Canon EF vs OM SYSTEM Olympus M.Zuiko Digital 40-
Updated July 2026 — OM SYSTEM Olympus M.Zuiko Digital 40- leads on focal length and weight.
The Canon EF 50mm f/1.8 STM Lens offers superior low-light performance and value, making it the better choice for portrait photography. The OM SYSTEM Olympus lens provides versatility with its zoom range but lacks the same low-light capabilities.
Why Canon EF is better
Low-Light Performance
Canon lens has a maximum aperture of f/1.8.
Price
Canon lens is $20 cheaper.
Autofocus
Canon lens features near-silent STM autofocus.
Why OM SYSTEM Olympus M.Zuiko Digital 40- is better
Zoom Range
OM SYSTEM lens offers a 40-150mm zoom.
Versatility
OM SYSTEM lens is suitable for various subjects.
Weight
OM SYSTEM lens is designed for portability.
Overall score
Specifications
| Spec | Canon EF | OM SYSTEM Olympus M.Zuiko Digital 40- |
|---|---|---|
| Brand | Canon | OM SYSTEM |
| Price | $155.99 | $175.99 |
| Max Aperture | f/1.8 | f/4-5.6 |
| Focal Length | 50mm | 40-150mm |
| Autofocus | STM | MSC |
| Weight | 130g | 200g |
Dimension comparison
Overview of the Canon EF 50mm f/1.8 STM Lens
The Canon EF 50mm f/1.8 STM Lens is priced at $155.99, making it an attractive option for photographers seeking a high-quality prime lens. This lens is well-regarded for its versatility, particularly in portrait and nighttime photography due to its bright f/1.8 maximum aperture. The lens features a minimum focusing distance of 1.15 ft. (0.35m) and is designed to provide excellent image quality with minimal flare and ghosting, thanks to its Super Spectra coating. Its compact size and effective focal length of 80mm on APS-C cameras make it a popular choice for both beginners and experienced photographers alike.
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 lens retails for $175.99, which is about 13% more expensive than the Canon lens. This lens offers a versatile zoom range of 40-150mm, making it suitable for a variety of shooting scenarios, including landscapes and wildlife photography. With a maximum aperture of f/4-5.6, it provides decent performance in well-lit environments. The lens also features a high-speed imager autofocus (MSC) system that enhances focusing speed and accuracy, though it may not match the low-light capabilities of the Canon lens due to its narrower maximum aperture.
Image Quality and Performance
When it comes to image quality, the Canon EF 50mm f/1.8 STM Lens excels in low-light conditions and offers stunning depth of field control with its wide aperture. This makes it an excellent choice for portrait photography, allowing for beautifully blurred backgrounds. In contrast, the OM SYSTEM Olympus lens provides a more versatile zoom range but has a maximum aperture that is not as conducive to low-light shooting. While the Olympus lens offers decent image quality, it may struggle slightly in challenging lighting situations when compared to the Canon lens's superior aperture capabilities.
Autofocus Capabilities
The Canon EF 50mm f/1.8 STM Lens features a stepping motor (STM) that delivers near-silent autofocus, making it particularly suitable for video recording and still photography where quiet operation is essential. Its full-time manual focus override adds versatility for photographers who prefer to take manual control. On the other hand, the OM SYSTEM Olympus lens also boasts a high-speed autofocus system, but it may not be as silent as the Canon’s STM. While both lenses offer good autofocus performance, the Canon lens has an edge in terms of quiet operation, which is an important consideration for videographers.
Focal Length Versatility
The Canon lens has a fixed focal length of 50mm, which is ideal for portraits and general photography. This fixed nature means that photographers need to physically move closer or further away from their subjects to frame their shots. In contrast, the OM SYSTEM Olympus lens offers a zoom range of 40-150mm, providing greater flexibility in framing without needing to change lenses or positions. This makes it a more versatile option for varied shooting scenarios, allowing photographers to capture a wider range of subjects from landscapes to wildlife.
Portability and Design
The Canon EF 50mm f/1.8 STM Lens is compact and lightweight, making it easy to carry around for everyday shooting. Its simple design makes it a favorite among photographers who appreciate a straightforward, no-fuss lens. On the other hand, the OM SYSTEM Olympus lens is also designed to be portable, but at a slightly larger size due to its zoom mechanism. While both lenses are travel-friendly, the Canon lens excels in ultra-portability, which can be a crucial factor for photographers on the go.
Pricing and Value
With a price of $155.99, the Canon EF 50mm f/1.8 STM Lens is a more budget-friendly option compared to the OM SYSTEM Olympus lens, which costs $175.99. This price difference of $20 signifies that the Canon lens is about 11% cheaper, making it a more attractive option for those who are cost-conscious while still seeking quality. When considering the features and performance of both lenses, the Canon lens offers solid value for its price, especially for those focused on portrait and low-light photography.
Which should you buy?
When deciding between the Canon EF 50mm f/1.8 STM Lens and the OM SYSTEM Olympus M.Zuiko Digital 40-150mm F4.0-5.6 R lens, your choice ultimately depends on your specific photography needs. If you are looking for a versatile lens with excellent low-light performance and a great price point, the Canon lens is the clear winner. However, if you need a more flexible zoom range for various subjects and don’t mind spending a bit more, the OM SYSTEM Olympus lens might be the better fit. Overall, for most photographers, especially those focused on portraits and low-light scenarios, the Canon lens offers superior value and performance.

