7Artisans AF 27mm f/2.8 vs Sigma 30mm f/1.4 DC DN Contemporary
The bottom line
These cover different focal lengths — the 7Artisans AF 27mm f/2.8 is 27mm, the Sigma 30mm f/1.4 DC DN Contemporary is 30mm — so they're not really substitutes. Pick by the field of view you actually need: the 7Artisans AF 27mm f/2.8 for standard, the Sigma 30mm f/1.4 DC DN Contemporary for standard.
Choose the 7Artisans AF 27mm f/2.8 if…
- ✓You're on a budget — $149 vs $349 leaves more for other gear.
- ✓You value portability — at 76g (2.7 oz) it's lighter than the 265g (9.3 oz) alternative for travel and all-day carry.
Choose the Sigma 30mm f/1.4 DC DN Contemporary if…
- ✓You want more light and background blur — f/1.4 is faster than f/2.8, better for low light and subject separation.
Where they differ
- ›Aperture: the Sigma 30mm f/1.4 DC DN Contemporary opens to f/1.4 vs the 7Artisans AF 27mm f/2.8's f/2.8 — more light and shallower depth-of-field.
- ›Focal range: 7Artisans AF 27mm f/2.8 is 27mm, Sigma 30mm f/1.4 DC DN Contemporary is 30mm — different framing and reach.
- ›Price: the 7Artisans AF 27mm f/2.8 is $149, $200 under the Sigma 30mm f/1.4 DC DN Contemporary.
- ›Weight: the 7Artisans AF 27mm f/2.8 is 76g (2.7 oz) vs 265g (9.3 oz) — you'll feel the difference handheld.
Frequently asked
Is the 7Artisans AF 27mm f/2.8 or the Sigma 30mm f/1.4 DC DN Contemporary better?
These cover different focal lengths — the 7Artisans AF 27mm f/2.8 is 27mm, the Sigma 30mm f/1.4 DC DN Contemporary is 30mm — so they're not really substitutes. Pick by the field of view you actually need: the 7Artisans AF 27mm f/2.8 for standard, the Sigma 30mm f/1.4 DC DN Contemporary for standard.
Who should choose the 7Artisans AF 27mm f/2.8?
Choose the 7Artisans AF 27mm f/2.8 if you're on a budget — $149 vs $349 leaves more for other gear. Choose it if you value portability — at 76g (2.7 oz) it's lighter than the 265g (9.3 oz) alternative for travel and all-day carry.
Who should choose the Sigma 30mm f/1.4 DC DN Contemporary?
Choose the Sigma 30mm f/1.4 DC DN Contemporary if you want more light and background blur — f/1.4 is faster than f/2.8, better for low light and subject separation.
What is the main difference between the 7Artisans AF 27mm f/2.8 and the Sigma 30mm f/1.4 DC DN Contemporary?
Aperture: the Sigma 30mm f/1.4 DC DN Contemporary opens to f/1.4 vs the 7Artisans AF 27mm f/2.8's f/2.8 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 27mm | 30mm |
| Lens Type | Prime | Prime |
| Optical Elements | 7 | 9 |
| Optical Groups | 6 | 6 |
| Aperture & Iris | ||
| Maximum Aperture | f/2.8 | f/1.4 |
| Minimum Aperture | f/16 | f/16 |
| Aperture Blades | 7 | 9 |
| Rounded Aperture | No | Yes |
| Coverage & Angle | ||
| Format Coverage | APS-C | APS-C |
| Lens Mount | Sony E | Sony E |
| Angle of View | 55° | 51° |
| 35mm Equivalent | 41-41mm | 45-45mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | STM | HLA |
| Focus Limiter | No | No |
| AF/MF Switch | No | Yes |
| Min Focus Distance | 30 cm | 30 cm |
| Max Magnification | 0.12x | 0.1x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | Yes |
| Declickable Aperture | No | Yes |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $149 | $349 |
| Filter Size | 46mm | 52mm |
| Diameter | 53.7mm | 64.8mm |
| Length | 24.2mm | 51.5mm |
| Weight | 76g (2.7 oz) | 265g (9.3 oz) |
| Weather Sealed | No | No |
| Tripod Collar | No | No |
