Fujifilm XF 400mm F4.5 R LM OIS WR Lens

Professional Super-Telephoto Prime Lens

The Fujifilm XF 400mm F4.5 R LM OIS WR is a high-performance super-telephoto prime lens designed for Fujifilm X-mount APS-C mirrorless cameras. With a 400mm focal length, it provides an approximately 609mm equivalent field of view in 35mm format, making it an excellent choice for wildlife, birds, sports, motorsports, aviation, outdoor events, and distant subjects.

Its bright f/4.5 aperture, up to 5.5 stops of Optical Image Stabilization, fast linear-motor autofocus, weather-resistant construction, and premium Fujinon optical design make it a powerful lens for photographers who need exceptional reach, sharpness, and reliable handheld performance.

400mm Focal Length with 609mm Equivalent Reach

On Fujifilm X-mount APS-C cameras, the 400mm focal length delivers an approximately 609mm equivalent field of view in 35mm format. This provides the strong reach needed to photograph distant wildlife, birds in flight, athletes, vehicles, aircraft, and other subjects that cannot be approached closely.

The lens offers a narrow 4.1-degree angle of view, helping photographers isolate subjects and fill the frame with distant action. Its super-telephoto perspective is ideal for wildlife, sports, nature, documentary, and outdoor photography.

Bright f/4.5 Maximum Aperture

The f/4.5 maximum aperture allows the lens to gather ample light for a super-telephoto focal length. This supports faster shutter speeds, improved exposure control, and dependable performance in early morning, evening, overcast, forest, and indoor sports environments.

The lens features a nine-blade rounded diaphragm, which helps produce smooth, natural-looking out-of-focus areas and attractive background rendering. Its aperture range extends from f/4.5 to f/22, giving photographers flexibility for different lighting conditions and depth-of-field preferences.

Up to 5.5 Stops of Image Stabilization

The built-in Optical Image Stabilization system provides up to 5.5 stops of shake correction. This helps support sharper handheld images when shooting at long focal lengths, in low light, or during fast-moving outdoor situations.

Optical stabilization is especially useful for wildlife and sports photography, where photographers often work handheld and need to react quickly to changing subjects. It can also help reduce reliance on a tripod or monopod in suitable conditions.

High-Resolution Fujinon Optical Design

The XF 400mm F4.5 R LM OIS WR uses a sophisticated optical construction with 21 elements in 14 groups. It includes four extra-low-dispersion elements and two Super ED elements, designed to reduce chromatic aberration and maintain high image clarity across the frame.

This optical design is intended to deliver sharp, detailed images even at the lens’s long 400mm focal length. It is well suited to high-resolution Fujifilm X-mount cameras and demanding wildlife, sports, and outdoor photography applications.

Fast Linear Motor Autofocus

The lens uses a high-speed linear motor autofocus system for fast, accurate, and quiet focusing performance. This makes it suitable for tracking birds in flight, fast athletes, vehicles, animals, and other unpredictable subjects.

Internal focusing helps maintain the lens’s overall length during focusing, supporting smoother handling and balanced operation. The lens also includes focus preset and focus limiter functions, giving photographers greater control when working with fast-moving or distant subjects.

Teleconverter Compatibility

The Fujifilm XF 400mm F4.5 R LM OIS WR is compatible with Fujifilm’s 1.4x and 2.0x teleconverters. When used with a 1.4x teleconverter, the lens provides an approximately 852mm equivalent field of view, while the 2.0x teleconverter extends the reach to approximately 1219mm equivalent.

This makes the lens a flexible option for photographers who need additional focal length for distant wildlife, aviation, motorsports, and specialised outdoor photography. Autofocus performance and maximum aperture may vary depending on the teleconverter and camera body used.

Weather-Resistant Professional Construction

The lens features 20 sealed points for dust- and moisture-resistant performance. This makes it suitable for outdoor photography in challenging environments, including forests, coastal areas, sporting venues, and travel locations.

It is designed to operate in cold conditions down to approximately -10°C, making it a dependable choice for wildlife photographers and outdoor creators working in varied weather. As with all weather-resistant equipment, care should still be taken in heavy rain, dust, or extreme conditions.

Compact Super-Telephoto Design

The Fujifilm XF 400mm F4.5 R LM OIS WR measures approximately 104.5 mm in diameter and 239.5 mm in length, with an approximate weight of 1,245 g. Its relatively lightweight design for a 400mm super-telephoto lens helps make handheld shooting, travel, and extended outdoor sessions more manageable.

The lens accepts 95mm filters and includes a dedicated tripod collar for stable mounting on a tripod or monopod. Its professional construction provides a secure, balanced feel on compatible Fujifilm X-mount camera bodies.

Ideal for Wildlife and Sports Photography

The Fujifilm XF 400mm F4.5 R LM OIS WR is an excellent choice for photographers who need long reach, fast autofocus, and dependable image stabilization for distant subjects. It is particularly well suited to wildlife, bird photography, sports, motorsports, aviation, outdoor events, nature photography, and documentary work.

Its 609mm-equivalent reach, teleconverter compatibility, weather-resistant build, and compact super-telephoto design make it a practical option for photographers working in demanding outdoor environments.

Why Choose the Fujifilm XF 400mm F4.5 R LM OIS WR?

The Fujifilm XF 400mm F4.5 R LM OIS WR combines a 400mm focal length, 609mm equivalent field of view, f/4.5 to f/22 aperture range, nine-blade rounded diaphragm, up to 5.5 stops of Optical Image Stabilization, high-resolution Fujinon optics with four ED and two Super ED elements, fast linear-motor autofocus, internal focusing, focus preset and limiter functions, 1.4x and 2.0x teleconverter compatibility, 20 weather-resistant seals, 95mm filter compatibility, tripod collar, and lightweight 1,245 g construction. It is a professional Fujifilm X-mount super-telephoto prime lens for capturing sharp, detailed images of distant wildlife, sports, aviation, and outdoor subjects.