Sony FE 40mm F2.5 GvsTamron 28-75mm F/2.8 Di III RXD
FE 40mm F2.5 G
40mm / F2.5
—
28-75mm F/2.8 Di III RXD
28-75mm / F2.8
—
Which to choose
When the FE 40mm F2.5 G suits you better
- Brightness0.3 stops brighter — better in low light and blurs the background more
- Weight377g lighter, so easier to carry
When the 28-75mm F/2.8 Di III RXD suits you better
- Close focusFocuses as close as 19cm
- Zoom rangeCovers 28-75mm in a single lens
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
- FE 40mm F2.5 G45mm long × 68mm diameter
- 28-75mm F/2.8 Di III RXD117.8mm long × 73mm diameter
Specifications compared
| Specification | Sony FE 40mm F2.5 G | Tamron 28-75mm F/2.8 Di III RXD | Difference |
|---|---|---|---|
| Focal length (wide) | 40mm | 28mm | +12mm |
| Focal length (tele) | 40mm | 75mm | −35mm |
| Max aperture (wide) | F2.5 | F2.8 | 0.3 stops brighter |
| Max aperture (tele) | F2.5 | F2.8 | 0.3 stops brighter |
| Min aperture | F22 | F22 | — |
| Min focus distance | 28cm | 19cm | +0.09m |
| Max magnification | 0.20× | 0.34× | −0.14x |
| Aperture blades | 7blades | 9blades | −2blades |
| Weight | 173g | 550g | −377g |
| Length | 45mm | 117.8mm | −72.8mm |
| Diameter | 68mm | 73mm | −5mm |
| Filter size | 49mm | 67mm | −18mm |
| Released | 2021 | 2018 | +3year |
| Stabilization | No | No | — |
| Weather sealing | Yes | Yes | — |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as FE 40mm F2.5 G relative to 28-75mm F/2.8 Di III RXD.The highlighted cell is the better side for that specification.
Check prices
FE 40mm F2.5 G
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28-75mm F/2.8 Di III RXD
ADLinks to Amazon, B&H Photo, Adorama, KEH Camera, MPB, eBay are affiliate links. We may earn a commission if you buy through them, at no extra cost to you.Links marked “Search results” go to that retailer’s search page for this lens name.Check price and availability on the retailer’s own site.
FE 40mm F2.5 G in detail28-75mm F/2.8 Di III RXD in detailAll E-mount lenses