Sigma 15mm f/1.4 DC (APS-C, E/X/RF-S)
The Sigma 15mm f/1.4 DC is an ultra-wide fast prime for APS-C, a rare combination at a feathery 220g, also offered in X and RF-S mounts beyond Sony E. It's one of the strongest picks in this group, fitting an astro- and interior-capable lens. It's for crop-sensor shooters wanting bright ultra-wide framing; it won't cover full-frame bodies, so it's strictly an APS-C tool.
Scores
BreakdownHideOverall74±3Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.
Scores
BreakdownHideCaliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.
The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.
How each score is computed: our scoring methodology.
Specifications
| Spec | Value | Verification |
|---|---|---|
| mount | Sony ESourced | Sourced |
| coverage | APS-CSourced | Sourced |
| focal length | 15mmSourced | Sourced |
| max aperture | f/1.4Sourced | Sourced |
| weight (g) | 220Sourced | Sourced |
5/5 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- Ultra-wide fast prime for APS-C (also sold in X and RF-S mounts)
Who should skip this
- Full-frame bodies
Where to buy
List price $579
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
Prices last checked Jun 15, 2026 — retailer prices change often, so click through for the current price.
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Ecosystem
Compatibility
Built around Canon RF mount, Fujifilm X mount, Sony E-mount. Make sure the rest of your build uses the same platform before you buy — mismatched sockets, mounts or standards are the most common return reason. Check it in the builder →
Upgrade path
Outgrow it and the Tamron 11-20mm f/2.8 Di III-A RXD (APS-C) is the natural next step up in lenses. See it →