The Tamron 90mm f/2.8 Di III VXD Macro and the Sigma 105mm f/2.8 DG DN Macro Art are both true macro lenses for mirrorless cameras. The Tamron is the compact, lighter-handling option, and the Sigma gives slightly more working distance with a premium Art-line build. Choose the Tamron for portability and the Sigma for a more deluxe, longer macro tool.
What Each Lens Is For
Macro lenses reproduce small subjects at life size or close to it, such as flowers, insects, jewelry and product details. Both of these lenses are in the short-telephoto macro class, so you can stay a comfortable distance from your subject while still filling the frame.
Because the focal lengths are close to portrait lengths, both lenses can double as sharp portrait or detail lenses when you are not shooting at close range.
Key Differences
| Trait | Tamron 90mm | Sigma 105mm |
|---|---|---|
| Focal length | 90mm | 105mm |
| Aperture | f/2.8 | f/2.8 |
| Macro ability | Life-size class | Life-size class |
| Build line | Standard Tamron | Sigma Art |
| Focus | VXD motor | Sigma’s mirrorless focus system |
Check each maker’s page for the exact magnification, minimum focus distance, weight and available mounts, and confirm the lens exists for your camera.
How to Decide
- Think about your subject. Skittish insects benefit from longer working distance, and the extra 15mm helps a little.
- Consider travel. A smaller lens is easier to take on long walks and hikes.
- Check how often you plan to use the lens for non-macro work such as portraits. Both are suitable, though handling differs.
- Compare the mount and accessory options, including tripod collars and lens hoods.
Macro Technique Basics
- Depth of field is very thin at close range. As general guidance, apertures of roughly f/8 to f/11 give more of the subject sharp, with a trade-off in light.
- Use a tripod or a high shutter speed, since small movements are magnified.
- Focus manually with focus peaking or magnification for fine control.
- A small flash or constant light helps when you stop down.
These are general first settings to adapt to your subject. Shooting outdoors on a calm, overcast day makes insects and flowers easier to hold still.
Mounts and Accessories
These lenses are made for specific mirrorless mounts, and not every mount is covered by both. Sony E is the common meeting point, but check each maker’s page for the full list. Consider a macro focusing rail, a lens support and a diffuser, since small accessories improve close-up results more than people expect.
FAQ
Is a macro lens good for portraits?
It can be. Both focal lengths suit head and shoulders portraits, though macro lenses are often tuned for close-up detail rather than speed.
Do I need a macro lens, or are extension tubes enough?
Tubes are a low-effort way to try close-up work. A true macro lens is more convenient and keeps focus control throughout the range.
The Short Version
Both lenses cover serious macro work. Choose the Tamron 90mm for lighter, easier carrying, and the Sigma 105mm Art for a longer working distance and a premium build. Confirm exact specs on the makers’ pages.
