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Sigma

100-400mm F5-6.3 DG DN OS Contemporary

L-Mount Alliance member Full Frame Zoom Autofocus Telephoto
Reviewed on 2026-10-21

Some specifications remain unconfirmed. See the sources below before making a purchase decision.

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Specifications

MountL-Mount
FormatFull Frame
Lens typeZoom
Focus typeAutofocus
Focal length100-400mm
Maximum aperturef/5-6.3
Minimum aperturef/22-29
Weight1.14kg
Filter thread67mm
Minimum focus distance1.12m
Maximum magnification0.244×
Optical stabilizationYes
Weather sealedAwaiting confirmation
L-Mount release year2020
L-Mount Alliance memberYes

Release year means the first availability of the L-Mount version, rather than the original design or another mount. Future availability is described in the notes.

Notes

Maximum magnification is 1:4.1 (approximately 0.244x) at 400mm; minimum focusing distance is 1.12m at 100mm and 1.60m at 400mm. Sigma documents sealing at the mount; full-barrel protection has not been confirmed. Minimum aperture varies from F22 at 100mm to F29 at 400mm.

Data sources

Specifications are compiled from the sources above and may contain errors or become outdated. Always confirm critical specs with the manufacturer before purchase. See About & Disclaimer.

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