Sigma 30mm f/1.4 DC DN Contemporary vs TTArtisan AF 23mm f/1.8
The bottom line
These cover different focal lengths — the Sigma 30mm f/1.4 DC DN Contemporary is 30mm, the TTArtisan AF 23mm f/1.8 is 23mm — so they're not really substitutes. Pick by the field of view you actually need: the Sigma 30mm f/1.4 DC DN Contemporary for standard, the TTArtisan AF 23mm f/1.8 for standard.
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/1.8, better for low light and subject separation.
- ✓You need more reach — it goes to 30mm vs 23mm for distant subjects, wildlife and sport.
Choose the TTArtisan AF 23mm f/1.8 if…
- ✓You're on a budget — $149 vs $349 leaves more for other gear.
- ✓You value portability — at 128g (4.5 oz) it's lighter than the 265g (9.3 oz) alternative for travel and all-day carry.
- ✓You like close-focus work — 0.14x magnification vs 0.1x.
Where they differ
- ›Aperture: the Sigma 30mm f/1.4 DC DN Contemporary opens to f/1.4 vs the TTArtisan AF 23mm f/1.8's f/1.8 — more light and shallower depth-of-field.
- ›Focal range: Sigma 30mm f/1.4 DC DN Contemporary is 30mm, TTArtisan AF 23mm f/1.8 is 23mm — different framing and reach.
- ›Price: the TTArtisan AF 23mm f/1.8 is $149, $200 under the Sigma 30mm f/1.4 DC DN Contemporary.
- ›Weight: the TTArtisan AF 23mm f/1.8 is 128g (4.5 oz) vs 265g (9.3 oz) — you'll feel the difference handheld.
Frequently asked
Is the Sigma 30mm f/1.4 DC DN Contemporary or the TTArtisan AF 23mm f/1.8 better?
These cover different focal lengths — the Sigma 30mm f/1.4 DC DN Contemporary is 30mm, the TTArtisan AF 23mm f/1.8 is 23mm — so they're not really substitutes. Pick by the field of view you actually need: the Sigma 30mm f/1.4 DC DN Contemporary for standard, the TTArtisan AF 23mm f/1.8 for standard.
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/1.8, better for low light and subject separation. Choose it if you need more reach — it goes to 30mm vs 23mm for distant subjects, wildlife and sport.
Who should choose the TTArtisan AF 23mm f/1.8?
Choose the TTArtisan AF 23mm f/1.8 if you're on a budget — $149 vs $349 leaves more for other gear. Choose it if you value portability — at 128g (4.5 oz) it's lighter than the 265g (9.3 oz) alternative for travel and all-day carry. Choose it if you like close-focus work — 0.14x magnification vs 0.1x.
What is the main difference between the Sigma 30mm f/1.4 DC DN Contemporary and the TTArtisan AF 23mm f/1.8?
Aperture: the Sigma 30mm f/1.4 DC DN Contemporary opens to f/1.4 vs the TTArtisan AF 23mm f/1.8's f/1.8 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 30mm | 23mm |
| Lens Type | Prime | Prime |
| Optical Elements | 9 | 9 |
| Optical Groups | 6 | 7 |
| Aperture & Iris | ||
| Maximum Aperture | f/1.4 | f/1.8 |
| Minimum Aperture | f/16 | f/16 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | No |
| Coverage & Angle | ||
| Format Coverage | APS-C | APS-C |
| Lens Mount | Sony E | Sony E |
| Angle of View | 51° | 63° |
| 35mm Equivalent | 45-45mm | 35-35mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | HLA | STM |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | No |
| Min Focus Distance | 30 cm | 20 cm |
| Max Magnification | 0.1x | 0.14x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | Yes | No |
| Declickable Aperture | Yes | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $349 | $149 |
| Filter Size | 52mm | 49mm |
| Diameter | 64.8mm | 60.1mm |
| Length | 51.5mm | 44.5mm |
| Weight | 265g (9.3 oz) | 128g (4.5 oz) |
| Weather Sealed | No | No |
| Tripod Collar | No | No |
