out of 5
Date: 2020-08-31

In as much as I'm not a pro I won't bore you with the technical stuff. I'm a pitcher taker and that's all I want to be, and to that end this lens is superb. I don't find value in extreme ISO capability or the amount of bokeh a lens gives or don't give. I just want a nice focused clean image without having to overthink it and this lens works for me. It may not be as versatile as my 70-300 zoom, but nonetheless it has its' place. The only drawback is finding the sweet spot 'tween you and your subject, but the reward is a clean clear crisp image. I also won't bore you with the details of buying it thru B&H since we all know they're the best. I'd highly recommend both the lens and B&H.

Quite a lens!

By D R Balfanz
Rated 5 out of 5
Date: 2018-04-24

I typically use a 70-200 2.8 for sports, but always wished I had a bit more reach... this lens does the trick! It's sharp from 4.0 all the way through, and shooting macro is a pleasant bonus.� Lastly, the background blur is fantastic!. Head and shoulder portraits done outdoors have all come out nothing short of gorgeous! I'm glad I saved up to purchase this lens. It's worth every penny!

An older lens but still a powerhouse

By Cytography
Rated 5 out of 5
Date: 2017-10-14

Bought this a couple years ago as a lens with decent reach and with f4 it is a great value. I love the bokeh I get at f4! It has IS but it is older generation so, while it’s better than no IS, it’s not the best. Also the AF is ok but not great and at least my copy is a bit noisy with IS on and when AF engaged. Nevertheless it does produce very good images.

My Big Gun.......

By ARIEL
Rated 5 out of 5
Date: 2017-08-10

I bought it used and found it to be an incredibly sharp and fast lens, despite it's an F4. I first used it in a Kids Football Practice and the images were amazing. FAR FAR better than I ever thought. The kids look like pros. It is a please to hold without a monopod. I bought a Camera hand grip and placed it were the Monopod screws in and I rarely get tired of holding it even though, it gets heavy after a while. I have so much fun using it with my Canon 7D Mark 2 that I can care less for the monopod. I hope anyone who reads this and is debating on whether or not they should buy this lens, gives this lens a chance. I did, because I am a very picky person on images. But this lens is outstanding. After doing weddings for a while using a Canon 6D full frame, it's nice to take a break every now and then; go out to the field and just fire away with my 7D mark 2 with a huge lens at 10 Frames a second. It's so much fun. I included a shot of our quarterback and I love how awesome it looks. Like I said before, fast and sharp. Good Luck !!!!

Great for astrophotography

By Gregory
Rated 5 out of 5
Date: 2019-04-01

Overall, this is a very nice lens.  I use it mainly for astrophotography and, like most camera lenses, it suffers from significant field curvature at its native focal ratio.  But definitely not as bad as my Canon 24-105mm zoom lens.  However, stopping down one or two stops reduces field curvature to a tolerable level and has the added advantage of increasing contrast and minimizing diffraction spikes around bright stars.  300mm is a very nice focal length for photographing large deep space objects.  The built-in lens hood is a nice touch and helps prevent dew on the lens.  Also, the ability to rotate the camera is very handy for image framing and composition.

Image Stabilization makes a clunking sound

By Swish
Rated 3 out of 5
Date: 2019-01-02

Got this for Christmas and haven't had a chance to really use it except just playing with it around the house. The Image Stabilization makes a small clunking sound whenever it goes into action. Is that normal?

GREAT LENS FOR THE MONEY

By Pascal
Rated 5 out of 5
Date: 2018-11-14

I am a professional photographer and I absolutely love the versatility of this lens.  I use it for portraiture ( I love the Compression for Portraits ) and occasionally for Travel and Nature. Its relatively light and the IS is more than adequate. A great buy.

