Canon EF 75- vs Big Mike's High-Power 420-
Updated July 2026 — Canon EF 75- wins on price and ease of use, Big Mike's High-Power 420- wins on focal length and build.
The Canon EF 75-300mm lens offers ease of use and solid performance, while the High-Power lens excels in zoom capability and affordability. Choose based on your photography needs.
Why Canon EF 75- is better
Ease of Use
Canon lens has autofocus capabilities.
Build Quality
Canon lens has a solid construction.
Brand Reputation
Canon is a well-established brand.
Why Big Mike's High-Power 420- is better
Zoom Range
High-Power lens offers 420-1600mm.
Price
High-Power lens is $139.99.
Compatibility
High-Power lens fits more Canon models.
Overall score
Specifications
| Spec | Canon EF 75- | Big Mike's High-Power 420- |
|---|---|---|
| Max Aperture | f/4-5.6 | f/8.3 |
| Lens Elements | 13 elements | unknown |
| Focus Type | Autofocus | Manual |
| Zoom Type | Telephoto | Telephoto |
| Compatibility | Canon | Wide Canon |
Dimension comparison
Overview of the Lenses
The Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens and the High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens offer distinct capabilities for photographers. The Canon lens is priced at $169.00, while the High-Power lens is slightly cheaper at $139.99, making it about 17% more affordable. Each lens serves different needs, targeting varying photography styles and requirements.
Focal Length and Zoom Capability
The Canon EF 75-300mm lens features a focal length range of 75-300mm, which is suitable for a variety of photography, including portraits and landscapes. In contrast, the High-Power lens boasts an astounding focal length of 420-1600mm, providing extraordinary versatility for long-distance shots. This zoom capability allows for capturing far-off subjects, such as wildlife or sports, that the Canon lens may struggle to reach. The enhanced zoom of the High-Power lens is a significant advantage for photographers looking to explore distant scenes.
Aperture and Light Performance
The Canon lens has a maximum aperture of f/4-5.6, which is adequate for general photography but may limit performance in low-light conditions. The High-Power lens, with a maximum aperture of f/8.3, provides a narrower opening, which may affect its ability to gather light in dim environments. While this may seem like a disadvantage, the High-Power lens compensates with its extended zoom capabilities, making it more suitable for bright outdoor conditions. Photographers should consider their typical shooting environments when choosing between the two.
Lens Construction and Design
The Canon EF 75-300mm lens is constructed with 13 elements in 9 groups, which contributes to its image quality and focus performance. The lens employs a front group rotating extension system driven by a micromotor for focus adjustments. On the other hand, the High-Power lens does not specify details about its construction but emphasizes its compatibility with a wide range of Canon cameras. This level of compatibility ensures that photographers can easily adapt the High-Power lens to their existing equipment, making it a flexible choice.
Focus Adjustment and Ease of Use
The Canon lens utilizes a front group rotating extension system for focus adjustments, which may provide smoother operation for users. In contrast, the High-Power lens is a manual focus lens, which means users must rely on their skill to achieve sharp focus. This distinction can significantly affect the user experience; beginners may find the Canon lens easier to use due to its autofocus capabilities, while more experienced photographers may prefer the manual focus for its precision in certain scenarios.
Price Comparison
The current price of the Canon EF 75-300mm lens is $169.00, while the High-Power lens is available for $139.99. This price difference of approximately $29 means that the High-Power lens offers a more budget-friendly option while providing an extended focal length. However, potential buyers should weigh the price against the features and performance each lens offers to ensure they select the best option for their needs.
Compatibility with Cameras
The Canon EF 75-300mm lens is designed to fit Canon cameras, making it a solid choice for users with Canon systems. The High-Power lens boasts compatibility with a wider array of Canon models, including EOS 70D, 80D, 90D, and various Rebel series cameras. This versatility allows photographers with different Canon models to benefit from the High-Power lens, making it an attractive option for those who may upgrade their camera in the future.
Which should you buy?
Choosing between the Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens and the High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens ultimately depends on your photography needs. If you prioritize ease of use and a well-rounded performance, the Canon lens is a reliable option. However, if you are looking for an exceptional zoom capability and a more budget-friendly price point, the High-Power lens emerges as the superior choice. Assess your shooting style, camera compatibility, and the types of subjects you intend to capture to make the best decision for your photography journey.

