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Long Reach Without a Heavy Kit
The XF 400mm F4.5 pairs 609mm-equivalent reach with a comparatively manageable 1,245g design. Its F4.5 aperture, 5.5-stop optical stabilization, and included tripod collar foot make it a purposeful option for photographers working with distant subjects.
- Focal Length 400mm609mm full-frame equivalent
- Maximum Aperture F4.5
- Lens Mount Fuji X
- Filter Size 95mm

Product Highlights
- 400mm super-telephoto prime for the Fujifilm X system
- 609mm full-frame-equivalent focal length
- Bright F4.5 maximum aperture
- Up to 5.5 stops of optical image stabilization
- 21 elements in 14 groups, including 4 ED and 2 Super ED elements
- 2.75m minimum focus distance with 0.16x maximum magnification
- Approx. 1,245g excluding cap and hood
Product Information
The Fujifilm XF 400mm F4.5 R LM OIS WR is a super-telephoto prime for the Fujifilm X system. Its 400mm focal length delivers a 609mm full-frame-equivalent angle of view, while the F4.5 maximum aperture supports work with distant subjects in available light.
Reach for distant subjects
With an angle of view of 4.1°, this lens is built for tightly framing faraway action and detail. The optical design uses 21 elements in 14 groups, including four ED and two Super ED elements.
Handheld flexibility
Optical image stabilization provides up to 5.5 stops of compensation. At approximately 1,245g excluding the cap and hood, the lens is designed to keep a 400mm prime manageable for field work.
Close-up capability and practical controls
The lens focuses as close as 2.75m from the focal plane and reaches 0.16x maximum magnification. It accepts 95mm filters and includes a tripod collar foot for supported shooting setups.
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FLCP-95 Front Lens Cap
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RLCP-001 Rear Lens Cap
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Lens Hood
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Lens Pouch
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Tripod Collar Foot
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Shoulder Strap
| Optics | |
|---|---|
| Lens Configuration | 21 elements in 14 groups (includes 4 ED and 2 Super ED elements) |
| Focal Length | 400mm (609mm 35mm-format equivalent) |
| Angle of View | 4.1° |
| Maximum Aperture | F4.5 |
| Minimum Aperture | F22 |
| Focus and Aperture | |
|---|---|
| Aperture Blades | 9 (rounded diaphragm opening) |
| Aperture Control | 1/3 EV (15 stops) |
| Minimum Focus Distance | 2.75m (measured from focal plane) |
| Maximum Magnification | 0.16x |
| Physical | |
|---|---|
| Dimensions | Approx. 104.5 × 239.5mm (diameter × length; distance from camera lens mount flange) |
| Weight | Approx. 1,245g (excluding cap and hood) |
| Filter Size | 95mm |







