Tamron 28-75mm F/2.8 Di III VXD G2 vs Voigtlander NOKTON 50mm f/1.2 Aspherical
The bottom line
The Tamron 28-75mm F/2.8 Di III VXD G2 is a zoom (28-75mm) and the Voigtlander NOKTON 50mm f/1.2 Aspherical is a 50mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/1.2 vs f/2.8) and lighter to carry. Choose flexibility or a fast single focal length.
Choose the Tamron 28-75mm F/2.8 Di III VXD G2 if…
- ✓You need more reach — it goes to 75mm vs 50mm for distant subjects, wildlife and sport.
- ✓You shoot wide — it starts at 28mm vs 50mm for landscapes, interiors and architecture.
- ✓You want one-lens flexibility — a 28-75mm zoom covers what the fixed 50mm can't reframe.
- ✓You like close-focus work — 0.34x magnification vs 0.15x.
Choose the Voigtlander NOKTON 50mm f/1.2 Aspherical if…
- ✓You want more light and background blur — f/1.2 is faster than f/2.8, better for low light and subject separation.
- ✓You prefer a fast, compact single focal length — a 50mm prime over a zoom.
- ✓You value portability — at 336g (11.9 oz) it's lighter than the 540g (1.19 lb) alternative for travel and all-day carry.
Where they differ
- ›Aperture: the Voigtlander NOKTON 50mm f/1.2 Aspherical opens to f/1.2 vs the Tamron 28-75mm F/2.8 Di III VXD G2's f/2.8 — more light and shallower depth-of-field.
- ›Focal range: Tamron 28-75mm F/2.8 Di III VXD G2 is 28-75mm, Voigtlander NOKTON 50mm f/1.2 Aspherical is 50mm — different framing and reach.
- ›Type: the Tamron 28-75mm F/2.8 Di III VXD G2 is a zoom (flexible framing), the Voigtlander NOKTON 50mm f/1.2 Aspherical a prime (one focal length, usually brighter and lighter).
- ›Weight: the Voigtlander NOKTON 50mm f/1.2 Aspherical is 336g (11.9 oz) vs 540g (1.19 lb) — you'll feel the difference handheld.
- ›Durability: the Tamron 28-75mm F/2.8 Di III VXD G2 is weather-sealed; the other isn't.
Frequently asked
Is the Tamron 28-75mm F/2.8 Di III VXD G2 or the Voigtlander NOKTON 50mm f/1.2 Aspherical better?
The Tamron 28-75mm F/2.8 Di III VXD G2 is a zoom (28-75mm) and the Voigtlander NOKTON 50mm f/1.2 Aspherical is a 50mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/1.2 vs f/2.8) and lighter to carry. Choose flexibility or a fast single focal length.
Who should choose the Tamron 28-75mm F/2.8 Di III VXD G2?
Choose the Tamron 28-75mm F/2.8 Di III VXD G2 if you need more reach — it goes to 75mm vs 50mm for distant subjects, wildlife and sport. Choose it if you shoot wide — it starts at 28mm vs 50mm for landscapes, interiors and architecture. Choose it if you want one-lens flexibility — a 28-75mm zoom covers what the fixed 50mm can't reframe. Choose it if you like close-focus work — 0.34x magnification vs 0.15x.
Who should choose the Voigtlander NOKTON 50mm f/1.2 Aspherical?
Choose the Voigtlander NOKTON 50mm f/1.2 Aspherical if you want more light and background blur — f/1.2 is faster than f/2.8, better for low light and subject separation. Choose it if you prefer a fast, compact single focal length — a 50mm prime over a zoom. Choose it if you value portability — at 336g (11.9 oz) it's lighter than the 540g (1.19 lb) alternative for travel and all-day carry.
What is the main difference between the Tamron 28-75mm F/2.8 Di III VXD G2 and the Voigtlander NOKTON 50mm f/1.2 Aspherical?
Aperture: the Voigtlander NOKTON 50mm f/1.2 Aspherical opens to f/1.2 vs the Tamron 28-75mm F/2.8 Di III VXD G2's f/2.8 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 28-75mm | 50mm |
| Lens Type | Zoom | Prime |
| Optical Elements | 17 | 10 |
| Optical Groups | 14 | 8 |
| Aperture & Iris | ||
| Maximum Aperture | f/2.8 | f/1.2 |
| Minimum Aperture | f/22 | f/16 |
| Aperture Blades | 9 | 12 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | 75° – 32° | 47° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | No |
| Focus Motor | VXD | − |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | No |
| Min Focus Distance | 18 cm | 45 cm |
| Max Magnification | 0.34x | 0.15x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $799 | $799 |
| Filter Size | 67mm | 58mm |
| Diameter | 75.8mm | 68mm |
| Length | 117.6mm | 67mm |
| Weight | 540g (1.19 lb) | 336g (11.9 oz) |
| Weather Sealed | Yes | No |
| Tripod Collar | No | No |
