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Canon RF100- vs BM Premium High-Power 420-

Updated July 2026 — Canon RF100- wins on ease of use and portability, BM Premium High-Power 420- wins on weight and value.

The Canon RF100-400mm offers superior image quality and advanced features, making it the better choice for serious photographers. The High-Power 420-1600mm lens is a budget-friendly option for casual users.

Why Canon RF100- is better

Image Quality

Superior optics reduce chromatic aberration.

Autofocus

Fast and quiet autofocus with Nano USM.

Stabilization

Optical Image Stabilization with up to 6 stops.

Why BM Premium High-Power 420- is better

Price

Significantly cheaper at $139.99.

Zoom Range

Extensive zoom range up to 1600mm.

Compatibility

Works with a wider range of Canon cameras.

Overall score

Canon RF100-
85
BM Premium High-Power 420-
65

Specifications

SpecCanon RF100-BM Premium High-Power 420-
Focal Length100-400mm420-1600mm
Aperturef/5.6-8f/8.3
AutofocusYesNo
Image StabilizationYesNo
CompatibilityEOS RVarious DSLRs

Dimension comparison

Canon RF100-BM Premium High-Power 420-

Overview of the Canon RF100-400mm F5.6-8 IS USM

The Canon RF100-400mm F5.6-8 IS USM is a compact and lightweight telephoto lens designed for EOS R series cameras. It offers a versatile zoom range from 100mm to 400mm, making it suitable for capturing wildlife, sports, and travel photography. Priced at $699.00, this lens balances high image quality with portability and advanced technology, including Optical Image Stabilization and fast autofocus capabilities.

The RF100-400mm integrates well with Canon's RF telephoto extenders, allowing for greater versatility in focal lengths, making it an excellent choice for photographers looking to expand their lens collection without compromising on quality or convenience.

Overview of the High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens

The High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens offers an astonishing zoom range from 420mm to 1600mm, making it a striking option for long-distance photography. Priced at $139.99, it provides an affordable alternative for those seeking immense reach, especially for capturing wildlife and distant landscapes.

This lens is designed to be compatible with a wide range of Canon cameras, allowing photographers to maximize their camera's potential while enjoying enhanced photographic flexibility. However, its manual focus and higher f/8.3 aperture may limit its usability in low-light situations compared to more advanced lenses.

Image Quality Comparison

When it comes to image quality, the Canon RF100-400mm sets a high standard with its advanced optics, including a single Ultra Low Dispersion lens element that effectively reduces chromatic aberration. This results in crisp and vibrant images, crucial for both professional and amateur photographers.

In contrast, while the High-Power 420-1600mm lens provides a longer reach, its f/8.3 aperture may lead to less sharpness and clarity compared to the RF100-400mm, especially in challenging lighting conditions. Photographers looking for professional-grade image quality would likely prefer the Canon RF100-400mm over the manual lens, despite its higher price.

Autofocus and Stabilization Features

The Canon RF100-400mm excels in autofocus technology, featuring Canon’s Nano USM, which delivers fast, smooth, and quiet focus performance. Additionally, it boasts Optical Image Stabilization with up to 5.5 stops of shake correction, and even up to 6 stops when paired with compatible EOS R cameras.

On the other hand, the High-Power 420-1600mm lens is purely manual, which means users need to adjust focus manually. This may be a disadvantage for those who prefer quick shot setups or need to capture fast-moving subjects. The lack of image stabilization in the manual lens further emphasizes the RF100-400mm’s superior capability in dynamic shooting conditions.

Build and Design

The Canon RF100-400mm is engineered for portability, making it easy to carry during outdoor shoots. Its compact and lightweight design means it can be taken on long trips without adding excessive weight to your gear. The lens also features a control ring for quick adjustments, providing added convenience.

Conversely, the High-Power 420-1600mm lens, while offering a longer focal length, may be bulkier and less convenient to handle. Its design caters to the need for extensive zoom rather than ease of use, which could be a consideration for photographers who prioritize mobility in the field.

Price and Value for Money

At $699.00, the Canon RF100-400mm is significantly more expensive than the High-Power 420-1600mm lens, which retails for $139.99—about 80% cheaper. However, this price difference reflects their respective capabilities. The RF100-400mm offers advanced features, superior image quality, and faster autofocus, justifying its higher price point for serious photographers.

In contrast, the High-Power 420-1600mm lens may appeal to casual users or those on a budget who desire long-range capabilities without the commitment to a higher-end lens. It's essential for buyers to assess whether they need the premium features of the RF100-400mm or if the affordability of the manual lens meets their needs.

Compatibility with Camera Systems

The Canon RF100-400mm is specifically designed for EOS R series cameras, ensuring seamless integration and optimal performance with these models. This compatibility allows users to take full advantage of Canon’s newer technologies, enhancing the overall shooting experience.

Meanwhile, the High-Power 420-1600mm lens is compatible with a broader range of Canon DSLR models, including the Rebel series and various EOS series cameras. This versatility can be beneficial for photographers with multiple camera bodies or those using older Canon models, but it may not leverage the advanced features available in newer systems.

Which should you buy?

Ultimately, the choice between the Canon RF100-400mm F5.6-8 IS USM and the High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens boils down to your specific photography needs. If you prioritize image quality, autofocus performance, and stabilization, the RF100-400mm is the clear winner, despite its higher price.

Conversely, if you are on a budget and require an extensive zoom range for casual photography, the High-Power 420-1600mm lens offers a compelling option. It all comes down to weighing the importance of advanced features against affordability, allowing you to choose the lens that best fits your photographic goals.