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OM SYSTEM Olympus OM-3 Silver Micro Four Thirds vs Sony Alpha 7R V Full-Frame Mirrorless Camera

Updated August 2026 — Sony Alpha 7R V Full-Frame Mirrorless Camera leads on video and image quality.

The OM SYSTEM Olympus OM-3 offers great value for still photography enthusiasts, while the Sony Alpha 7R V excels in advanced features and image quality for professionals.

Why OM SYSTEM Olympus OM-3 Silver Micro Four Thirds is better

Price

OM-3 is approximately 48% cheaper than Alpha 7R V.

Weather Sealing

OM-3 has IP53 rating for dust and water resistance.

Creative Features

OM-3 offers unique computational photography options.

Why Sony Alpha 7R V Full-Frame Mirrorless Camera is better

Image Quality

Alpha 7R V has a 61.0 MP sensor compared to OM-3's 20 MP.

Autofocus

Alpha 7R V features advanced AI-driven autofocus.

Video Capabilities

Alpha 7R V can shoot 8K video, OM-3 lacks advanced video specs.

Overall score

OM SYSTEM Olympus OM-3 Silver Micro Four Thirds
75
Sony Alpha 7R V Full-Frame Mirrorless Camera
90

Specifications

SpecOM SYSTEM Olympus OM-3 Silver Micro Four ThirdsSony Alpha 7R V Full-Frame Mirrorless Camera
Sensor MP20 MP61 MP
ProcessorTruePic XBIONZ XR
Video ResolutionN/A8K/4K
Weather SealingIP53N/A
Shooting SpeedN/A10 fps

Dimension comparison

OM SYSTEM Olympus OM-3 Silver Micro Four ThirdsSony Alpha 7R V Full-Frame Mirrorless Camera

Overview of the OM SYSTEM Olympus OM-3 and Sony Alpha 7R V

The OM SYSTEM Olympus OM-3 is priced at $1,699.99, making it about 48% cheaper than the Sony Alpha 7R V, which costs $3,298.00. Despite the significant price difference, both cameras cater to photography enthusiasts seeking high-quality performance, but they target different user needs and styles. The Olympus OM-3 is designed for those who appreciate a vintage aesthetic and robust weather-sealing, while the Sony Alpha 7R V offers cutting-edge technology and exceptional image quality for serious professionals.

Design and Build Quality

The OM SYSTEM Olympus OM-3 features a vintage-styled premium metal body, providing not only durability but also an appealing aesthetic for photographers who value classic design. Its IP53 rating ensures it is dustproof, splashproof, and freezeproof, making it an excellent choice for outdoor photography in challenging weather conditions. In contrast, the Sony Alpha 7R V, while not detailed in the design specifications, is known for its modern, sleek design that focuses on functionality and ease of use. Its body is built to accommodate a full-frame sensor, which affects its overall dimensions and weight.

Image Quality and Sensor Performance

The Sony Alpha 7R V excels in image quality, featuring a 61.0 MP full-frame back-illuminated Exmor R CMOS sensor, which is significantly higher than the OM SYSTEM Olympus OM-3's 20 MP stacked BSI Live MOS sensor. This difference in resolution can lead to more detailed images, particularly beneficial for large prints or cropping in post-production. The advanced BIONZ XR engine in the Alpha 7R V boosts processing speed by up to 8x, enhancing overall performance. On the other hand, the OM-3’s computational photography features, such as Live ND and High Res Shot, provide creative options that may appeal to users looking for unique photographic effects.

Autofocus and Shooting Speed

The autofocus capabilities of the Sony Alpha 7R V are impressive, leveraging a next-generation AF system with real-time recognition powered by deep learning AI. This technology allows for precise tracking of subjects, which is crucial for fast-paced shooting scenarios. The OM SYSTEM Olympus OM-3, while not equipped with such advanced technology, still offers reliable autofocus options suitable for a variety of shooting situations. However, its specifications do not match the high-speed performance of the Alpha 7R V, which can shoot up to 10 frames per second with continuous AF/AE tracking.

Video Capabilities

When it comes to video functionality, the Sony Alpha 7R V stands out with its capability to shoot 8K video at 24p/25p and 4K video at 60p. This makes it an excellent choice for filmmakers or content creators looking for high-resolution video output. In comparison, the OM SYSTEM Olympus OM-3 does not provide explicit details on its video capabilities, suggesting that it may cater more to still photography enthusiasts rather than videographers. The omission of advanced video specs indicates a potential limitation for users who prioritize videography alongside photography.

User Experience and Additional Features

The OM SYSTEM Olympus OM-3 offers a variety of creative features that enhance user experience, such as a creative dial for color profile control, monochrome profile control, and art filters. These features allow photographers to experiment and express their artistic vision more freely. The camera is also equipped with a 2.36m-dot OLED electronic viewfinder, providing a clear and detailed display for composing shots. In contrast, the Sony Alpha 7R V focuses on technical advancements, including AI-driven features that assist in capturing stunning images with minimal effort. The camera's sales rank of 19,723 reflects its popularity and trust among users.

Price Comparison

The OM SYSTEM Olympus OM-3 is currently priced at $1,699.99, while the Sony Alpha 7R V is priced at $3,298.00. This represents a price difference of about $1,598.01, making the OM-3 approximately 48% less expensive. For photographers on a budget or those who are just starting out, the Olympus OM-3 provides a compelling option without sacrificing quality. Conversely, the Sony Alpha 7R V's higher price may be justified by its superior specifications and features, appealing to professionals who require the best in imaging technology.

Which should you buy?

Choosing between the OM SYSTEM Olympus OM-3 and the Sony Alpha 7R V ultimately depends on your specific photography needs and budget. If you prioritize a more affordable camera with robust weather sealing and creative features for still photography, the OM-3 is an excellent choice. However, if you're seeking the highest image quality, advanced autofocus technology, and superior video capabilities, the Sony Alpha 7R V is worth the investment. The decision comes down to weighing the importance of cutting-edge technology against the value of creative versatility and cost-effectiveness.