Canon - Lente 45mm f/1.2 STM (RF Mount)

Canon RF 45mm F1.2 STM: Affordable f/1.2 Performance for Enthusiasts

The Canon RF 45mm F1.2 STM is a groundbreaking standard prime lens that brings an ultra-fast f/1.2 aperture to photographers at an remarkably accessible price point. It is designed not as a clinically perfect optical instrument, but as a "character" lens that offers a distinct and emotionally powerful look for creative expression. Priced well under $500, it is destined to be an ultra-popular choice for a wide range of photographers and videographers .

Key Features & Specifications

Optical Design and Image Character
Fast Aperture: The f/1.2 maximum aperture is a significant advantage, allowing for extremely shallow depth of field and shooting in very dark conditions .

Optical Construction: Features 9 elements in 7 groups, including one PMo (Plastic Molded) aspherical element to help control aberrations and reduce size .

"Character" over Clinical Sharpness: Canon positions this lens as having a unique character. Wide open at f/1.2, it renders images with a distinct softness that flatters subjects like portraits, rather than seeking absolute sharpness. It sharpens up considerably when stopped down to around f/2.8 or f/4 .

Bokeh Quality: With a 9-bladed aperture, the lens produces smooth, circular background blur. Some reviews note it can produce a distinct "bubble bokeh" similar to vintage lenses .

Physical Design and Handling

Compact and Lightweight: Weighing only approximately 346g (0.76 lb) and measuring 78mm in diameter by 75mm in length, this is Canon's lightest-ever EF/RF f/1.2 lens. It balances excellently with smaller cameras like the EOS R8 .

Filter and Hood: Accepts 67mm filters. The lens hood (ES-73B) is sold as an optional extra .

Control Ring: Features a dedicated and customizable control ring for adjusting settings like ISO, aperture, or exposure compensation directly on the lens .

Autofocus and Performance
Autofocus System: Utilizes a gear-type STM (Stepping Motor) for autofocus. It's not an internal focusing design, so the front optical group moves during focusing. Focus is not as quick as on professional L-series lenses but is suitable for general use .

Minimum Focus Distance: Can focus as close as 0.45 meters (1.48 ft), with a maximum magnification of 0.13x .

Ideal Use Cases
The natural 45mm angle of view (51-degree diagonal) on a full-frame camera makes this an incredibly versatile lens for numerous applications .

Portraiture and Lifestyle: Excellent for environmental portraits, full-body shots, and lifestyle photography, where the f/1.2 aperture beautifully separates the subject from the background .

Street and Travel Photography: Its compact size, light weight, and natural perspective make it ideal for discrete street shooting and all-day travel photography .

Low-Light and Night Photography: The f/1.2 aperture allows for faster shutter speeds and lower ISO settings in dimly lit environments, making it a powerful tool for indoor events or night scenes .