vsversusfinder

S erounder vs lightdow EF/EF-S 420-

Updated July 2026 — S erounder wins on weight and magnification, lightdow EF/EF-S 420- wins on zoom range and price.

The fisheye lens is a budget-friendly option for creative photography, while the telephoto lens offers advanced features for serious photographers.

Why S erounder is better

lower price

The fisheye lens is priced at $52.35.

lightweight

The fisheye lens weighs only 228 grams.

easy to use

The fisheye lens is compatible with all 37mm cameras.

Why lightdow EF/EF-S 420- is better

longer range

The telephoto lens has a zoom range of 420-800mm.

professional quality

The telephoto lens offers high detail for distant subjects.

manual focus

The telephoto lens allows for precise manual focus control.

Overall score

S erounder
70
lightdow EF/EF-S 420-
85

Specifications

SpecS erounder lightdow EF/EF-S 420-
MaterialAluminum AlloyUnknown
EffectFisheyeTelephoto
Focus TypeManualManual
ApertureFixedVariable
Included AccessoriesStorage BagAdapter Ring

Dimension comparison

S erounder lightdow EF/EF-S 420-

Overview of the Products

The 37mm 0.25X Super Fisheye Lens Additional Lens is priced at $52.35, while the EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens is available for $67.99. At a price difference of about 30%, the fisheye lens offers an entry point for photographers looking to experiment with wide-angle effects, while the telephoto lens targets more professional applications with its extended focal range.

The fisheye lens is designed for those who require a unique, wide perspective, making it suitable for creative photography. In contrast, the telephoto lens is aimed at serious photographers interested in capturing distant subjects with a focus on detail and clarity. Both products cater to different needs and styles in photography.

Design and Build Quality

The 37mm 0.25X Super Fisheye Lens is constructed from high-quality aluminum alloy and optical glass, ensuring durability and longevity. Weighing approximately 228 grams, it is small and lightweight, making it easy to carry and store. Additionally, the lens comes with a storage bag and a dust removal cloth, enhancing its portability and maintenance.

On the other hand, the EF/EF-S 420-800mm Telephoto Zoom Lens is built with a fully manual focus design, which gives photographers greater control over their shots. This lens is also equipped with an adapter ring at no additional cost, making it versatile for various Canon DSLR models. While it doesn’t list a specific weight, its design focuses on precision and stability during use, appealing to those who prioritize craftsmanship in their gear.

Compatibility and Usability

The 37mm 0.25X Super Fisheye Lens is compatible with all 37mm caliber camera lenses, making it a flexible option for users who already own cameras with this specification. Its ease of use and portability are additional benefits, as it can be quickly applied and removed as needed.

In contrast, the EF/EF-S 420-800mm Telephoto Zoom Lens is designed for a wide range of Canon EOS models, including the Rebel series and the 5D Mark IV. However, it requires users to operate in full manual mode after installation, which could be a barrier for those less familiar with manual photography. This lens appeals to users who are comfortable with more complex settings and seek to enhance their skills.

Image Quality and Performance

The 37mm 0.25X Super Fisheye Lens provides a unique fisheye effect that allows for creative compositions and expansive views. It features a magnification of 0.25X, ideal for capturing wide landscapes or artistic shots. Its dual-part design also allows the macro lens to be used independently, offering a magnification effect of 12.5 times, which is excellent for close-up photography.

Conversely, the EF/EF-S 420-800mm Telephoto Zoom Lens excels in capturing distant subjects with impressive detail, thanks to its extensive zoom range. The lens has automatic aperture adjustments based on focal length, which aids in maintaining exposure across varying distances. This capability makes it particularly valuable for wildlife and sports photography, where reaching distant subjects is essential.

Portability and Convenience

The 37mm 0.25X Super Fisheye Lens is lightweight, compact, and comes with a storage bag, making it highly portable and convenient for photographers on the go. Its small size allows it to be easily stowed in a camera bag, ensuring that it can be readily available for spontaneous shooting opportunities.

In comparison, the EF/EF-S 420-800mm Telephoto Zoom Lens, while not specifically listed with weight and size, is generally heavier due to its larger build and complex mechanics. This can make it less convenient for casual shooting or travel, as it may require more careful handling and dedicated space in a camera bag.

Target Audience

The 37mm 0.25X Super Fisheye Lens is ideal for amateur photographers, hobbyists, or anyone looking to add a creative touch to their photography without a significant financial investment. Its ease of use and unique effects make it appealing for those who want to experiment with wide-angle photography.

In contrast, the EF/EF-S 420-800mm Telephoto Zoom Lens is tailored for professionals or advanced enthusiasts who prioritize high-quality image capture and have experience with manual settings. Its advanced features and compatibility with a wide range of Canon cameras cater to users who are serious about their photography and willing to invest time in learning manual techniques.

Price Comparison

The 37mm 0.25X Super Fisheye Lens is priced at $52.35, whereas the EF/EF-S 420-800mm Telephoto Zoom Lens costs $67.99. This makes the fisheye lens about 30% cheaper than the telephoto option. For those on a budget or just starting in photography, the lower price point of the fisheye lens makes it an attractive choice. However, the higher price of the telephoto lens could be justified by its professional capabilities and versatility for advanced users.

Which should you buy?

Choosing between the 37mm 0.25X Super Fisheye Lens and the EF/EF-S 420-800mm Telephoto Zoom Lens ultimately depends on your photography needs and experience level. If you're looking for a budget-friendly, versatile option to experiment with wide-angle shots, the fisheye lens is the way to go. However, if you are a serious photographer seeking to capture distant subjects with high detail and have the expertise to manage manual settings, the telephoto lens may be the better investment. Each lens serves a distinct purpose, catering to different styles and preferences in photography.