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Canon RF 100-400mm f/5.6-8 IS USM : Specifications and Opinions

The Canon RF 100-400mm f/5.6-8 IS USM is a tele lens for FF and APS-C, manufactured from 2021. The focus is done by Ultrasonic AF Motor (Nano-USM), it has image stabilization. The average price, when it has been added to the JuzaPhoto database, is 712 €;

41 users have given it an average vote of 9.2 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	100-400 mm
Angle of view	24.4 - 6.2°
Format	FF, APS-C
Max. aperture	f/5.6-8
Aperture blades	9
Lenses/Groups	12 elements in 9 groups
Min. focus distance	0.88 meters
Reproduction ratio	0.41x
Features
Zoom type	Ring, external
Stabilization	Yes (built in lens)
Focus	Ultrasonic AF Motor (Nano-USM)
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	Yes
Filters	67 mm
Lens hood	Yes (not supplied)
Weather sealing	No
Weight	635 g
Dimensions	79 x 164 mm
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Reviews

What do you think about this lens?

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Vegmik

sent on February 26, 2022

Pros: Small, light as a feather, surprisingly sharp, a perfect lens (not only) for hiking

Cons: Reduced brightness, lack of hood and weather sealing

Opinion: Among ef lenses I have always looked for the alternative that is light with a relatively large zoom range, and of course able to capture sharp, clear pictures. For me this solution was the Canon EF 70-300mm f/4-5.6L IS USM (I also had 100-400 L and Tam 150-600, but this was my ideal partner for hiking). I bought rf 100-400 as soon as arrived to the market and I have to say that I didn't regret it. Nowadays this is my nr1 lens on short trips and it does the job perfectly. Of course its a bit darker than expected, but even with my EOS R it is not a problem even in low light conditions. Images are sharp, colours are beautiful "Canon-icals" :) before and after sunset, in cloudy weather as well. And it is works perfect in daylight. Yep, lack of tropicalization, so you wont use it in heavy rain or snowstorm, but some raindrops are absolutely ok. It is a perfect exchange of cheaper Canon EF 70-300mm f/4-5.6 IS II nano USM but in quality its step by step with the 70-300mm f/4-5.6L big brother. EF 100-400 and RF 100-500 are playing in az upper league, but you should decide if the plusplusplus amount of money worth it for you or not. For a normal everyday usage for a non-millionaire Ill definitely stick wit this clever, tiny friend :)

The following opinions have been automatically translated with Google Translate.

Daniele Ruggeri D2

sent on September 15, 2024

Pros: Compact, lightweight, stabilized.

Cons: Slow and inaccurate MAF with low brightness.

Opinion: If you want a compact lens with this focal range there is no alternative, it is the smallest and lightest 100-400 ever. and it costs relatively little. I took it to photograph distant landscapes and on a tripod at low iso for reasoned photos is fine. The performance improves if you close the diaphragm a little .. but you will further lengthen the shutter speed and therefore you need an excellent tripod to avoid blur. I can make the comparison with the EF 200LII which at 200 is obviously a blade, but which multiplied x2 is not that great, so at this point I prefer the zoom. Bad instead to use in the evening handheld, the low brightness makes the iso rise a lot and not even the excellent stabilization can compensate for the lost aperture stops. It is the right lens for landscape or daytime travel. Not bad for photographing some flowers in the mountains either. For portraits I prefer the 200Lii (of course). If you have other needs you have to spend at least twice as much and carry a backpack with you.

Adelmo73

sent on August 01, 2024

Pros: Compactness, lightness

Cons: Lack of af distance switch, very slow AF at 400mm f/8

Opinion: Tested for 15 days alongside the EF L-series model, What about gold and iron. The only possible comparison is the focal length, for the rest this RF loses on all fronts. It is true that we are talking about an L-series lens vs a consumer RF but personally I would have expected much more. There is no selector for the minimum focusing distance, just as there is no selector to decide the type of AF to be used, but it is still a lens with slow and inaccurate focusing on both R5 and R6mk2. I don't feel like recommending the purchase.

Mattia Campos

sent on July 31, 2024

Pros: Weight and dimensions. Good sharpness. Stabilization. All in all pleasant construction.

Cons: It's a bit dark for certain types of photography. Blurred not exciting. Autofocus, in very low light conditions

Opinion: It's really a very nice lens, and very useful. It is very light and small in size, it is the lightest 100-400 on the market, unattainable even in the micro 4/3 field. Of course the materials taste a little too much of plastic and savings, and the lens hood is also missing.... But considering what it costs and the focal lengths it covers, you can easily pass over it. Especially since it is built with criteria and there is everything you need: the zooming is quite soft, the selectors are complete, there is a customizable ring, perhaps for the apertures, with precise and pleasant shots and there is a nice ring for manual focus (which instead is shamefully missing on the new and super acclaimed 200-800 ... which costs five times more) It is quite / very sharp, certainly for the vast majority of needs... If you then consider that today practically all photos, even at 100iso (except mine; ) are altered and disfigured by the Denoise and Topaz garbage on duty, I would say that the sharpness is more than abundant for all needs. For the record, in reality, it is not the sharpest of the 100-400, but it is almost equal to the Panaleica and the Olympus 100-400, with a lower brightness and a less "interesting" blur, that is, therefore at the bottom of the 100-400 ranking... But as I said before, today the sharpness is so high that it is more than fine to do everything and in the field there are practically no differences compared to its much "more than big brother" 100-500, except in shooting conditions sought ad hoc and artfully constructed "naturalistic" sets ( = perches in the gardens of the house ....) The autofocus is good, although not at the level of the 100-500 in terms of accuracy. When the light goes down, and here I must, as usual, specify what I mean when it falls a lot, that is, when it really gets dark, and not at 6.30 pm on July 31st ... !!!! The autofocus slows down and struggles a lot, especially where the contrasts are not good. However, apart from serious sports or very dynamic bird use, the autofocus is excellent for everything else. As with all other low light RFs (including 100-500) this 100-400 is more suitable to be used on FF, for the usual known reasons. that is, for the unexciting performance of Canon APSC sensors and the unexciting performance of Canon APSC cameras themselves. Although, as I have said and resaid before, and as I always say, today you can do "everything" even with a Sony RX10 .. let alone with an R7 with 100-400 ..... I recommend it especially for trips, even challenging, perhaps where there is a lot of landscape, a bit of fauna, and a little bit of everything. Compared to the 100-500 in fact it weighs less than half, and costs five times less, but it has an equally valid stabilization ... In quiet situations it can go down to 1/40, sometimes 1/20 with an excellent success rate. You can count on four abundant stops.

