The Sigma 30mm f/1.4 DC DN is the low-light favorite for APS-C. It frames like a natural 45mm, gathers far more light than any kit zoom, and costs a fraction of first-party f/1.4 primes — which is why it’s been a best-seller for years.
Key specs
What’s a good price?
This item mostly sells near list price, with dips during manufacturer rebates (often Black Friday through the holidays, and spring). A good price is anything at or near its 90-day low on a price tracker such as Keepa or camelcamelcamel. We’ll add it to our price drops list when a meaningful discount appears.
What’s good — and what isn’t
Strengths
- Bright f/1.4 for low light and background blur
- Sharp from wide open in the center
- Inexpensive and widely available on many mounts
- Smooth, quiet AF
Trade-offs
- No stabilization
- Some vignetting and chromatic aberration wide open
- Not designed for full frame
Who it’s for
Sony a6000-series, ZV-E10, Canon R50/R10, Fujifilm X and MFT owners who want one fast everyday prime.
Alternatives
| Alternative | Why consider it |
|---|---|
| Sigma 56mm f/1.4 DC DN | Portrait companion (≈85mm equivalent) |
| Viltrox AF 33mm f/1.4 On our deal list | Similar budget f/1.4 prime, popular on Fujifilm X |
| Sony E 35mm f/1.8 OSS | Stabilized first-party option, f/1.8 |
| Sigma 18-50mm f/2.8 | If you prefer zoom flexibility |
FAQ
Is the Sigma 30mm f/1.4 good for video?
Yes. It’s light enough for gimbals and its stepping motor is quiet; pair it with a body that has IBIS or use a gimbal for handheld.
Does the Sigma 30mm f/1.4 work on Canon RF?
Yes — Sigma offers a licensed RF-mount version for APS-C bodies such as the R50, R10 and R7, where it frames like a 48mm.
Related: Sony E-mount guide · Black Friday lens deals · All lenses