Excellent lens

By Kerry
Rated 5 out of 5
Date: 2018-05-26

Wanted a lens with a bit more reach than my 70-200 and with IS so that would be better for handholding. After owning my first lens with IS (the 100 macro) I would not want a lens without it, except perhaps an ultra-wide that I would use for low light. Results have been excellent so far. It is only a little longer than the 70-200 but lighter and more useable without having to use a tripod. I do use a tripod frequently when not walking far a field. My only wish is that the image stabilization had been updated to provide 4 stops instead of what I think is currently two. However if it were updated, the cost would likely equal that of the Canon 100-400.� Like all lenses, there are compromises. Wildlife/bird photographers will likely go for a longer lens. But I do not adhere to the idea that longer is always better. Technique and knowing you subject is more important. Even the f4 aperture is a compromise...the Canon 2.8 is faster, sharper, but well out of my price range. I do not want a lens whose maximum aperture is 5.6 even if you can boost the ISO of the camera. A nice feature of the lens is the build-in lens hood. Not a make-or-break feature, but a nice convenience. I would highly recommend this lens for any nature photographer that understands their subject enough to effectively use a slightly lighter and more portable lens, providing they do not have the attitude...the longer the better.

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question

Is the tripod mount supplied with the lens
Asked by: Anonymous
Yes, the tripod mount ring is included with the Canon EF 300mm f/4L lens.
Answered by: Heather S.
Date published: 2018-08-27

question

I am interested in getting this lens for use on a Sony A7-II, as there is no E-mount equivalent. Does anyone have experience using this with a Metabones or Sigma MC-11 adapter? Does autofocus work with either of those on a Sony?
Asked by: Steven
With regards to the MC-11, I can confirm that it will work with my copy paired with both an a6000 and an a6500. AF acquisition is faster with more light but not so bad even indoors with home lighting. AF accuracy is very good when using single AF. I don't normally shoot in continuous AF.
Answered by: Philip Evgeny
Date published: 2020-05-25

question

Do you find you are able to shoot out in the field without a tripod? (300mm f/4.0 IS USM lens) on a 60D (sometimes with extender 1.4x II or III) This is my wildlife/birding setup.
Asked by: Sandra F.
Yes if the light is right.. Gotta keep the shutter speed up to get the most keepers. I just got back from a backpacking trip in Glacier NP Montana. I got some real good shots of Big Horn Sheep and Mountain Goats with it. I do like this lens.
Answered by: JOHN J.
Date published: 2018-08-27

question

Will this lens fit a Canon EOS Rebel T5i? Thanks
Asked by: Anonymous
The Canon EF 300mm f/4 is fully compatible with the T5i, yes.
Answered by: Christina S.
Date published: 2018-08-27

question

...and while displaying my novice; can I inquire if this specific lens is compatible with the t4i?
Asked by: Anonymous
Yes. This lens will work on the T4i. It will look like the equivalent of 450mm, due to the APS-C crop sensor, which carries a 1.5x conversion factor. All EF and EF-S lenses will work on this type of sensor.
Answered by: Chris L.
Date published: 2018-08-27

Has anyone tried this lens paired with the Canon ...

Has anyone tried this lens paired with the Canon 5DS?
Asked by: Matthew
It works very well on the 5DS.
Answered by: Rob
Date published: 2020-08-17

What is the size of the lens hood of the 300 mm ...

What is the size of the lens hood of the 300 mm f/4L IS USM? Getting a Bahtinov mask for this lens but not sure how big I need.
Asked by: Philip Evgeny
It is approximately 3.50".
Answered by: Rob
Date published: 2020-05-28

question

What is the difference in image quality and functional automatic focus between the Extender 1.4x II and 1.4x III?(This is with a 300 mm f/4 IS L series lens on a 60D body.)
Asked by: Sandra F.
I have a 50D Canon Camera and the 1.4 III Extender. When used with the 300 mm lens I have no problem with the auto focus and there is minor image quality deterioration. You lose one stop on your aperture. It really is a great combination.
Answered by: JERRY C.
Date published: 2018-08-27
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