Description
Product Overview
The Canon RF45mm F1.2 STM is a standard prime lens designed for Canon EOS R series cameras, combining advanced optics with a compact, affordable build. It features a large f/1.2 maximum aperture that produces exceptional bokeh and performs brilliantly in low-light environments. The lens incorporates Canon’s first PMo aspheric lens element in an F1.2 design, minimizing aberrations for sharp, accurate images. With a 45mm focal length that mirrors natural human vision, it offers a versatile perspective for various shooting scenarios. Additional specifications include a minimum focusing distance of 1.5 feet, compatibility with 67mm filters, and a dedicated control ring for customizable settings.

Usage
This lens is ideal for portrait photographers, event shooters, and enthusiasts seeking a natural perspective with professional-grade blur effects. It excels in indoor settings like weddings and performances, where low light and fast action require a wide aperture. The 45mm focal length is also perfect for street photography, travel, and everyday moments, providing a framing that feels authentic and engaging. EOS R series users will appreciate the lightweight design for extended handheld use, making it a reliable choice for both casual and professional applications.
Why Choose Us
Canon’s RF45mm F1.2 STM stands out for its innovative use of a PMo aspheric lens, which enhances image sharpness and reduces distortions without increasing size. The combination of the RF mount’s large diameter and short back focus allows for a compact form factor while maintaining optical excellence. With a gear-type STM motor and magnetic detection system, it delivers smooth, precise autofocus even in challenging conditions. This lens offers exceptional value, providing F1.2 performance at an accessible price point, backed by Canon’s reputation for quality and reliability.
Key Features
- Fast f/1.2 aperture for stunning bokeh and low-light capability
- 45mm focal length providing a natural, versatile perspective
- Compact and lightweight design with STM autofocus for smooth operation
- Customizable control ring for quick adjustments to settings like ISO and white balance
- PMo aspheric lens technology for reduced aberrations and sharper images
FAQ
What cameras is this lens compatible with?
This lens is designed for use with Canon EOS R series cameras, ensuring full functionality and optimal performance.
How does the f/1.2 aperture benefit photography?
The wide f/1.2 aperture allows more light into the lens, enabling faster shutter speeds in low light and creating a pronounced background blur that makes subjects stand out.
Is the autofocus quiet and reliable?
Yes, the gear-type STM motor paired with a magnetic detection system provides smooth, precise, and quiet autofocus, ideal for video and still photography.
Can I use filters with this lens?
Yes, the lens accommodates 67mm filters, allowing you to attach polarizers or ND filters for creative control.
What is the minimum focusing distance?
The minimum focusing distance is 1.5 feet (17.7 inches), giving you flexibility for close-up shots while maintaining sharpness.







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