The Tamron 17-50mm f/4 Di III VXD and the Sony FE 24-105mm f/4 G OSS are both constant-aperture f/4 zooms for Sony full-frame cameras, but they cover different ranges. The Tamron goes wider and stays compact, while the Sony reaches much further into telephoto. Choose based on whether you want width or reach, and confirm specs on each maker’s page.

What Each Lens Is Built For
The Tamron 17-50mm f/4 is a compact standard zoom that begins at a true wide angle. That makes it handy for interiors, travel, street scenes and landscapes where you want to include more of the surroundings.
The Sony FE 24-105mm f/4 G OSS is a longer-reaching all-purpose zoom from Sony’s G line. It begins less wide but extends to 105mm, which covers portraits, details and distant subjects without a lens change.
Where They Differ
| Trait | Tamron 17-50mm f/4 | Sony 24-105mm f/4 G OSS |
|---|---|---|
| Focal range | 17-50mm, wide to normal | 24-105mm, standard to short telephoto |
| Aperture | Constant f/4 | Constant f/4 |
| Size class | Compact | Larger, longer barrel |
| Stabilization | Check the maker’s page; your body may help | Optical stabilization (OSS) in the lens |
| Best for | Wide scenes, travel, interiors | One-lens trips, portraits, events |
How to Choose
- Look at your last hundred photos. If many are cropped tight or you wished for more reach, the 105mm end of the Sony helps.
- If you frequently feel you cannot fit everything in, the 17mm end of the Tamron solves that.
- Think about carrying weight. A smaller lens is easier to take everywhere, particularly on a small mirrorless body.
- Consider stabilization. Many Sony bodies include in-body stabilization, but a lens with optical stabilization can add to it, especially at longer focal lengths.
- Check how you shoot video. Focus behavior and breathing differ between lenses, so look at the maker details and sample footage.
Things to Remember
- Neither lens is a very fast portrait lens; f/4 is moderately bright.
- A wide opening range helps for architecture and groups.
- Longer reach helps for events, travel details and wildlife at modest distances.
- Both mount to Sony E bodies, but confirm the version.
FAQ
Can the Tamron replace the Sony for travel?
It can if you mostly shoot wide to normal scenes. If you want to photograph faraway details or tighter portraits, you may miss the longer reach of the 24-105mm.
Which lens suits video better?
Both can work. A lens with built-in stabilization and well-known focus behavior is helpful for handheld video, but compare the current feature lists to see which fits your recording style.
The Short Version
The Tamron 17-50mm f/4 is the choice for width and portability, while the Sony FE 24-105mm f/4 G OSS is the choice for reach and one-lens flexibility. Decide which end of the range you miss most, then check current specs with Tamron and Sony.