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.
The EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens offers an affordable option for Canon users, while the VILTROX 35mm F1.7 excels in autofocus and low-light performance for Sony users.
Why lightdow EF/EF-S 420- is better
Price
Lower price point at $67.99
Telephoto Range
Super telephoto capability for distant subjects
Manual Control
Encourages skill development in manual focusing
Why VILTROX is better
Autofocus
Efficient and reliable autofocus system
Aperture
Larger aperture of F1.7 for low-light performance
Weight
Lightweight design at 170 grams for portability
Overall score
Specifications
| Spec | lightdow EF/EF-S 420- | VILTROX |
|---|---|---|
| Max Aperture | F8.3 | F1.7 |
| Focus Type | Manual | Autofocus |
| Compatibility | Canon | Sony |
| Image Quality | Good | Excellent |
| Bokeh Quality | Pleasant | Beautiful |
Dimension comparison
Overview of the EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens
The EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens is a manual focus lens designed for Canon EOS cameras, while the VILTROX 35mm F1.7 is an autofocus prime lens tailored for Sony E-Mount cameras. The former offers a super telephoto range perfect for capturing distant subjects, while the latter is ideal for portraits and everyday photography with its large aperture.
This telephoto lens comes at a price of $67.99, making it an attractive option for those looking to explore telephoto photography without breaking the bank. In contrast, the VILTROX lens is priced at $179.00, which places it in a different market segment focused on high-quality, versatile photography with autofocus capability.
Design and Build Quality
The design of the EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens emphasizes manual control and durability. Its fully manual design provides photographers with precise focus control, allowing them to adjust settings like shutter speed and ISO for creative results. This lens is compatible with a variety of Canon cameras, enhancing its versatility.
On the other hand, the VILTROX 35mm F1.7 is built with portability in mind, weighing just 170 grams. Its lightweight design makes it suitable for spontaneous shooting, whether in bustling city environments or tranquil landscapes. The compact nature of the VILTROX lens does not compromise on optical quality, featuring a sophisticated structure of 11 elements in 9 groups.
Focus and Performance
The EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens relies on manual focus, which can be both a challenge and an opportunity for photographers seeking to refine their skills. This lens encourages users to develop a deeper understanding of photographic principles, making it a good choice for those willing to invest time in mastering the art of manual focusing.
In contrast, the VILTROX 35mm F1.7 features a built-in STM stepping motor that provides efficient and reliable autofocus. This capability is particularly advantageous for capturing fast-moving subjects, as it supports eye and face autofocus, reducing latency and improving tracking performance. The autofocus feature makes the VILTROX lens more user-friendly, especially for those who prefer not to manually adjust focus.
Aperture and Image Quality
The EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens features a maximum aperture of F8.3, which varies with focal length, providing a range of creative options. While it may not excel in low-light conditions, it delivers sharp images with a pleasing background bokeh thanks to its unique internal focus mechanism and UMC technology designed to minimize aberrations and flare.
Conversely, the VILTROX 35mm F1.7 boasts a large aperture of F1.7, which excels in low-light environments and allows for shallow depth-of-field effects. This lens is designed to create beautiful natural bokeh with its 9 aperture blades, making it a strong contender for portrait and artistic photography. The optical design also promises high-definition results, showcasing the potential for stunning image quality.
Compatibility and Use Cases
The EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens is compatible with a wide range of Canon DSLR cameras, including popular models such as the Rebel T8i, 90D, and 5D Mark IV. This broad compatibility makes it ideal for photographers already invested in the Canon ecosystem who want to expand their telephoto capabilities.
The VILTROX 35mm F1.7 is compatible with various Sony E-Mount cameras, including the A7 series and FX3. This lens shines in everyday use, making it suitable for street photography, portraits, and landscapes. The autofocus feature allows users to capture fleeting moments effortlessly, making it a versatile choice for both enthusiasts and professionals.
Price Comparison
When it comes to pricing, the EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens is significantly more affordable, priced at $67.99. In comparison, the VILTROX 35mm F1.7 comes in at $179.00, which is about 163% more expensive than the Lightdow lens. This price difference reflects the varying target audiences and features of each lens, with the VILTROX lens justifying its higher price tag through advanced autofocus technology and superior aperture performance.
Customer Appeal and Market Position
The EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens caters primarily to hobbyists and photographers looking to experiment with telephoto photography without a hefty investment. Its manual focus design appeals to those who enjoy the challenge and artistry of photography, making it a niche product with a specific audience.
In contrast, the VILTROX 35mm F1.7 targets a broader audience, including both casual photographers and professionals seeking a reliable, high-quality lens for diverse shooting scenarios. Its autofocus capabilities and lightweight design make it a favored choice for on-the-go photographers who want to ensure they never miss a moment.
Which should you buy?
Choosing between the EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens and the VILTROX 35mm F1.7 depends on your photography needs and preferences. If you are a Canon user looking to explore telephoto photography at a lower price point, the Lightdow lens offers a compelling option, especially for those interested in manual focus. However, if you own a Sony E-Mount camera and prioritize autofocus and low-light performance, the VILTROX lens is well worth the investment for its versatility and image quality. Ultimately, your choice should align with your shooting style and the types of photography you wish to pursue.

