OM SYSTEM Olympus OM-3 Silver Micro Four Thirds vs Sony Alpha a6000 Mirrorless Digital Camera 24.
Updated August 2026 — OM SYSTEM Olympus OM-3 Silver Micro Four Thirds wins on build and features, Sony Alpha a6000 Mirrorless Digital Camera 24. wins on value and autofocus.
The OM SYSTEM Olympus OM-3 excels in build quality and creative features, while the Sony Alpha a6000 offers superior resolution and value for money.
Why OM SYSTEM Olympus OM-3 Silver Micro Four Thirds is better
Build Quality
OM-3 has a premium metal body and weather sealing.
Creative Features
OM-3 offers advanced computational photography tools.
Viewfinder
OM-3 has a higher resolution electronic viewfinder.
Why Sony Alpha a6000 Mirrorless Digital Camera 24. is better
Price
a6000 is significantly cheaper at $882.32.
Image Quality
a6000 has a higher 24.3 MP sensor.
Autofocus
a6000 features a superior hybrid autofocus system.
Overall score
Specifications
| Spec | OM SYSTEM Olympus OM-3 Silver Micro Four Thirds | Sony Alpha a6000 Mirrorless Digital Camera 24. |
|---|---|---|
| Sensor | 20 MP | 24.3 MP |
| ISO Range | 200-25600 | 100-25600 |
| Viewfinder | 2.36M dots | 0.39M dots |
| Continuous Shooting | N/A | 11 FPS |
| Weight | N/A | 344g |
Dimension comparison
Design and Build Quality
The OM SYSTEM Olympus OM-3 boasts a premium metal body with a vintage aesthetic, while the Sony Alpha a6000 offers a more compact and lightweight design. The OM-3's build quality is enhanced by an IP53 rating, making it dustproof, splashproof, and freezeproof, which is ideal for outdoor photography. In contrast, the a6000 is designed for portability, weighing significantly less, but lacks the same level of weather resistance. With a price tag of $1,699.99, the OM-3 reflects its robust construction, whereas the a6000’s price of $882.32 makes it about 48% cheaper, appealing to photographers seeking a budget-friendly option without compromising basic functionality.
Image and Sensor Quality
When it comes to image quality, the OM SYSTEM Olympus OM-3 features a 20 MP Stacked BSI Live MOS sensor, while the Sony Alpha a6000 is equipped with a more advanced 24.3 MP back-illuminated sensor. This gives the a6000 a clear edge in resolution, allowing for finer detail in images. Additionally, the a6000 has an ISO range of 100 to 25,600, expandable to 51,200, which is advantageous in low-light situations. The OM-3, while slightly lower in resolution, still delivers excellent image performance, particularly with its computational photography features. Ultimately, if resolution and low-light performance are top priorities, the a6000’s higher megapixel count and ISO capabilities make it a more compelling choice for $882.32.
Autofocus and Shooting Speed
The autofocus systems of the two cameras differ significantly, with the Sony Alpha a6000 featuring a hybrid autofocus system that includes 179 phase detection points and 25 contrast detection points. This allows for fast and accurate focusing, especially beneficial for action shots. The a6000 can shoot up to 11 frames per second, ensuring that you won’t miss a moment. On the other hand, the OM SYSTEM Olympus OM-3 does not specify its autofocus points but focuses on creative photography features. For fast-paced shooting scenarios, the a6000's capabilities at $882.32 make it a better option, especially considering its sales rank of 32,617, reflecting its popularity among users.
Viewfinder and LCD Display
The OM SYSTEM Olympus OM-3 includes a 2.36 million-dot OLED electronic viewfinder, offering a clear and detailed view of your subject. In contrast, the Sony Alpha a6000 features a 3-inch tilting LCD with a resolution of 921,000 dots. While the a6000’s LCD is functional for live view shooting, the OM-3’s electronic viewfinder may provide a more immersive shooting experience, especially in bright conditions where LCD screens can be hard to see. The difference in viewing technology caters to varying user preferences, with the OM-3 priced at $1,699.99 and the a6000 at $882.32. This difference may sway users who value viewfinder quality over screen size.
Battery Life
Battery performance is crucial for any photographer, and the Sony Alpha a6000 has a commendable battery life, capable of capturing up to 360 shots on a single charge. The OM SYSTEM Olympus OM-3 does not provide specific battery life figures, making it difficult to compare directly. However, for photographers who prioritize longevity during shoots, the a6000's superior battery life at $882.32 is an attractive feature, especially for those who frequently shoot in locations where charging may not be feasible.
Creative Features
The OM SYSTEM Olympus OM-3 shines in its creative capabilities, offering features like Live ND, Live Composite, and focus stacking. These computational photography tools allow users to explore and enhance their creativity in ways the a6000 does not explicitly match. On the other hand, the Sony Alpha a6000 is built for performance and ease of use, focusing on delivering high-quality images quickly. For photographers who are more technically inclined and wish to experiment with different photographic styles, the OM-3 at $1,699.99 may provide more avenues for creativity.
Price and Value
In terms of price, the OM SYSTEM Olympus OM-3 retails at $1,699.99, while the Sony Alpha a6000 is significantly less expensive at $882.32, making it about 48% cheaper. This price difference may lead many to consider the a6000 for its value, especially since it still offers a high-quality imaging experience. The OM-3, however, targets a niche audience looking for durability and advanced creative features. For budget-conscious buyers or those entering the world of mirrorless cameras, the a6000 proves to be a strong contender, while the OM-3 appeals to serious photographers seeking premium features.
Which should you buy?
Ultimately, the decision between the OM SYSTEM Olympus OM-3 and the Sony Alpha a6000 comes down to your specific needs as a photographer. If you prioritize rugged design, creative features, and are willing to invest in premium quality, the OM-3 is a worthy choice at $1,699.99. Conversely, if you seek a budget-friendly camera that excels in resolution, autofocus, and battery life, the a6000, priced at $882.32, is an excellent option. Each camera brings unique strengths to the table, ensuring that both can satisfy different types of photography enthusiasts.

