SIGMA
SIGMA 100-400mm F5-6.3 DG DN OS Contemporary Fujifilm X camera lens
Compact ultra-telephoto zoom covering 100-400mm for Fujifilm X mirrorless cameras with 150-600mm equivalent reach
- PartASIG750975K1
- Type4
- CompatibilityFujifilm X
- Focus TypeAuto Focus
- Focal Length100-400 millimeters
- Camera Mountfujifilm_x
- Versatile 100-400mm zoom covers 150-600mm equivalent range
- Compact 199.5mm length and 1135g weight for portable ultra-telephoto
- 16 groups with 22 elements including FLD and SLD glass
- Optimised AF algorithm enables fast AF-C on Fujifilm X
- 67mm filter thread accepts standard circular filters
Fujifilm X Ultra-Telephoto Zoom
The Sigma 100-400mm F5-6.3 DG DN OS Contemporary is an ultra-telephoto zoom lens built for Fujifilm X mount mirrorless cameras. It covers a 100-400mm focal range that delivers a 150-600mm equivalent field of view on APS-C sensors. The 12.3 degree angle of view at the long end suits wildlife and sports photographers needing extended reach in a single lens.
Compact Build and Installation
The lens measures 199.5mm in length with a maximum diameter of 86mm and weighs 1,135g, keeping the Fujifilm X system portable. A dedicated AF drive algorithm optimises communication speed for fast, responsive autofocus with AF-C support. The 67mm filter thread accepts standard accessories, and the optical stabiliser helps steady handheld shots at 600mm equivalent.
Compatibility and Pre-Purchase Checks
Verify your camera uses the Fujifilm X mount, as this version is not compatible with other systems. The bundle includes a camera bag and cleaning kit alongside the lens. Buyers who need a wider maximum aperture than F5-6.3 or full-frame coverage should consider different options. Ensure your shooting style benefits from the 150-600mm equivalent range before ordering.
Highlights
- Versatile 100-400mm zoom covers 150-600mm equivalent range
- Compact 199.5mm length and 1135g weight for portable ultra-telephoto
- 16 groups with 22 elements including FLD and SLD glass
- Optimised AF algorithm enables fast AF-C on Fujifilm X
- 67mm filter thread accepts standard circular filters
Specifications
| Brand | SIGMA |
|---|---|
| Model | Sigma 100-400mm F5-6.3 DG DN OS Contemporary |
| Part Number | ASIG750975K1 |
| Part | ASIG750975K1 |
| Type | 4 |
| Compatibility | Fujifilm X |
| Focus Type | Auto Focus |
| Focal Length | 100-400 millimeters |
| Camera Mount | fujifilm_x |
| Angle of View | 12.3 degrees |
| Filter thread (Diameter) | 67 millimeters |
| Autofocus | Auto Focus |
| Dimensions | 9.1 in x 9.1 in x 9.1 in |
| Weight | 2.41 lb |
Questions about this item
How can I confirm the 100-400mm F5-6.3 DG DN OS Contemporary is performing correctly on my Fujifilm X camera after mounting it?
Verify autofocus locks quickly in AF-C mode, check that in-camera aberration correction applies without error messages, and review test shots at 400mm for sharpness across the 12.3-degree angle of view.
What items are included in this bundle and is anything else required to start shooting?
The bundle supplies the lens for Fujifilm X mount, a camera accessory, and a system gadget bag with cleaning kit; no extra components are needed to begin photographing.
Which version of the 100-400mm F5-6.3 DG DN OS Contemporary should I choose for my Fujifilm X system?
Select the Fujifilm X mount version released in 2020, identifiable by part number ASIG750975K1, which provides the optimized AF algorithm and 150-600mm equivalent coverage on APS-C bodies.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



