Sigma 28-70mm F2.8 DG DN | Contemporary vs Tamron 28-75mm F/2.8 Di III RXD
Key differences
- —The 28-70mm F2.8 DG DN | Contemporary is 80g lighter (470g vs 550g).
- —At launch the 28-75mm F/2.8 Di III RXD cost $100 less ($799 vs $899).
- —For close-ups the 28-75mm F/2.8 Di III RXD reaches 0.34× vs 0.30×.
- Mount
- Sony E (FE)
- Sony E (FE)
- Focal length
- 28–70mm
- 28–75mm
- Max aperture
- F2.8
- F2.8
- Weight
- 470g◆
- 550g
- Dimensions ⌀ × L
- 72.2 × 103.5mm
- 73.0 × 117.8mm
- Volume
- 424 cm³◆
- 493 cm³
- Density
- 1.11 g/cm³
- 1.12 g/cm³
- Filter thread
- ⌀67mm
- ⌀67mm
- Min focus
- 0.19m
- 0.19m
- Max magnification
- 0.30×
- 0.34×◆
- Elements / groups
- 16 / 12
- 15 / 12
- Aperture blades
- 9
- 9
- Focus drive
- Stepping Motor
- RXD Stepping Motor
- Stabilisation
- —
- —
- Weather sealed
- —
- Yes
- Aperture ring
- —
- —
- Released
- 2021
- 2018
- MSRP (USD)
- $899
- $799◆
- Sharpness
- 8.6◆
- 8.2
- Bokeh Rendering
- 7.8◆
- 7.7
- Autofocus Speed
- 8.2◆
- 7.8
- Flare Resistance
- 8.0◆
- 7.2
- Build / Sealing
- 7.8◆
- 7.6
- Value / Size
- 9.0◆
- 8.8
Performance overlay
- 28-70mm F2.8 DG DN | Contemporary
- 28-75mm F/2.8 Di III RXD
◆ marks the best value in a row. Scores are 0–10 editorial ratings.