Om System 100-400: A Comprehensive Review
Are you in the market for a versatile and powerful telephoto lens? Look no further than the Om System 100-400mm f/5.6-6.3 MC R LM WR. This lens has been making waves in the photography community for its exceptional performance and build quality. In this article, we’ll delve into the various aspects of the Om System 100-400, providing you with a detailed and unbiased review.
Design and Build Quality
The Om System 100-400 is a sleek and modern lens that boasts a robust build. It features a magnesium alloy body, which not only adds to its durability but also contributes to its lightweight design. The lens measures approximately 7.1 inches in length and weighs around 2.6 pounds, making it a breeze to carry around for extended periods.
One of the standout features of the Om System 100-400 is its weather-sealed construction. This means that the lens is protected against dust and moisture, allowing you to shoot in challenging environments without worrying about damage. The lens also features a fluorine coating on the front element, which helps to repel water and oil, making it easier to clean.
Optical Performance
When it comes to optical performance, the Om System 100-400 does not disappoint. It offers a versatile focal length range of 100-400mm, making it an excellent choice for a variety of photography genres, including wildlife, sports, and landscape photography.
The lens features 17 elements in 12 groups, including one Super ED (Extra-low Dispersion) element and one ED (Extra-low Dispersion) element, which help to minimize chromatic aberration and improve overall image quality. The lens also employs a Nano Coating, which reduces ghosting and flaring, ensuring that your images remain sharp and clear even in challenging lighting conditions.
One of the most impressive aspects of the Om System 100-400 is its autofocus performance. The lens utilizes a Linear Motor, which provides fast and quiet autofocus operation, making it an excellent choice for capturing fast-moving subjects. The lens also features a manual focus override, allowing you to fine-tune your focus when needed.

Features and Controls
The Om System 100-400 is packed with features that make it a versatile and user-friendly lens. Here are some of the key features:
- Image Stabilization: The lens features a 5-axis image stabilization system, which helps to reduce camera shake and improve image quality, especially when shooting at longer focal lengths.
- Focus Limiter: The lens features a focus limiter switch, which allows you to limit the focusing range to either the full range or the close-up range, improving autofocus speed and accuracy.
- Customizable Function Button: The lens features a customizable function button, which allows you to assign a specific function to the button, such as ISO, exposure compensation, or AF mode.
The lens also features a comfortable and intuitive control layout, with easily accessible switches and buttons for adjusting focus, aperture, and other settings.
Compatibility and Mounts
The Om System 100-400 is available in two mounts: Canon EF and Sony E. This makes it a versatile choice for photographers who own cameras from both brands. The lens is also compatible with third-party teleconverters, which can further extend the focal length range.
When used with a compatible camera body, the lens provides excellent image quality and performance. The lens is also compatible with the camera’s autofocus system, ensuring that you can take full advantage of the lens’s autofocus capabilities.
Conclusion
In conclusion, the Om System 100-400mm f/5.6-6.3 MC R LM WR is a highly capable and versatile telephoto lens that offers exceptional performance and build quality. Its versatile focal length range, impressive optical performance, and user-friendly features make it an excellent choice for a wide range of photography genres. Whether you’re a professional photographer or an enthusiast, the Om System 100-400 is sure to exceed your expectations.
Feature | Om System 100-400 |
---|---|
Focal Length | 100-400mm |
Maximum Aperture | f/5.6-6.3 |
Minimum Ap
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