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BENOISON Telephoto Lens for Nikon - F Lens 420- vs Canon RF 75-

Updated July 2026 — BENOISON Telephoto Lens for Nikon - F Lens 420- wins on focal range, Canon RF 75- wins on weight and aperture.

The BENOISON lens offers a budget-friendly option for Nikon users, while the Canon lens provides superior autofocus and versatility for mirrorless users.

Why BENOISON Telephoto Lens for Nikon - F Lens 420- is better

Price

BENOISON lens is significantly cheaper at $67.99.

Focal Length

BENOISON offers a longer focal length of 420-800mm.

Build Quality

BENOISON emphasizes durability with robust construction.

Why Canon RF 75- is better

Autofocus

Canon lens features a responsive autofocus system.

Aperture Flexibility

Canon lens has a variable aperture of f/4-5.6.

Included Accessories

Canon lens comes with a shoulder bag and 64GB card.

Overall score

BENOISON Telephoto Lens for Nikon - F Lens 420-
65
Canon RF 75-
85

Specifications

SpecBENOISON Telephoto Lens for Nikon - F Lens 420-Canon RF 75-
Focal Length420-800mm75-300mm
Aperturef/8.3-16f/4-5.6
Focus TypeManualAutofocus
CompatibilityNikon DSLRCanon RF
Included AccessoriesNoneBag + Card

Dimension comparison

BENOISON Telephoto Lens for Nikon - F Lens 420-Canon RF 75-

Overview of the Products

The BENOISON Telephoto Lens for Nikon is priced at $67.99, making it a budget-friendly option for Nikon DSLR users. In contrast, the Canon RF 75-300mm f/4-5.6 Lens is significantly more expensive at $253.95, which is about 273% higher than the BENOISON lens. This pricing difference sets the stage for a comparison of features and usability.

Compatibility and Mounting

When it comes to compatibility, the BENOISON Telephoto Lens is designed specifically for Nikon DSLR cameras, boasting a comprehensive list of compatible models including the D3500, D850, and D7500. This lens uses a manual focus system, which requires users to set their camera to manual mode to avoid errors. On the other hand, the Canon RF 75-300mm lens is tailored for Canon RF-mount mirrorless cameras, providing versatility for a range of photography styles. Its compatibility with Canon's autofocus system allows for easier use and faster shooting, especially beneficial in dynamic situations like sports or wildlife photography.

Focal Length and Aperture

The BENOISON lens offers an impressive focal length range of 420-800mm, making it ideal for long-distance shots such as wildlife or lunar photography. However, it has a fixed aperture of f/8.3 at 420mm and f/16 at 800mm, limiting low-light performance and depth of field control. In contrast, the Canon RF 75-300mm lens covers a versatile 75-300mm range, equivalent to 120-480mm on APS-C sensors. Its variable aperture of f/4-5.6 allows for more flexibility in different lighting conditions, making it suitable for a broader range of scenarios, from portraits to landscapes.

Autofocus vs. Manual Focus

A significant distinction between these two lenses is their focusing systems. The BENOISON lens relies on manual focus, which can be challenging for photographers who are not accustomed to adjusting focus manually. This lens requires a hands-on approach, which can be both rewarding and cumbersome. Conversely, the Canon RF 75-300mm features a DC motor-driven autofocus system that offers responsive and accurate focusing, enhancing the user experience, particularly for fast-moving subjects. This automatic capability can save time and improve the quality of captured images in active environments.

Build Quality and Design

In terms of build quality, the BENOISON lens emphasizes durability with high-quality materials and robust construction, which is essential for outdoor photography. However, its lack of electronic contacts means it may not integrate seamlessly with modern camera features. The Canon RF 75-300mm lens, while lightweight at just over 1 lb, is designed for portability and ease of use, making it a great option for travel. Its compact design includes a 58mm filter thread, appealing to photographers who prioritize convenience without sacrificing image quality.

Image Quality and Performance

The BENOISON lens is designed for sharpness and clarity over its extensive focal range, but the fixed aperture can hinder performance in lower light conditions. Meanwhile, the Canon RF 75-300mm lens leverages Canon’s Super Spectra Coating to minimize lens flare and ghosting, which enhances contrast and color fidelity. This optical design ensures that images are sharp and vibrant, even in challenging lighting situations. Additionally, the seven-blade aperture diaphragm of the Canon lens creates beautiful bokeh, ideal for isolating subjects in portraits.

Accessories and Value Additions

The Canon RF 75-300mm lens includes a shoulder bag and a 64GB SD card in its package, adding to its value proposition. These accessories can be quite beneficial for photographers who need storage and protection right out of the box. In contrast, the BENOISON lens does not come with additional accessories, which could make it less appealing for those looking for a comprehensive kit. The inclusion of accessories with the Canon lens can enhance the overall user experience, particularly for beginners or those on the go.

Which should you buy?

Choosing between the BENOISON Telephoto Lens for Nikon and the Canon RF 75-300mm f/4-5.6 Lens ultimately depends on your specific needs and camera system. If you're a Nikon DSLR user looking for an economical option for long-distance photography, the BENOISON lens at $67.99 offers significant reach for a budget price. However, if you own a Canon mirrorless camera and value ease of use, autofocus capabilities, and added accessories, the Canon lens, despite its higher price of $253.95, may provide a more satisfying overall experience.