Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) vs Sigma 50mm f/2 DG DN Contemporary (L-mount)
The bottom line
These cover different focal lengths — the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) is 180mm, the Sigma 50mm f/2 DG DN Contemporary (L-mount) is 50mm — so they're not really substitutes. Pick by the field of view you actually need: the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) for telephoto, the Sigma 50mm f/2 DG DN Contemporary (L-mount) for short-telephoto / portrait.
Choose the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) if…
- ✓You need more reach — it goes to 180mm vs 50mm for distant subjects, wildlife and sport.
- ✓You shoot close-ups — 1.5x magnification gets you true macro the other can't.
Choose the Sigma 50mm f/2 DG DN Contemporary (L-mount) if…
- ✓You want more light and background blur — f/2 is faster than f/4.5, better for low light and subject separation.
- ✓You shoot wide — it starts at 50mm vs 180mm for landscapes, interiors and architecture.
- ✓You value portability — at 290g (10.2 oz) it's lighter than the 522g (1.15 lb) alternative for travel and all-day carry.
Where they differ
- ›Aperture: the Sigma 50mm f/2 DG DN Contemporary (L-mount) opens to f/2 vs the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount)'s f/4.5 — more light and shallower depth-of-field.
- ›Focal range: Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) is 180mm, Sigma 50mm f/2 DG DN Contemporary (L-mount) is 50mm — different framing and reach.
- ›Close-up: the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) reaches 1.5x magnification vs 0.22x — more for close-up and macro work.
- ›Weight: the Sigma 50mm f/2 DG DN Contemporary (L-mount) is 290g (10.2 oz) vs 522g (1.15 lb) — you'll feel the difference handheld.
Frequently asked
Is the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) or the Sigma 50mm f/2 DG DN Contemporary (L-mount) better?
These cover different focal lengths — the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) is 180mm, the Sigma 50mm f/2 DG DN Contemporary (L-mount) is 50mm — so they're not really substitutes. Pick by the field of view you actually need: the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) for telephoto, the Sigma 50mm f/2 DG DN Contemporary (L-mount) for short-telephoto / portrait.
Who should choose the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount)?
Choose the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) if you need more reach — it goes to 180mm vs 50mm for distant subjects, wildlife and sport. Choose it if you shoot close-ups — 1.5x magnification gets you true macro the other can't.
Who should choose the Sigma 50mm f/2 DG DN Contemporary (L-mount)?
Choose the Sigma 50mm f/2 DG DN Contemporary (L-mount) if you want more light and background blur — f/2 is faster than f/4.5, better for low light and subject separation. Choose it if you shoot wide — it starts at 50mm vs 180mm for landscapes, interiors and architecture. Choose it if you value portability — at 290g (10.2 oz) it's lighter than the 522g (1.15 lb) alternative for travel and all-day carry.
What is the main difference between the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount) and the Sigma 50mm f/2 DG DN Contemporary (L-mount)?
Aperture: the Sigma 50mm f/2 DG DN Contemporary (L-mount) opens to f/2 vs the Laowa 180mm f/4.5 1.5X Ultra Macro APO AF (L-Mount)'s f/4.5 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 180mm | 50mm |
| Lens Type | Prime | Prime |
| Optical Elements | 12 | 11 |
| Optical Groups | 9 | 8 |
| Aperture & Iris | ||
| Maximum Aperture | f/4.5 | f/2 |
| Minimum Aperture | f/22 | f/16 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | L-Mount | L-Mount |
| Angle of View | 13.7° | 47° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | STM | HLA |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 30 cm | 25 cm |
| Max Magnification | 1.5x | 0.22x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | Yes | Yes |
| Declickable Aperture | No | Yes |
| Parfocal | No | No |
| Internal Zoom | Yes | No |
| General | ||
| Price (MSRP) | $499 | $499 |
| Filter Size | 62mm | 55mm |
| Diameter | 67.6mm | 64.4mm |
| Length | 134.4mm | 68mm |
| Weight | 522g (1.15 lb) | 290g (10.2 oz) |
| Weather Sealed | No | No |
| Tripod Collar | No | No |
