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lightdow EF/EF-S 420- vs VILTROX

Updated July 2026 — lightdow EF/EF-S 420- wins on weight and focal length, VILTROX wins on price and focus type.

The VILTROX 35mm f1.7 offers superior low-light performance and autofocus convenience, making it the better choice for most photographers. However, the EF/EF-S 420-800mm lens provides excellent zoom capabilities at a budget-friendly price.

Why lightdow EF/EF-S 420- is better

Price

The EF/EF-S 420-800mm lens is significantly cheaper.

Zoom Range

Offers a much longer focal length for distant subjects.

Manual Control

Provides full manual focus for artistic control.

Why VILTROX is better

Low-Light

The f1.7 aperture excels in low-light conditions.

Autofocus

Fast and precise autofocus for convenience.

Optical Quality

Optimized design minimizes distortions and flare.

Overall score

lightdow EF/EF-S 420-
70
VILTROX
85

Specifications

Speclightdow EF/EF-S 420-VILTROX
Max Aperturef/8.3f/1.7
Focal Length420-800mm35mm
WeightHeavyLight
AutofocusNoYes
Image QualityGoodExcellent

Dimension comparison

lightdow EF/EF-S 420-VILTROX

Overview of the Lenses

The EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens is designed for Canon DSLR cameras, while the VILTROX 35mm f1.7 E is tailored for Sony E-mount cameras. The former is priced at $65.69, making it significantly more affordable than the VILTROX at $179.00, which is approximately 173% more expensive. This price difference raises questions about their respective value propositions for photographers.

Design and Build Quality

The EF/EF-S 420-800mm lens features a fully manual focus design, which gives photographers precise control over their shots. Its robust construction ensures durability, catering to those who prefer a hands-on approach in their photography. In contrast, the VILTROX 35mm f1.7 boasts a compact and lightweight design, weighing only 170g. This lens is made with a sleek metal body, enhancing its portability without compromising on build quality. The choice between manual focus and a lightweight autofocus lens will depend on the photographer's style and needs.

Aperture and Low-Light Performance

With a maximum aperture of f/8.3 at 420mm and f/16 at 800mm, the EF/EF-S 420-800mm lens is less suited for low-light situations compared to the VILTROX 35mm f1.7, which features a bright aperture of f/1.7. This larger aperture allows the VILTROX lens to perform exceptionally well in low-light conditions, producing beautiful background bokeh, making it ideal for portraits and street photography. The choice of aperture can significantly impact the types of photography each lens excels in, with the VILTROX clearly standing out in terms of low-light capabilities.

Focal Length and Versatility

The EF/EF-S 420-800mm lens offers an impressive focal length range, making it highly versatile for shooting distant subjects such as wildlife or landscapes. Its ability to zoom from 420mm to 800mm allows for a wide range of compositions, ideal for photographers seeking to capture remote details. On the other hand, the VILTROX 35mm lens provides a 53mm equivalent focal length, which is excellent for everyday photography. This lens excels in portrait and street photography, making it versatile for various scenarios but lacks the extreme reach of the EF/EF-S 420-800mm.

Autofocus and Manual Control

The VILTROX 35mm f1.7 is equipped with a new STM motor for fast and precise autofocus, providing near-silent operation, which is advantageous for video recording and quiet environments. In contrast, the EF/EF-S 420-800mm is a fully manual focus lens, requiring photographers to adjust focus manually. This design can be beneficial for those who appreciate the artistic control it offers, but it can also be challenging for beginners or in fast-paced shooting situations. The choice between autofocus convenience and manual control can significantly affect the shooting experience.

Optical Design and Image Quality

The VILTROX 35mm f1.7 features an optimized optical design with 11 elements in 9 groups, including special elements to minimize distortions and flare. This design ensures outstanding image quality across various photography styles. Conversely, the EF/EF-S 420-800mm lens employs UMC technology to reduce aberrations and flare but is limited by its manual focus nature. Photographers looking for superior optical performance may lean toward the VILTROX for its advanced design, while those who enjoy manual adjustments might still appreciate the image quality of the Lightdow lens.

Handling and Portability

For photographers on the go, the VILTROX 35mm f1.7 is exceptionally portable, weighing only 170g and featuring a compact design, making it easy to carry for extended periods. The EF/EF-S 420-800mm, while offering remarkable zoom capabilities, is likely to be bulkier and heavier, which may be less convenient for everyday use. Photographers need to consider how much weight they are willing to carry based on their shooting style and location.

Which should you buy?

Deciding between the EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens and the VILTROX 35mm f1.7 E largely depends on your photography style and needs. If you're looking for a budget-friendly option with significant zoom capabilities for wildlife and landscapes, the EF/EF-S 420-800mm lens at $65.69 offers excellent value. However, if you prioritize low-light performance, autofocus convenience, and superior image quality, the VILTROX 35mm f1.7, despite its higher price of $179.00, may be the better choice for your photography endeavors.