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Nikon Z5 II | Full-Frame mirrorless Stills/Video vs OM SYSTEM Olympus OM-3 Silver Micro Four Thirds

Updated August 2026 — Nikon Z5 II | Full-Frame mirrorless Stills/Video wins on autofocus and video, OM SYSTEM Olympus OM-3 Silver Micro Four Thirds wins on build and creativity.

The Nikon Z5 II offers superior image quality, autofocus, and video capabilities at a lower price, making it the better choice overall.

Why Nikon Z5 II | Full-Frame mirrorless Stills/Video is better

Price

Nikon Z5 II is $103 cheaper

Sensor Size

Nikon has a full-frame sensor vs OM-3's Micro Four Thirds

Video Quality

Nikon supports 4K UHD video recording

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

Build Quality

OM-3 has a rugged, weather-sealed design

Creative Features

OM-3 offers extensive in-camera creative options

Portability

OM-3 is more compact and travel-friendly

Overall score

Nikon Z5 II | Full-Frame mirrorless Stills/Video
88
OM SYSTEM Olympus OM-3 Silver Micro Four Thirds
82

Specifications

SpecNikon Z5 II | Full-Frame mirrorless Stills/VideoOM SYSTEM Olympus OM-3 Silver Micro Four Thirds
Sensor24.5MP Full-Frame20MP Micro Four Thirds
ISO Range100-64000Not specified
Video Resolution4K UHDNot specified
ViewfinderOLED EVF2.36m-Dot OLED
Weight675g600g

Dimension comparison

Nikon Z5 II | Full-Frame mirrorless Stills/VideoOM SYSTEM Olympus OM-3 Silver Micro Four Thirds

Overview of the Nikon Z5 II and OM SYSTEM Olympus OM-3

The Nikon Z5 II is priced at $1,596.95, while the OM SYSTEM Olympus OM-3 is available for $1,699.99, making the Nikon about 6% cheaper. Both cameras cater to photographers and videographers, but they come with unique features and capabilities that can influence your buying decision. The Z5 II is known for its full-frame sensor and advanced autofocus, while the OM-3 boasts a compact design and weather-sealed construction, ideal for travel.

Build Quality and Design

The Nikon Z5 II features an intuitive design with a 3.2-inch vari-angle touchscreen LCD and a high-resolution OLED electronic viewfinder. In contrast, the OM SYSTEM Olympus OM-3 showcases a vintage-styled, premium metal body that offers a classic aesthetic and durability. The OM-3 is designed with an IP53 rating, making it dustproof, splashproof, and freezeproof, which is particularly beneficial for outdoor photographers. Both cameras are built to last, but the Olympus excels in ruggedness and portability, making it a great choice for travel enthusiasts.

Sensor and Image Quality

When it comes to image quality, the Nikon Z5 II sports a 24.5MP full-frame CMOS sensor, providing exceptional detail and vibrant colors in both photos and videos. The OM-3, on the other hand, is equipped with a 20MP stacked BSI Live MOS sensor that also delivers impressive image quality but in a Micro Four Thirds format. This difference in sensor size means that the Z5 II generally performs better in low-light conditions, offering an ISO range of 100-64000, expandable to ISO 204800. While the OM-3 can capture great images, the full-frame sensor of the Nikon offers superior performance in challenging lighting.

Autofocus and Performance

The Nikon Z5 II features a fast hybrid phase-detection and contrast autofocus system with 273 focus points, allowing it to quickly and accurately track subjects. This makes it an excellent choice for action photography and videography. The OM-3, while equipped with advanced computational photography features, does not provide the same level of autofocus performance as the Z5 II. For those prioritizing speed and accuracy in autofocus, the Nikon Z5 II is the clear winner.

Video Capabilities

In terms of video recording, the Nikon Z5 II excels with 4K UHD video recording at various frame rates, making it a strong candidate for serious videographers. The camera allows for slow-motion capture at 120p, enhancing creative possibilities. The OM-3 also offers S&Q Mode for slow motion and quick motion video, but its video capabilities are not as robust as those found in the Z5 II. For anyone heavily invested in video production, the Nikon's superior video features are a substantial advantage.

Creative Features and Controls

The OM SYSTEM Olympus OM-3 shines with its creative dial, which allows for color profile control, monochrome profile control, and various art filters. This provides users with extensive creative flexibility and the ability to experiment with different photography styles. The Nikon Z5 II also offers creative options through custom Picture Controls and curated presets in Nikon's Imaging Cloud. Both cameras cater to creative users, but the OM-3 gives a slight edge regarding in-camera creative options.

Price Consideration

The Nikon Z5 II is priced at $1,596.95, while the OM SYSTEM Olympus OM-3 comes in at $1,699.99. This makes the Nikon about $103 cheaper, or roughly 6% less expensive. For photographers on a budget who are still looking for high-quality performance, the Z5 II presents a more attractive option without sacrificing essential features. While the OM-3 offers unique advantages, such as its weather-sealed design, the price difference may lead some to favor the Nikon.

Which should you buy?

Ultimately, the choice between the Nikon Z5 II and OM SYSTEM Olympus OM-3 depends on your specific needs and preferences. If you prioritize full-frame image quality, superior autofocus, and video capabilities, the Nikon Z5 II is the better option, especially given its lower price. However, if you're looking for a compact, rugged camera with excellent creative features and don't mind the smaller sensor, the OM-3 could be the right fit for you. Both cameras cater to different types of photographers, so consider what features matter most to you before making a decision.