Tamron 20-40mm F/2.8 Di III VXDvsTamron 24mm F/2.8 Di III OSD M1:2
20-40mm F/2.8 Di III VXD
20-40mm / F2.8
—
24mm F/2.8 Di III OSD M1:2
24mm / F2.8
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Which to choose
When the 20-40mm F/2.8 Di III VXD suits you better
- Zoom rangeCovers 20-40mm in a single lens
When the 24mm F/2.8 Di III OSD M1:2 suits you better
- Weight150g lighter, so easier to carry
- Close focusFocuses as close as 12cm
These points are derived mechanically from the numbers. How a lens actually renders does not show up in specifications, so look at samples before deciding.
Size compared
- 20-40mm F/2.8 Di III VXD86.5mm long × 74.4mm diameter
- 24mm F/2.8 Di III OSD M1:264mm long × 73mm diameter
Specifications compared
| Specification | Tamron 20-40mm F/2.8 Di III VXD | Tamron 24mm F/2.8 Di III OSD M1:2 | Difference |
|---|---|---|---|
| Focal length (wide) | 20mm | 24mm | −4mm |
| Focal length (tele) | 40mm | 24mm | +16mm |
| Max aperture (wide) | F2.8 | F2.8 | — |
| Max aperture (tele) | F2.8 | F2.8 | — |
| Min aperture | F22 | F22 | — |
| Min focus distance | 17cm | 12cm | +0.05m |
| Max magnification | 0.26× | 0.50× | −0.24x |
| Aperture blades | 9blades | 7blades | +2blades |
| Weight | 365g | 215g | +150g |
| Length | 86.5mm | 64mm | +22.5mm |
| Diameter | 74.4mm | 73mm | +1.4mm |
| Filter size | 67mm | 67mm | — |
| Released | 2022 | 2019 | +3year |
| Stabilization | No | No | — |
| Weather sealing | Yes | Yes | — |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as 20-40mm F/2.8 Di III VXD relative to 24mm F/2.8 Di III OSD M1:2.The highlighted cell is the better side for that specification.
Check prices
20-40mm F/2.8 Di III VXD
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24mm F/2.8 Di III OSD M1:2
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20-40mm F/2.8 Di III VXD in detail24mm F/2.8 Di III OSD M1:2 in detailAll E-mount lenses