Sigma 18-50mm f/2.8 DC DN (Sony E, APS-C)
The Sigma 18-50mm f/2.8 is the tiny constant-aperture APS-C zoom, just 290g with 55mm filters, and it's also sold in X, RF, and L mounts. As a beginner-tier pick it's a compact, practical everyday standard zoom. It's ideal for crop-sensor kits that prize size and a bright f/2.8 throughout. Note it has no OIS, so for stabilization-dependent video you'll want to pair it with an IBIS body.
Scores
BreakdownHideOverall63±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 | 18 50mmSourced | Sourced |
| max aperture | f/2.8Sourced | Sourced |
| filter thread (mm) | 55Sourced | Sourced |
| weight (g) | 290Sourced | Sourced |
6/6 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- The tiny f/2.8 APS-C zoom — 290g, 55mm filters
- Also sold in X/RF/L mounts
Who should skip this
- Stabilization-dependent video (no OIS — pair with IBIS bodies)
Where to buy
List price $599
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
Prices last checked Jun 13, 2026 — retailer prices change often, so click through for the current price.
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Ecosystem
Compatibility
Built around 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 Sony FE 90mm F2.8 Macro G OSS (SEL90M28G) is the natural next step up in lenses. See it →