Canon RF 45mm f/1.2 STM : Specifications and Opinions

The Canon RF 45mm f/1.2 STM is a standard lens for FF and APS-C, manufactured from 2025. The focus is done by Stepper Motor, it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 549 €;

8 users have given it an average vote of 9.3 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	45 mm
Angle of view	51.3°
Format	FF, APS-C
Max. aperture	f/1.2
Aperture blades	9
Lenses/Groups	9 elements in 7 groups
Min. focus distance	0.45 meters
Reproduction ratio	0.13x
Features
Stabilization	No
Focus	Stepper Motor
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters	67 mm
Lens hood	Yes (not supplied)
Weather sealing	No
Weight	346 g
Dimensions	78 x 75 mm
Buy
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Reviews

What do you think?

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Burned1975

sent on 19 Marzo 2026

Pros: weight, balance, haptics, f1.2, pricing, colour, sharpness, stearing-ring

Cons: No lens hood, AF is not fast - but "ok", not perfectly quiet, no stabilisation, for Canon-User cheap - but 500 € are 500 €!

Opinion: It is not an "L". You feel it, you hear it, you see it by using. But the pictures are extremely good. It makes SO MUCH fun to use it, because the weight and balance are perfect! My RF50mm f1.2L is better and sharper and and and... but it is NO FUN to use it, because of the weight. I love both - the 45mm and the 50mm. When it's an important day (marriage etc.), i will take the 50mm f1.2L - because it's the best you can use. But in daily using and on tours the RF45mm f1.2 is the choice! BUT: 500 € are not less money. For an Canon (closed-)System-User yes - but being honest: not really.

The following opinions have been automatically translated with Google Translate.

Gianka79

sent on 24 Dicembre 2025

Pros: Weight, shape, aperture size...

Cons: Maybe not suitable for all tastes. It's not an L-series (FINALLY)

Opinion: Not to say.... a lens designed FINALLY for those who do not live from photography, but love to shoot and not snatch mega graphs and statistics.... With € 500 you can take home a fixed focal length with an extraordinary aperture. Let's get to the photo side.... I tested it in 2 events.... sports and portrait. It drove me crazy, I didn't feel the lack of zoom and that pinch of wide angle that you perceive I like and it excited me. Combined with the R6 mk2 it tracks the subject without problems and even at full aperture the shots are sharp and in focus.... On the video side it is fun and very light, unlike the 35mm 1.4 vlc, it does not have that annoying ring for the focus selector that sometimes you touch involuntarily. It doesn't have a lens hood it's true, but it's certainly available from third parties or easily 3d printed if someone wants. I recommend it to those like me who don't want to spend the madness of the 50 1.2 and not have a heavy fixed to carry in their backpack.

Lars

sent on 18 Dicembre 2025

Pros: Perfectly balanced weight, excellent blur and detachment with the background at 1.2, excellent sharpness from 1.2, cheap

Cons: The standard lens hood is missing, but we already knew

Opinion: It is not always necessary to buy an L-series, even as a professional. Very happy, arrived today, tested and it is really the lens I was looking for last year when I bought the 50mm 1.4 L out of desperation, for heaven's sake beautiful, excellent performance, but the 1.4 is absolutely unbalanced! (Horrible is the new magnet focusing technology, which as soon as the camera is turned off the focus remains free and you feel the play of the piece inside oscillating.) In fact, resold the 1.4 and immediately bought the 45mm 1.2. Perfect, balanced in the camera, fast, sharp, comfortable to use in reportage, right weight and I already feel it an extension of my eye.

Photos taken with Canon RF 45mm f/1.2 STM

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17 comments, 2062 views

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0 comments, 1372 views

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4 comments, 1275 views

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by Emilio94
3 comments, 552 views

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Canon RF 45mm f/1.2 STM test

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0 comments, 202 views

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0 comments, 121 views

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7 comments, 254 views

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0 comments, 301 views

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by One_cl1k
0 comments, 168 views

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by Arran
0 comments, 332 views

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by Mmulinai
2 comments, 613 views

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by Alessandro Puiatti
0 comments, 109 views

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by Alessandro Puiatti
0 comments, 58 views

The sample photos are selected automatically between all photos posted by JuzaPhoto members, using the camera and the lens selected in the techs. If you find evident errors (e.g. photos taken with cameras and lenses that are not available yet), you can contribute to improve the page by sending a private message to the user that has entered incorrect values in the photo caption.

Canon RF 45mm f/1.2 STM : Specifications and Opinions

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Reviews

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Photos taken with Canon RF 45mm f/1.2 STM