lightdow EF vs lightdow EF/EF-S 420-
Updated July 2026 — lightdow EF wins on image quality and build quality, lightdow EF/EF-S 420- wins on weight.
The EF 85mm f1.8 excels in portrait photography with superior image quality, while the EF/EF-S 420-800mm offers versatility for distant subjects. Choose based on your photography needs.
Why lightdow EF is better
Image Quality
Superior bokeh and clarity for portraits
Aperture
Faster f1.8 aperture for low light
After-Sales
Robust support and warranty services
Why lightdow EF/EF-S 420- is better
Price
Lower price point for budget-conscious buyers
Zoom Range
Versatile focal length for various subjects
Compatibility
Wide compatibility with Canon DSLRs
Overall score
Specifications
| Spec | lightdow EF | lightdow EF/EF-S 420- |
|---|---|---|
| Focal Length | 85mm | 420-800mm |
| Aperture | f1.8 | f8.3 |
| Manual Focus | Yes | Yes |
| Bokeh | Excellent | Good |
| Zoom Capability | No | Yes |
Dimension comparison
Overview
When comparing the EF 85mm f1.8 Portrait Lens and the EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens, it's crucial to understand their unique applications. The EF 85mm f1.8 is designed for portrait photography, offering a fixed focal length with a fast aperture, while the EF/EF-S 420-800mm is a versatile telephoto zoom lens ideal for capturing distant subjects. Both lenses are manual focus and compatible with a wide range of Canon cameras, but they cater to different photographic needs.
Price Comparison
The EF 85mm f1.8 is priced at $77.59, while the EF/EF-S 420-800mm comes in at $67.99. This makes the telephoto zoom lens about 17% cheaper than the portrait lens. While a lower price might attract budget-conscious photographers, it’s essential to consider the value each lens provides within its intended photographic niche. The price difference could influence a buyer's decision depending on their primary photography style.
Target Audience
The EF 85mm f1.8 is tailored for portrait photographers who prioritize depth of field and bokeh in their images. Its f1.8 aperture allows for stunning subject isolation, making it perfect for capturing expressive portraits. On the other hand, the EF/EF-S 420-800mm targets wildlife and sports photographers who need to capture subjects from a distance. This lens provides flexibility with its zoom capability, making it suitable for various shooting scenarios.
Manual Focus Experience
Both lenses require manual focus, which may appeal to photographers looking to enhance their skills. The EF 85mm f1.8 emphasizes precise control over focus, allowing photographers to experiment creatively with their camera settings. Similarly, the EF/EF-S 420-800mm encourages users to adjust shutter speed, ISO, and aperture carefully, fostering a deeper understanding of photography. This shared manual focus feature aligns with the philosophy of learning through practice.
Image Quality and Performance
The EF 85mm f1.8 is known for its superb image quality and charming bokeh, thanks to its six rounded aperture blades and advanced hybrid aspherical lens technology. This lens excels in producing clear images with minimal aberrations, making it a favorite among portrait photographers. Conversely, the EF/EF-S 420-800mm is designed for sharp image capture, featuring UMC technology to reduce flare and enhance image quality. While both lenses promise high-quality images, they serve different photographic purposes.
Compatibility
Both lenses boast wide compatibility with a range of Canon DSLRs, including popular models such as the EOS Rebel T8i, T7i, and 90D. This extensive compatibility means that whether you’re using an entry-level camera or a professional model, either lens can pair seamlessly with your equipment. However, photographers should ensure that their specific camera settings accommodate manual focus to avoid issues like the “no lens” error.
After-Sales Support
The EF 85mm f1.8 offers robust after-sales support, including lens maintenance and replacement during the warranty period. This commitment to customer service can provide peace of mind for buyers. The EF/EF-S 420-800mm lens also emphasizes support, although specific after-sales details are less highlighted. A strong after-sales service can enhance user satisfaction, especially for those investing in high-quality lenses.
Which should you buy?
Choosing between the EF 85mm f1.8 and the EF/EF-S 420-800mm ultimately depends on your photography style and needs. If you’re focused on portraits and want to create artistic images with beautiful bokeh, the EF 85mm f1.8 is the better choice, despite being pricier. However, if you require versatility for wildlife or sports photography, the EF/EF-S 420-800mm offers a more budget-friendly option with its zoom capabilities. Both lenses excel in their respective areas, making the decision largely subjective to your shooting preferences.

