BENOISON Telephoto Lens for Nikon - F Lens 420- vs Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens
Updated July 2026 — BENOISON Telephoto Lens for Nikon - F Lens 420- wins on weight and focal length, Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens wins on price and focus type.
The BENOISON lens is a budget-friendly option for Nikon users focused on telephoto photography, while the Canon lens excels in versatility and low-light performance for EOS R users.
Why BENOISON Telephoto Lens for Nikon - F Lens 420- is better
Price
BENOISON lens is significantly cheaper at $67.99.
Compatibility
Compatible with a wide range of Nikon DSLR cameras.
Durability
Built with high-quality materials for robust construction.
Why Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens is better
Autofocus
Canon lens features smooth and quiet continuous autofocus.
Aperture
Canon lens has a larger aperture of F/1.8 for low-light performance.
Versatility
Canon lens is suitable for various photography styles.
Overall score
Specifications
| Spec | BENOISON Telephoto Lens for Nikon - F Lens 420- | Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens |
|---|---|---|
| Brand | BENOISON | Canon |
| Type | Telephoto | Prime |
| Manual Focus | Yes | No |
| Compatibility | Nikon DSLR | EOS R |
| Low-Light | Limited | Excellent |
Dimension comparison
Overview of Products
The BENOISON Telephoto Lens for Nikon is priced at $67.99, while the Canon RF50mm F1.8 STM Lens is significantly more expensive at $219.00. This makes the BENOISON lens about 69% cheaper than the Canon lens. Both lenses cater to different camera systems and offer unique features that can benefit specific photography styles.
Intended Use
The BENOISON Telephoto Lens is designed primarily for wildlife and moon photography, boasting a focal length of 420-800mm. This allows photographers to capture distant subjects with great detail. In contrast, the Canon RF50mm F1.8 STM Lens is a versatile prime lens suitable for a variety of photography styles, including portraits, landscapes, and everyday snapshots. Its fixed focal length encourages creativity in composition. This fundamental difference in intended use can greatly influence a photographer's choice depending on their specific needs.
Build and Design
The BENOISON lens features a robust construction, emphasizing durability, which is essential for outdoor photography. It uses high-quality materials to withstand various conditions. On the other hand, the Canon lens is compact and lightweight, making it easy to carry around. Both lenses have their unique advantages: the BENOISON lens is built for longevity, while the Canon lens is designed for portability and convenience, especially for those who frequently shoot on the go.
Focus Mechanism
A crucial difference between these two lenses is their focus mechanism. The BENOISON Telephoto Lens is a manual focus lens, which means users must adjust the focus manually, requiring a more hands-on approach to photography. This lens does not support autofocus, which can be a disadvantage for those used to the convenience of autofocus systems. Conversely, the Canon RF50mm F1.8 STM Lens features a Stepping Motor that provides smooth and quiet continuous autofocus, making it ideal for both still photography and video recording. This difference could significantly impact the user experience, especially for those who prioritize speed and ease of use.
Aperture and Low-Light Performance
The BENOISON lens has a fixed aperture range of F/8.3-16, which limits its effectiveness in low-light situations compared to lenses with wider apertures. This can be a disadvantage for users looking to shoot in dim lighting or achieve a shallow depth of field. In contrast, the Canon lens has a large aperture of F/1.8, which allows for excellent low-light performance and the ability to create beautiful background blur, enhancing the aesthetic quality of portraits and other shots. For photographers who often find themselves in low-light environments, the Canon lens holds a significant advantage.
Compatibility
The BENOISON Telephoto Lens is compatible with a wide range of Nikon DSLR cameras, making it a versatile choice for Nikon users. This lens can be used on various models, from the D3500 to the D850, ensuring broad accessibility for Nikon photographers. On the other hand, the Canon RF50mm F1.8 STM Lens is specifically designed for the EOS R series mirrorless cameras. While both lenses are compatible with their respective brands, the choice of system may heavily influence which lens is the better option for the user.
Price and Value
At $67.99, the BENOISON lens offers exceptional value for entry-level photographers or those looking to explore telephoto photography without a significant financial commitment. In contrast, the Canon lens, priced at $219.00, is aimed at users willing to invest more for advanced features like autofocus and a larger aperture. The price difference of around $151.01 underscores the diverse market segments these lenses serve. While the BENOISON lens is budget-friendly, the Canon lens justifies its higher price with added functionality and performance.
Which should you buy?
Choosing between the BENOISON Telephoto Lens and the Canon RF50mm F1.8 STM Lens ultimately depends on your specific photography needs and preferences. If you are a Nikon user looking for an affordable option to capture distant subjects, the BENOISON lens is a great choice. Its lower price point makes it accessible for hobbyists and those exploring telephoto photography. However, if you own an EOS R series camera and prioritize versatility, low-light performance, and the convenience of autofocus, the Canon lens stands out as the superior option despite its higher cost.

