Canon RF45mm F1.2 STM vs YONGNUO YN50mm F1.8N Standard Prime Lens, Large
Updated July 2026 — Canon RF45mm F1.2 STM wins on price and brand value, YONGNUO YN50mm F1.8N Standard Prime Lens, Large wins on versatility.
The Canon RF45mm F1.2 STM offers superior optical performance and build quality, making it ideal for serious photographers, while the YONGNUO YN50mm F1.8N is a budget-friendly option for beginners.
Why Canon RF45mm F1.2 STM is better
Optical Performance
f/1.2 aperture allows for better low-light photography
Build Quality
Compact design with advanced aberration reduction
Intended Use
Ideal for professional photographers and serious hobbyists
Why YONGNUO YN50mm F1.8N Standard Prime Lens, Large is better
Price
Significantly cheaper at $102
Versatility
Supports both full-frame and APS-C cameras
User Experience
User-friendly for beginners with simple focus modes
Overall score
Specifications
| Spec | Canon RF45mm F1.2 STM | YONGNUO YN50mm F1.8N Standard Prime Lens, Large |
|---|---|---|
| Aperture | f/1.2 | f/1.8 |
| Focus Modes | Auto/Manual | Auto/Manual |
| Compatibility | RF Mount | Nikon DSLR |
| Weight | Lightweight | Lightweight |
| Construction | High Quality | Good Quality |
Dimension comparison
Pricing Comparison
The Canon RF45mm F1.2 STM is priced at $469.00, while the YONGNUO YN50mm F1.8N comes in at a significantly lower price of $102.00. This means the YONGNUO lens is about 78% cheaper than the Canon lens. Such a price difference can be a decisive factor for photographers on a budget or those who are just starting in photography. The lower price of the YONGNUO lens makes it an attractive option for users who want a versatile prime lens without breaking the bank.
Build Quality and Design
In terms of build quality, the Canon RF45mm F1.2 STM showcases a compact design with a large-diameter mount and short back focus, making it a well-engineered lens that balances performance and size. Although the YONGNUO YN50mm F1.8N is less expensive, it still offers a respectable construction, featuring gold-plated metal contacts to enhance signal conductivity and corrosion resistance. While the Canon lens is designed to reduce aberrations effectively, the YONGNUO lens supports both auto and manual focus modes, adding versatility to its usability.
Optical Performance
The optical performance of the Canon RF45mm F1.2 STM is superior, with its f/1.2 aperture allowing for faster shutter speeds in low-light conditions. This lens excels in creating beautiful bokeh, isolating subjects from their backgrounds and providing a three-dimensional look in photographs. In contrast, the YONGNUO YN50mm F1.8N has a slightly smaller aperture at f/1.8, which, while still beneficial for low-light photography, does not match the capabilities of the Canon lens. Consequently, for those prioritizing optical excellence and low-light performance, the Canon lens stands out.
Versatility
The YONGNUO YN50mm F1.8N is a versatile lens that supports both full-frame and APS-C format cameras, making it a flexible choice for various users. It also accommodates multiple shooting modes, including M/AV/TV/P, which can be beneficial for photographers seeking to experiment with different techniques. The Canon RF45mm F1.2 STM, while also versatile, is designed specifically for Canon's RF mount systems. Thus, photographers using Nikon systems may find the YONGNUO lens to be the more adaptable option.
Intended Use
The Canon RF45mm F1.2 STM is ideal for professional photographers and serious hobbyists looking for a lens that can deliver exceptional results for portraits, lifestyle photography, and everyday narratives. Its ability to create stunning imagery with a refined appearance makes it a top choice for creators who prioritize quality. On the other hand, the YONGNUO YN50mm F1.8N serves as a great addition to Nikon's 12-50mm kit lens, catering to beginners and casual photographers who seek a budget-friendly option without sacrificing essential features.
User Experience
Users of the Canon RF45mm F1.2 STM will appreciate the lens's compactness and lightweight design, which facilitates ease of use during photo shoots. The lens’s advanced features enable photographers to capture high-quality images effortlessly. Meanwhile, the YONGNUO YN50mm F1.8N provides an enjoyable user experience with its simple focus modes and good build quality, making it user-friendly for those who may be new to photography. For someone just starting out, the YONGNUO lens provides a stress-free experience, while the Canon lens caters more to those who are ready to invest in their craft.
Availability and Market Positioning
The Canon RF45mm F1.2 STM is positioned as a premium lens in the market, appealing to serious photographers who require top-notch performance and are willing to invest in it. The YONGNUO YN50mm F1.8N is positioned more towards entry-level and budget-conscious consumers looking to enhance their photography without a hefty price tag. While the Canon lens may not have a bestseller rank listed, its quality and brand reputation speak for themselves. In contrast, the YONGNUO lens’s affordability continues to attract a wide audience, providing a solid entry point into prime lenses for many users.
Which should you buy?
Choosing between the Canon RF45mm F1.2 STM and the YONGNUO YN50mm F1.8N ultimately depends on your photography needs and budget. If you're a professional or serious enthusiast looking for superior optical performance and versatility, the Canon lens is undoubtedly the better investment at $469.00. However, if you are a beginner or casual photographer seeking an affordable, versatile option, the YONGNUO lens at $102.00 offers excellent value without compromising on essential features. Consider what aspects are most important to your photography style before making your final decision.

