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BENOISON Telephoto Lens for Nikon - F Lens 420- vs Viltrox

Updated July 2026 — BENOISON Telephoto Lens for Nikon - F Lens 420- wins on weight and focal length, Viltrox wins on price.

The BENOISON lens is a budget-friendly option for wildlife photography, while the Viltrox lens excels in low-light conditions and versatility.

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

Price

BENOISON is significantly cheaper at $67.99.

Focal Length

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

Durability

BENOISON is built for rugged outdoor use.

Why Viltrox is better

Aperture

Viltrox has a bright f/1.7 aperture for low-light shooting.

Autofocus

Viltrox features an advanced autofocus system.

Weight

Viltrox is lighter at 170g, making it more portable.

Overall score

BENOISON Telephoto Lens for Nikon - F Lens 420-
70
Viltrox
85

Specifications

SpecBENOISON Telephoto Lens for Nikon - F Lens 420-Viltrox
Focus TypeManualAuto
Camera TypeNikon DSLRSony E-mount
Max Aperturef/8.3-16f/1.7
ConstructionHigh QualityLightweight
Use CaseWildlifeEveryday

Dimension comparison

BENOISON Telephoto Lens for Nikon - F Lens 420-Viltrox

Overview of the BENOISON Telephoto Lens and Viltrox 25mm F1.7 E

When comparing the BENOISON Telephoto Lens and the Viltrox 25mm F1.7 E, we find two distinct lenses catering to different photography styles. The BENOISON lens is priced at $67.99, while the Viltrox lens comes in at $176.00, which makes the BENOISON about 61% cheaper. This significant price difference reflects their distinct features and intended uses.

The BENOISON Telephoto Lens, with a focal length of 420-800mm, is designed for nature and wildlife photography, while the Viltrox 25mm F1.7 E is a prime lens suitable for everyday shooting and low-light conditions. Understanding the differences in design and functionality can help you choose the right lens for your photography needs.

Build Quality and Design

In terms of build quality, both lenses are robust but serve different purposes. The BENOISON lens is constructed with high-quality materials that ensure durability and longevity, which is essential for outdoor photography. Its design allows it to be used with a range of Nikon DSLR cameras, making it versatile for photographers looking to capture wildlife or scenic vistas.

Conversely, the Viltrox lens, although lighter at only 170g, offers a compact design that is ideal for travel and everyday use. Its construction is designed for the modern mirrorless camera user, focusing on portability without sacrificing performance. The choice between these two designs largely depends on whether you prioritize portability or ruggedness in your photography.

Focusing Mechanism

The focusing mechanism is another critical area where these lenses differ significantly. The BENOISON Telephoto Lens features a manual focus system, requiring the photographer to adjust the focus ring manually. This means it is essential to set the camera to manual mode, which can be challenging for those unaccustomed to manual focus photography.

On the other hand, the Viltrox 25mm F1.7 E incorporates an advanced autofocus system using an STM stepper motor. This provides a quiet and efficient autofocus experience, ideal for both photo and video shooting. The autofocus capabilities of the Viltrox lens allow for quick adjustments, especially beneficial in dynamic shooting environments where subjects may move quickly.

Aperture and Low-Light Performance

When it comes to aperture and low-light performance, the Viltrox 25mm F1.7 E stands out with its bright f/1.7 maximum aperture. This feature allows for exceptional low-light shooting and provides greater control over depth of field, making it suitable for portraits and creative photography.

In contrast, the BENOISON Telephoto Lens has a non-adjustable aperture that ranges from f/8.3 at 420mm to f/16 at 800mm. While it is adequate for outdoor photography in good lighting conditions, it does not offer the same level of versatility in low-light situations as the Viltrox lens. Therefore, if low-light performance is a priority, the Viltrox lens would be the better option.

Compatibility

Compatibility is a crucial factor when choosing a lens, and both products cater to different camera systems. The BENOISON Telephoto Lens is specifically designed for Nikon DSLR cameras, compatible with a wide range of models, including the D850, D7500, and many others. This makes it a great choice for Nikon users looking to expand their lens collection.

In contrast, the Viltrox 25mm F1.7 E is tailored for Sony E-mount cameras, including models like the ZV-E10 II and A7 series. If you own a Sony mirrorless camera, the Viltrox lens is designed to take full advantage of the camera's features, including face and eye recognition for precise autofocus.

Price Comparison

The price difference between the two lenses is substantial, with the BENOISON Telephoto Lens retailing at $67.99 and the Viltrox 25mm F1.7 E at $176.00. This makes the BENOISON lens about 61% cheaper, which may appeal to budget-conscious photographers. However, the higher price of the Viltrox lens reflects its advanced features, including autofocus and better low-light performance.

Ultimately, the decision on which lens to purchase may come down to how much you are willing to invest based on your specific photography needs. If you are primarily focusing on wildlife or landscape photography, the BENOISON lens offers significant value. However, for those looking for versatility and superior low-light capability, the Viltrox lens may justify its higher price.

Intended Use

The intended use of each lens is a significant differentiator. The BENOISON Telephoto Lens is aimed at photographers who enjoy wildlife, sports, or landscape photography, where long focal lengths are advantageous. Its manual focus requirement encourages a more hands-on approach to photography, ideal for enthusiasts who appreciate the art of manual adjustments.

In contrast, the Viltrox 25mm F1.7 E is designed for everyday use, allowing for quick shooting and adaptability in various situations. Whether you are capturing family gatherings, street photography, or low-light events, the Viltrox lens shines due to its autofocus system and lightweight design. Your choice should align with your primary photography style and settings.

Which should you buy?

Ultimately, the decision between the BENOISON Telephoto Lens and the Viltrox 25mm F1.7 E hinges on your specific needs and camera system. If you're a Nikon DSLR user focused on wildlife or landscapes, the BENOISON lens offers a budget-friendly option with a long focal length. However, if you own a Sony mirrorless camera and prioritize versatility, low-light performance, and ease of use, the Viltrox lens may be worth the higher investment. Consider your photography style, budget, and camera compatibility when making your choice.