Canon EF vs Canon RF75-
Updated July 2026 — Canon EF wins on price and low-light, Canon RF75- wins on zoom range and weight.
The Canon EF 50mm f/1.8 STM Lens is a budget-friendly option ideal for low-light photography, while the Canon RF75-300mm offers versatility with its zoom capabilities. Choose based on your specific needs.
Why Canon EF is better
Price
Canon EF 50mm is significantly cheaper.
Low-light
Better performance in low-light conditions.
Portability
More compact and lightweight for everyday use.
Why Canon RF75- is better
Versatility
Offers a wide zoom range for various photography styles.
Eye Detection
Advanced autofocus features for moving subjects.
Accessories
Includes useful accessories like a UV filter and cleaning kit.
Overall score
Specifications
| Spec | Canon EF | Canon RF75- |
|---|---|---|
| Focal Length | 50mm | 75-300mm |
| Max Aperture | f/1.8 | f/4-5.6 |
| Autofocus | STM | Servo AF |
| Minimum Focus | 1.15 ft | Not specified |
| Compatibility | EF Mount | RF Mount |
Dimension comparison
Overview of the Canon EF 50mm f/1.8 STM Lens
The Canon EF 50mm f/1.8 STM Lens is a compact and versatile prime lens designed for everyday shooting. Priced at $155.99, it offers excellent value for photographers looking for a reliable tool for portraits and low-light situations. The bright f/1.8 maximum aperture allows for impressive control over depth of field, making it easier to isolate subjects against blurred backgrounds. With features such as a minimum focusing distance of 1.15 ft. and silent autofocus, this lens is ideal for both photography and videography.
Overview of the Canon RF75-300mm F4-5.6 Zoom Lens
In contrast, the Canon RF75-300mm F4-5.6 Zoom Lens is priced at $239.00 and offers a versatile zoom range that can dramatically change the feel of any photograph. This lens is designed for use with Canon EOS R series cameras and is noted for its compact and lightweight build, making it easy to carry around. With its impressive focal length of up to 300mm, it excels in wildlife, sports, and other scenarios where distance is crucial. Its ability to achieve eye detection at long ranges further enhances its usability for capturing moving subjects.
Image Quality and Performance
When it comes to image quality, the Canon EF 50mm f/1.8 STM Lens is designed for sharpness and clarity. The Super Spectra coating helps minimize flare and ghosting, ensuring great contrast and color accuracy in challenging lighting conditions. This lens is particularly beneficial for creating beautiful portraits with a soft background. On the other hand, the Canon RF75-300mm F4-5.6 Zoom Lens provides flexibility through its zoom capabilities, though it may not match the optical quality of a prime lens at its maximum aperture. Users will find that the 300mm reach allows for creative compositions from a distance, albeit with a potential trade-off in sharpness compared to prime lenses.
Autofocus and Usability
The Canon EF 50mm f/1.8 STM Lens features a stepping motor (STM) that provides near-silent and continuous autofocus, making it an excellent choice for both stills and video. This autofocus system is especially beneficial for capturing candid moments without drawing attention. Conversely, the Canon RF75-300mm F4-5.6 Zoom Lens uses Servo AF technology to enable eye detection and smooth focusing, even at its maximum zoom. This feature is particularly advantageous for capturing moving subjects, enhancing the lens's usability in dynamic situations like sports or wildlife photography.
Build Quality and Portability
In terms of build quality, the Canon EF 50mm f/1.8 STM Lens is lightweight and compact, making it easy to carry for long periods. Its straightforward design lends itself to being a go-to lens for everyday use. The Canon RF75-300mm F4-5.6 Zoom Lens also emphasizes portability, with a design comparable to the weight of a 500ml water bottle. This lightweight construction allows photographers to have a powerful zoom lens on hand without the bulk typically associated with similar products.
Accessories and Additional Features
The Canon RF75-300mm F4-5.6 Zoom Lens comes with additional accessories, including a UV filter, lens cap keeper, and a cleaning kit consisting of a blower, lens pen, brush, and case. These extras enhance the overall value of the purchase, particularly for new users who may require these essential items. In contrast, the Canon EF 50mm f/1.8 STM Lens does not include accessories, which may lead some photographers to consider additional costs when investing in other necessary items.
Price Comparison
The Canon EF 50mm f/1.8 STM Lens is priced at $155.99, making it about 35% cheaper than the Canon RF75-300mm F4-5.6 Zoom Lens, which retails for $239.00. This significant price difference is an important consideration for photographers on a budget or those looking to invest in a reliable prime lens without breaking the bank. However, the added versatility and zoom capabilities of the RF75-300mm may justify the higher price for users who require a more flexible lens for various shooting scenarios.
Which should you buy?
Choosing between the Canon EF 50mm f/1.8 STM Lens and the Canon RF75-300mm F4-5.6 Zoom Lens ultimately depends on your photographic needs. If you prioritize a lightweight, budget-friendly option that excels in low-light conditions and portrait photography, the Canon EF 50mm f/1.8 STM Lens is a solid choice. However, if you require versatility with a broader focal range and features like eye detection for moving subjects, the Canon RF75-300mm F4-5.6 Zoom Lens may be worth the higher investment. Consider your shooting style and subjects to make the best decision for your photography journey.

