Canon RF 600mm f/4 L IS USM : Specifications and Opinions

The Canon RF 600mm f/4 L IS USM is a supertele lens for FF and APS-C, manufactured from 2021. The focus is done by Ultrasonic AF Motor (Ring-USM), it has image stabilization. The average price, when it has been added to the JuzaPhoto database, is 14000 €;

13 users have given it an average vote of 9.5 out of 10.

MOUNT

This lens is available with the following mounts:

Canon RF: this lens is compatible with mirrorless fullframe and APS-C Canon RF.

Specifications
Focal lenght	600 mm
Angle of view	4.1°
Format	FF, APS-C
Max. aperture	f/4
Aperture blades	9
Lenses/Groups	17 elements in 13 groups
Min. focus distance	4.20 meters
Reproduction ratio	0.15x
Features
Stabilization	Yes (built in lens)
Focus	Ultrasonic AF Motor (Ring-USM)
Internal Focus	Yes
Built and notes
Tripod ring	Yes
Extenders	Yes
Filters	52 mm
Lens hood	Yes, supplied
Weather sealing	Yes
Weight	3090 g
Dimensions	168 x 472 mm
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Reviews

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Nejadi

sent on 12 Novembre 2021

Pros: very sharp , Very fast , Very light and......

Cons: Expensive

Opinion: This lens is a masterpiece from Canon. with Using two new motors focus and new proccessor , speed and accuracy Focusing is unparalleled ,The lens output is very sharp and high quality, and the colors are warm and beautiful ,This lens can be a good replacement for previous versions and will be very efficient and useful for wildlife photography lovers.The weight of this lens has been significantly reduced and this is very important for photographers

The following opinions have been automatically translated with Google Translate.

Cirillo Giovanni

sent on 26 Luglio 2025

Pros: AF speed, stabilization, weight, sharpness, three-dimensionality, use with multipliers, minimum maf at 4.20 a lot of stuff for a 600, the other brands start from 4.50.

Cons: Cluttered

Opinion: This lens is really super in all speed AF stabilization, sharpness but above all detachment of planes at f4 is magic. I would like to highlight an important thing, that is the performance with the 2x is fantastic both from the point of view AF speed and image quality, a rendering never seen before, taking into account that I had both the 600 is2, which was very slow, and the 600 is3 which was fast but not of great quality in terms of final performance. With the tc 1.4 instead it loses a little too much I expected better, this 600 used with r52 and r1 reaches really super performance in terms of AF is especially in the locking of subjects both on the fly and from a standstill in the search for the eye, the only thing that bothers me a hair is its length .. I conclude by saying that Canon with this lens has enclosed the best of years of experience with 600 is2 and is3 and has made it the perfect lens by filling all those defects found in previous models.

Nicoli Giuliano

sent on 11 Maggio 2023

Pros: Light, Sharp, Fast, excellent colors, double motor for AF, top stabilizer.

Cons: At the beginning you immediately say that it is expensive, then you use it, uses of its peers that cost a tenth and you understand that it is worth what you pay it, I state that from the list you go down a lot if you buy it in the store (15/18%), then it is clear it is not a lens that you buy at unieuro ........ but it's worth them all.

Opinion: After abandoning the Canon Reflex system, I throw myself headlong into the new technology. The choice, despite the skepticism, is rewarded and right. I go crazy and buy this lens, beautiful from the packaging when you unboxing to when you use it in the field. What can I say, smooth is a very fast AF blade with double focusing motor, sharpness really at the top, if you learn to use it becomes impressive in armoring a subject and follow it without missing a shot. The focus preset once set adjusts the focusing distance and stores it so when you return to that point just move the appropriate ring to have everything in focus in a nanosecond, good and perhaps a little far from the AE lock button to keep the focus steady when you are in AI SERVO, the manual focus used together with the AF adjusts the focus on the subject to the thousandth. Mounted on the R3 is a real bomb, I tried to print in 55x70 format a photo of a woodpecker made in the rain and under the plants, without using noise reduction or image alteration programs, I got an excellent image above my expectations. Conclusion....... just beautiful!!!!

Danilo180

sent on 27 Febbraio 2023

Pros: Lightness, sharpness, excellent blur

Cons: Definitely the cost, but 'I was lucky because I managed to snatch a great discount

Opinion: I have the lens for a few months, excellent of course, beautiful colors gives very sharp images, excellent blurred, very "battered" as I like. To give you an example I showed my photos to a person passionate about bird photography but not very experienced, I had not told him that I had changed lenses, and he the first thing he asked me is if I had changed camera or lens because he noticed the photos "different" from those I took with the 500 F4 II. I must say that it is very light, with the R3 I can do even 2/3 hours without using the monopoiede. I noticed that the weight is felt by adding the tlc especially the 2x. I come from the 500 F4 II, very sharp but here we are talking about 100mm "extra reach" that are fundamental for those like me who do birdlife. As for the AF speed thanks to the 2 engines, I would not be able to evaluate it because I honestly did not perceive differences with the 500 F4 II.

PannaeFragola

sent on 09 Ottobre 2022

Pros: Weight, stabilization, sharpness, minimum focusing distance and dual motor are the strengths

Cons: Apart from the price, the only drawback I can find is the increased battery consumption due to the double motor.

Opinion: At this point everyone can draw their own conclusions. In my opinion, as more than one has asked, the purchase of the RF 600 deserves to be considered if you want to have the top of the current mirrorless system at Canon. The lens works excellently and produces excellent images, especially smooth and with the 1.4X. The photos with 2X, as always using this type of extender, lose something in terms of sharpness but the results that can be obtained are still excellent as long as you use it when experience tells you that it is the case to do it .. Daniele Occhiato

Photos taken with Canon RF 600mm f/4 L IS USM

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51 comments, 1205 views

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44 comments, 2623 views

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With a trickle of light...

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29 comments, 1954 views

Steppe eagle Bird

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28 comments, 2325 views

Simply cougar

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28 comments, 2401 views

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A moment before

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29 comments, 1578 views

Sudden turn (swamp owl)

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20 comments, 1596 views

TransparenciesT 2

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25 comments, 1609 views

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Canon RF 600mm f/4 L IS USM : Specifications and Opinions

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Photos taken with Canon RF 600mm f/4 L IS USM