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Offering super-telephoto reach in a lightweight, portable package, the XF 400mm f/4.5 R LM OIS WR Lens from FUJIFILM captures distant subjects like wildlife, sports, and more with ease thanks to powerful autofocus and a bright f/4.5 aperture. With a 600mm full-frame equivalent focal length, this lens achieves massive reach and crisp subject separation in a compact body perfectly suited for all-day handheld use.
Offering super-telephoto reach in a lightweight, portable package, the XF 400mm f/4.5 R LM OIS WR Lens from FUJIFILM captures distant subjects like wildlife, sports, and more with ease thanks to powerful autofocus and a bright f/4.5 aperture. With a 600mm full-frame equivalent focal length, this lens achieves massive reach and crisp subject separation in a compact body perfectly suited for all-day handheld use.
Lens Design
Weighing less than 3 lb and measuring only 9.4" in length, the lens design is optimized for convenient handheld use from the sidelines to mountain trails. 5.5 stops of optical image stabilization aid stability while shooting handheld by compensating for camera shake. In situations where extra stability is required, the tripod collar foot is Arca-type compatible for rapid mounting on tripods and monopods.
A combination of four extra-low dispersion, two super extra-low dispersion elements, and Super EBC coating preserves accurate colors, strong contrast, and sharp detail everywhere from sunny fields to snowy mountain peaks. The 21-element, 14-group optical design provides the clarity needed when shooting with high-resolution X-series sensors, while the rounded, 9-blade diaphragm delivers a beautifully soft bokeh that's further enhanced by the super telephoto compression.
Linear Motor Autofocus
Enhanced by the powerful subject detection algorithms in X-series cameras, the Linear Motor autofocus system delivers fast and accurate performance in near silence. Additionally, the lens features built-in focus presets designed to grant you greater control over your autofocus to capture fast-moving subjects.
Additional Details
Full compatibility with the separately available 1.4x and 2x teleconverters boosts the reach to 560mm and 800mm, respectively, without a loss in image quality.
Weather-resistant construction protects the lens against dust and moisture, enabling worry-free use in inclement conditions when used with a weather-resistant X-series camera body.
UPC: 074101213928
FUJIFILM XF 400mm f/4.5 R LM OIS Specs
Focal Length
400mm (35mm Equivalent: 600mm)
Aperture
Maximum: f/4.5 Minimum: f/22
Lens Mount
FUJIFILM X
Lens Format Coverage
APS-C
Angle of View
4.1°
Minimum Focus Distance
108.3" / 275.1 cm
Magnification
1:6.25 Macro Reproduction Ratio 0.16x Magnification
Optical Design
21 Elements in 14 Groups
Aperture/Iris Blades
9, Rounded
Focus Type
Autofocus
Image Stabilization
Yes
Tripod Mounting
Fixed and Rotating Collar
Filter Size
95 mm (Front)
Dimensions
4.1 x 9.4" / 104.5 x 239.5 mm (Diameter x Length)
Weight
2.74 lb / 1.24 kg
Packaging Info
Package Weight
5.315 lb
Box Dimensions (LxWxH)
13.4 x 7.9 x 6.7"
FUJIFILM XF 400mm f/4.5 R LM OIS Reviews
Sharp, Light, and Fast
By Anthony
Rated 5 out of 5
Date: 2026-10-06
Coming from a third-party super telephoto zoom, it is obvious that a first-party prime is going to blow it out of the water, but it was still a shock. This lens is at least 500g lighter, a stop faster at equivalent length, far, far sharper at any aperture, and with a much higher hit rate due to its faster autofocus. Whether it's worth nearly 3x as much is a personal value question, but for me, the answer is yes. The lens gets out of my way, and I have more fun shooting birds and wildlife given that I can carry this lens all day without it feeling cumbersome and know that I'm going to get better results. I can also reduce my X-H2S's continuous shooting framerate and therefore have fewer shots to weed through given that I know I'll have more images properly in focus. I save space on my card and a headache in post. The only gripe I have with it is that I wish it emulated my third-party lens' tripod collar implementation, which with the turn of a screw could be loosened to shift its orientation or removed entirely. This lens has a foot that can be removed, but only from a mounting point that is blocky and gets in the way and can never be removed from the lens barrel, only shifted elsewhere.
SHARP
By cameron
Rated 5 out of 5
Date: 2026-09-23
So far so good! I have this alongside the 200 F2 and it’s a great companion. It’s half the weight, smaller footprint and just as sharp at the 200. I haven’t given a try with the 1.4TC yet but I imagine it’ll be just as sharp with it. The focus is fast, lens is well balanced, stabilizes very well and is just awesome. Do I wish it was faster aperture? Of course. I would love this in a 2.8 or 3.2! But, it’s a 600mm 4.5 FF equivalent, so I can’t complain too much. It’s a keeper for sure! Pics are unedited jpegs shot with XT4
