Sigma 28 70Mm F28 Dg Dn Contemporary
VS
Tamron 17-70 F2.8 Di III-A VC RXD Lens
Feature Comparison
Main components
Main components
| Lens Technology | Zoom Lens | Zoom Lens |
|---|---|---|
| Max Format Dimensions | 35mm full-frame | |
| Focal Length in Millimeters | 28-70 millimeter (mm) | 17-70 mm |
| Image Stabilization Feature | No | Yes |
| Lens Mounts | L-Mount, Sony E | Sony E |
Diaphragm settings
Diaphragm settings
| Maximum Aperture (f-stop) | ||
|---|---|---|
| Minimum Aperture | ||
| Aperture Control Ring | No | No |
Optical features
Optical features
| Number of Optical Elements | ||
|---|---|---|
| Number of Optical Groups | ||
| Special Optical Elements | 3 Aspherical elements, Nano Porous and Super Multi-Layer coatings / 2 FLD and 2 SLD elements | One aspherical element, 2 glass-molded aspherical elements |
| Minimum Focusing Distance | 0.19 meter (m) | 0.19 meter (m) |
| Maximum zoom level | 0.3 times (e.g., 2x for 2 times) | 0.21 times (e.g., 2x for 2 times) |
Focus features
Focus features
| Auto Focus | Yes | Yes |
|---|---|---|
| Internal focus motor | Stepper motor | Stepper motor |
| Permanent Manual Focus Capability | Yes | No |
| Focus Operation Method | Internal | Internal |
Aesthetic features
Aesthetic features
| Product Weight | 470 gram (g) | 525 gram (g) |
|---|
Body material and design
Body material and design
| Diameter | 72 millimeter (mm) | 75 millimeter (mm) |
|---|---|---|
| Length | 102 millimeter (mm) | 119 millimeter (mm) |
| Material | Magnesium Alloy | - |
| Environmental Resistance | Yes | Yes |
| Filter Diameter | 67 millimeter (mm) | 67 millimeter (mm) |
| Hood | Yes | Yes |
| Zoom mechanism | Rotary (internal) | Rotary (extending length) |
| Tripod Mount Tab | No | No |
| Power Zoom | - | No |
| Zoom Lock | - | No |
Other items or details
Other items or details
| Release Date |
|---|
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User Rating Comparison
Sigma 28 70Mm F28 Dg Dn Contemporary
0
/10
from total 1 Vote
Tamron 17-70 F2.8 Di III-A VC RXD Lens
0
/10
from total 1 Vote
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