Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens vs Big Mike's High-Power 420-
Updated July 2026 — Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens wins on aperture and size, Big Mike's High-Power 420- wins on zoom and weight.
The Canon RF50mm F1.8 STM Lens excels in image quality and versatility, while the High-Power 420-1600mm lens offers budget-friendly telephoto capabilities.
Why Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens is better
Image Quality
Superior low-light performance with f/1.8 aperture
Versatility
Better for various photography styles
Portability
Compact and lightweight design
Why Big Mike's High-Power 420- is better
Price
More affordable option at $139.99
Zoom Capability
Extensive zoom range from 420mm to 1600mm
Compatibility
Fits a wider range of Canon DSLR models
Overall score
Specifications
| Spec | Canon RF50mm F1.8 STM Lens, Fixed Focal Length Prime Lens | Big Mike's High-Power 420- |
|---|---|---|
| Focal Length | 50mm | 420-1600mm |
| Aperture | f/1.8 | f/8.3 |
| Compatibility | EOS R | Canon DSLRs |
| Weight | 0.5 lbs | 3 lbs |
| Price | $219.00 | $139.99 |
Dimension comparison
Overview of the Canon RF50mm F1.8 STM Lens
The Canon RF50mm F1.8 STM Lens is a compact, lightweight prime lens priced at $219.00, designed specifically for the EOS R series mirrorless cameras. This lens is particularly valued for its large f/1.8 aperture, which excels in low-light conditions and produces beautiful background blur, making it ideal for portraits and creative photography. Its build includes a control ring for direct settings adjustments, enhancing user experience during shooting. The RF50mm lens is optimized with advanced coatings to minimize ghosting and flare, ensuring vibrant image quality.
Overview of the High-Power 420-1600mm Telephoto Zoom Lens
The High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens is priced at $139.99, making it about 36% cheaper than the Canon RF50mm lens. This lens is designed for long-distance photography, allowing users to capture subjects that are far away, such as wildlife or sports scenes. Its capability to zoom from 420mm to a massive 1600mm provides significant photographic flexibility. The lens is compatible with a wide variety of Canon DSLR cameras, making it accessible to a broader audience.
Image Quality Comparison
In terms of image quality, the Canon RF50mm F1.8 STM Lens offers superior performance with its large aperture of f/1.8, which allows for stunning low-light photography and exceptional background blur. This lens is equipped with advanced optical features, including a PMo aspherical lens to suppress aberrations and specialized coatings to minimize flare. In contrast, while the High-Power 420-1600mm lens offers versatility with its zoom capabilities, its maximum aperture of f/8.3 may limit performance in low-light situations compared to the RF50mm.
Compatibility with Camera Systems
The Canon RF50mm F1.8 STM Lens is specifically designed for the EOS R series mirrorless cameras, ensuring perfect integration and optimized performance. It fits models such as the EOS R100, R50, R10, and more. On the other hand, the High-Power 420-1600mm lens boasts compatibility with a wide range of Canon DSLR cameras including the EOS 70D, 80D, 90D, and multiple Rebel series models. This broader compatibility makes the telephoto lens appealing to users with various Canon camera models.
Versatility in Photography Styles
The versatility of the Canon RF50mm F1.8 is remarkable, as it functions well for various photography styles, from portraits to landscapes, thanks to its fixed 50mm focal length. It encourages photographers to explore creative compositions. Conversely, the High-Power 420-1600mm lens shines in specialized scenarios, primarily suited for distant subjects. While both lenses offer unique advantages, the RF50mm provides a more adaptable tool for general photography.
Portability and Usability
The Canon RF50mm F1.8 STM Lens is compact and lightweight, making it an excellent choice for photographers who prioritize portability. Its design encourages users to keep it on the camera for spontaneous shooting opportunities. In contrast, the High-Power 420-1600mm lens is more cumbersome due to its larger size and weight associated with its extensive zoom capabilities. This may limit its practicality for everyday use, especially for those who prefer a more manageable lens for casual photography.
Price and Value for Money
At $219.00, the Canon RF50mm F1.8 STM Lens is a solid investment for those seeking quality and performance, especially in low-light conditions. Meanwhile, the High-Power 420-1600mm lens, priced at $139.99, presents a more budget-friendly option, appealing to those interested in telephoto capabilities without breaking the bank. While the telephoto lens offers significant zoom capabilities, the value derived from the RF50mm lens in terms of optical quality and versatility may justify its higher price for serious photographers.
Which should you buy?
Choosing between the Canon RF50mm F1.8 STM Lens and the High-Power 420-1600mm Telephoto Zoom Lens ultimately depends on your photography needs. If you prioritize image quality, low-light performance, and versatility in composition, the RF50mm is the better choice, despite its higher price. However, if your focus is on capturing distant subjects and you prefer a more affordable option, the High-Power telephoto lens will serve you well. Each lens caters to different photographic styles, so consider what features are most important for your photography endeavors.

