Canon EF 75- vs OM SYSTEM Olympus M.Zuiko Digital 40-
Updated July 2026 — Canon EF 75- leads on focal length and angle of view.
The Canon EF 75-300mm offers a longer focal length and lower price, making it a better choice for budget-conscious photographers. However, the Olympus lens provides faster autofocus and a more portable design.
Why Canon EF 75- is better
Price
Canon is $6.99 cheaper than Olympus.
Focal Length
Canon has a longer reach at 75-300mm.
Versatility
Canon is better for wildlife and sports photography.
Why OM SYSTEM Olympus M.Zuiko Digital 40- is better
Autofocus
Olympus has faster autofocus with High-Speed Imager AF.
Weight
Olympus is designed to be more portable.
Image Magnification
Olympus offers a maximum image magnification of 0.16x.
Overall score
Specifications
| Spec | Canon EF 75- | OM SYSTEM Olympus M.Zuiko Digital 40- |
|---|---|---|
| Max Aperture | f/4-5.6 | f/4-5.6 |
| Lens Elements | 13 elements | not specified |
| Focus System | Micromotor | High-Speed Imager AF |
| Closest Focus | 1.5m | not specified |
| Image Quality | good | good |
Dimension comparison
Overview of the Canon EF 75-300mm f/4-5.6 III
The Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens is priced at $169.00, making it a competitive option for photographers seeking versatility in their lens selection. This lens features a focal length range of 75-300mm with a maximum aperture of f/4-5.6, enabling users to shoot from a distance while maintaining a decent level of light. The diagonal angle of view ranges from 32° 11' to 8° 15', giving it a broad scope for capturing subjects in various settings. With a construction of 13 elements in 9 groups, this lens is designed to provide quality imagery across its zoom range.
Overview of the OM SYSTEM Olympus M.Zuiko Digital 40-150mm F4.0-5.6 R
The OM SYSTEM Olympus M.Zuiko Digital 40-150mm F4.0-5.6 R is priced slightly higher at $175.99, positioning it as a premium choice among telephoto lenses. This lens has a focal length of 40-150mm and also features a maximum aperture of f/4-5.6. It boasts a 3.75x zoom capability, which is ideal for capturing a variety of subjects, from portraits to landscapes. The angle of view spans from 30° to 8.2°, offering a good range for creative shots. Designed for Micro Four Thirds system cameras, its lightweight and portable design makes it a convenient option for on-the-go photographers.
Build Quality and Design
In terms of build quality, the Canon EF 75-300mm lens is robust, designed to withstand the rigors of photography. Its front group rotating extension system with Micromotor allows for smooth focus adjustments, which is essential for capturing fast-moving subjects. The lens weighs approximately 1.5 pounds, making it manageable for extended use.
Conversely, the OM SYSTEM Olympus lens has a portable design that caters to photographers who prioritize lightweight gear. Its construction is also solid, ensuring durability while remaining easy to handle. However, the exact weight is not specified, making it difficult to compare directly with the Canon lens.
Focal Length and Versatility
The focal length of a lens significantly influences its versatility, and both lenses cater to different needs. The Canon EF 75-300mm offers a longer reach with its 75-300mm range, making it particularly suitable for wildlife and sports photography. This added range allows for capturing distant subjects without losing detail.
On the other hand, the Olympus lens has a shorter focal length of 40-150mm, which is more suited for portrait and mid-range photography. While it lacks the extreme reach of the Canon lens, its shorter range can be beneficial for those looking to shoot in tighter spaces or for closer subjects.
Autofocus Performance
Both lenses feature autofocus systems designed to enhance user experience, although their technologies differ. The Canon EF 75-300mm utilizes a front group rotating extension system with Micromotor for focus adjustments, which can be effective but may not be the fastest option available.
In contrast, the OM SYSTEM Olympus lens incorporates a High-Speed Imager AF (MSC), which is designed to deliver quicker and more accurate focusing, particularly useful when capturing fast-moving subjects. This could be a deciding factor for photographers who need swift autofocus performance in dynamic environments.
Image Quality
Image quality is crucial for any lens, and both options aim to provide clear and sharp images. The Canon EF 75-300mm lens's construction of 13 elements in 9 groups suggests a thoughtful design aimed at minimizing aberrations and enhancing image clarity. However, specific details about lens coatings or special glass elements are not provided.
The OM SYSTEM Olympus lens also emphasizes quality, featuring a maximum image magnification of 0.16x, which can be beneficial for close-ups. While both lenses are designed to deliver good image quality, the absence of detailed specifications leaves the comparison somewhat subjective.
Price Comparison
When comparing the prices of these two lenses, the Canon EF 75-300mm is about 17% cheaper than the OM SYSTEM Olympus lens, which retails at $175.99. This price difference may appeal to budget-conscious photographers looking for a versatile telephoto option without compromising on quality. The Canon lens offers a more economical choice while still delivering a substantial focal length and maximum aperture.
Which should you buy?
Choosing between the Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens and the OM SYSTEM Olympus M.Zuiko Digital 40-150mm F4.0-5.6 R depends on your specific photography needs. If you require a longer focal length for distant subjects, the Canon lens is the better option, especially at its lower price of $169.00. However, if you prioritize a lightweight design and faster autofocus performance, the Olympus lens may be worth the extra $6.99. Ultimately, both lenses provide solid performance, but your choice should align with your shooting style and budget.