One_cl1k

sent on July 27, 2024

Pros: Lightweight, space-saving and insane stabilization

Cons: Dark, sharpness not much (let's give it a sufficiency)

Opinion: I took this optic for hiking in the mountains and something hunting, great for the weight and absurd stabilization combined with my Canon r6. The only cons is a lens that is a bit dark and in sharpness it does not excel, we still consider the price !. In my opinion for just over € 600 I recommend it, especially those who take photos in the mountains for its lightness. Regarding photographic hunting, I don't practice it often so I wouldn't know whether to recommend it or not. Personal rating ( landscape 8 / hunting 6 )

There are 10 more reviews. Show all »

Photos taken with Canon RF 100-400mm f/5.6-8 IS USM

Guild

by Peppe Cancellieri
60 comments, 4407 views

HI RES 19.0 MP

Hope

by Peppe Cancellieri
44 comments, 1810 views

HI RES 8.3 MP

... I seemed to see a roe deer ...

by Franca Abello
36 comments, 2235 views

HI RES 4.2 MP

Toast with the secretary

by Gazebo
60 comments, 1195 views

HI RES 17.4 MP

The fox and the snake

by Mariogiu
24 comments, 917 views

HI RES 8.1 MP

Waves

by Fabrizios53
46 comments, 1357 views

HI RES 7.0 MP

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Kingfisher

by Alb83
22 comments, 2048 views

HI RES 7.0 MP

A veil of sadness

by Peppe Cancellieri
29 comments, 1901 views

HI RES 13.7 MP

So far so close

by Coradocon
41 comments, 1100 views

HI RES 20.5 MP

Norway04 among rosebuds

by Gazebo
69 comments, 1154 views

HI RES 28.5 MP

The foreigner

by Peppe Cancellieri
38 comments, 1284 views

HI RES 17.7 MP

Flower fields in South Africa...

by Giuseppe Coppola
26 comments, 428 views

HI RES 27.8 MP

St. Gaudentius and the Rose

by Coradocon
50 comments, 885 views

HI RES 24.0 MP

Kissed by the sun

by Coradocon
37 comments, 690 views

HI RES 9.6 MP

Saltimpalo F.

by Joele
29 comments, 1083 views

HI RES 9.8 MP

Put Owls in your cannons!

by Diegoz
12 comments, 587 views

HI RES 3.8 MP

In flight oasis

by Marinella Bertoglio
16 comments, 1559 views

HI RES 12.1 MP

Sea Dog

by Coradocon
39 comments, 842 views

HI RES 14.3 MP

Untitled Photo

by Vincenzo Sciumè
9 comments, 356 views

HI RES 6.0 MP

Parco Nord Milan, 2022

by Giallo63
24 comments, 3518 views

HI RES 14.2 MP

Reflections

by Edoardo Vaccaro
28 comments, 954 views

HI RES 20.0 MP

Here I am again

by Lugace
11 comments, 2255 views

... And at the top I found a friend!!

by Thom
13 comments, 336 views

From up the top of the ancient tower

by Coradocon
46 comments, 455 views

HI RES 6.7 MP

Wave upon wave

by Fabrizios53
28 comments, 720 views

HI RES 7.8 MP

Bee-eater

by Alb83
8 comments, 1215 views

HI RES 11.3 MP

Scarce swallowtail

by Vincenzo Sciumè
10 comments, 293 views

HI RES 6.0 MP

Vanessa

by Vincenzo Sciumè
21 comments, 383 views

HI RES 6.0 MP

Czechoslovak wolf

by Daniele Stramaccioni
4 comments, 2192 views

Concentration

by Coradocon
27 comments, 455 views

HI RES 22.5 MP

Vulture - Test RF 100-400 + RF multiplier 1.4

by Ashran
1 comments, 2353 views

HI RES 30.1 MP

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Hummingbird butterfly

by Vincenzo Sciumè
15 comments, 154 views

HI RES 6.0 MP

Broom Sparrow (Prunella modularis)

by Alb83
8 comments, 566 views

HI RES 7.0 MP

Untitled

by Giallo63
16 comments, 1108 views

HI RES 3.3 MP

Untitled Photo

by Vincenzo Sciumè
9 comments, 144 views

HI RES 10.7 MP

Marsh harrier and grey heron

by Mariogiu
16 comments, 270 views

HI RES 12.8 MP

Quarrel between terns

by Mariogiu
7 comments, 927 views

HI RES 10.5 MP

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Reviews » Lenses » Lenses Canon » Canon RF 100-400mm f/5.6-8 IS USM

Canon RF 100-400mm f/5.6-8 IS USM : Specifications and Opinions

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Reviews

What do you think about this lens?

Photos taken with Canon RF 100-400mm f/5.6-8 IS USM