Sigma 20-200mm F3.5-6.3 DG Contemporary vs Sony FE 20-70mm f/4 G
The bottom line
Similar coverage, different speed: the Sigma 20-200mm F3.5-6.3 DG Contemporary opens to f/3.5 versus the Sony FE 20-70mm f/4 G's f/4 — more light and shallower background blur. The Sony FE 20-70mm f/4 G gives that up to stay lighter (488g (1.08 lb)). It comes down to how much you value that extra brightness.
Choose the Sigma 20-200mm F3.5-6.3 DG Contemporary if…
- ✓You need more reach — it goes to 200mm vs 70mm for distant subjects, wildlife and sport.
Where they differ
- ›Aperture: the Sigma 20-200mm F3.5-6.3 DG Contemporary opens to f/3.5 vs the Sony FE 20-70mm f/4 G's f/4 — more light and shallower depth-of-field.
- ›Focal range: Sigma 20-200mm F3.5-6.3 DG Contemporary is 20-200mm, Sony FE 20-70mm f/4 G is 20-70mm — different framing and reach.
- ›Price: the Sigma 20-200mm F3.5-6.3 DG Contemporary is $999, $100 under the Sony FE 20-70mm f/4 G.
Frequently asked
Is the Sigma 20-200mm F3.5-6.3 DG Contemporary or the Sony FE 20-70mm f/4 G better?
Similar coverage, different speed: the Sigma 20-200mm F3.5-6.3 DG Contemporary opens to f/3.5 versus the Sony FE 20-70mm f/4 G's f/4 — more light and shallower background blur. The Sony FE 20-70mm f/4 G gives that up to stay lighter (488g (1.08 lb)). It comes down to how much you value that extra brightness.
Who should choose the Sigma 20-200mm F3.5-6.3 DG Contemporary?
Choose the Sigma 20-200mm F3.5-6.3 DG Contemporary if you need more reach — it goes to 200mm vs 70mm for distant subjects, wildlife and sport.
What is the main difference between the Sigma 20-200mm F3.5-6.3 DG Contemporary and the Sony FE 20-70mm f/4 G?
Aperture: the Sigma 20-200mm F3.5-6.3 DG Contemporary opens to f/3.5 vs the Sony FE 20-70mm f/4 G's f/4 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 20-200mm | 20-70mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | 18 | 16 |
| Optical Groups | 14 | 13 |
| Aperture & Iris | ||
| Maximum Aperture | f/3.5 | f/4 |
| Minimum Aperture | f/22 | f/22 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | 94.5° – 12.3° | 94° – 34° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | HLA | XD Linear |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 17 cm | 25 cm |
| Max Magnification | 0.5x | 0.39x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | Yes |
| Declickable Aperture | No | Yes |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $999 | $1,099 |
| Filter Size | 72mm | 72mm |
| Diameter | 77.2mm | 78.7mm |
| Length | 115.5mm | 99mm |
| Weight | 540g (1.19 lb) | 488g (1.08 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
