The Tamron 35-150mm f/2.8-4 and a typical 24-70mm f/2.8 zoom are built for different jobs. The 35-150mm leans toward portraits and events with more reach, while a 24-70mm goes wider for landscapes, interiors and general use. Choose by the range you use most, and confirm specs on the maker’s page for the exact models you are considering.

Two Different Ranges
The Tamron 35-150mm f/2.8-4 Di III VXD covers a moderate wide angle through a portrait-friendly telephoto. It opens to f/2.8 at the short end and narrows toward f/4 as you zoom in, which keeps the lens manageable in size.
A standard 24-70mm f/2.8 zoom is a longtime workhorse. It begins wider and tops out at 70mm, with a constant aperture that stays steady while you zoom.
Comparing the Approaches
| Trait | Tamron 35-150mm | Typical 24-70mm f/2.8 |
|---|---|---|
| Wide end | 35mm | 24mm |
| Long end | 150mm | 70mm |
| Aperture | f/2.8 to f/4 variable | Constant f/2.8 |
| Best for | Portraits, events, street details | Interiors, landscapes, general use |
A 24mm view is much wider than 35mm, which matters in tight rooms and for scenes where you cannot step back. At the other end, 150mm brings far-away subjects closer and compresses backgrounds in a flattering way.
How to Decide
- Look through your recent photos and see which focal lengths you used most, since most editing software shows this information.
- If you often wish to be wider, the 24-70mm is the better fit.
- If you often crop in on people or stage events, the 35-150mm suits you.
- Think about a second lens. A wider prime or ultra-wide zoom can fill the gap if you choose the 35-150mm.
- Check mount availability, since the Tamron is offered for selected mirrorless systems only.
Handling Tips
- At 150mm, use a shutter speed of roughly 1/250 and faster for people, adjusting for your stabilization.
- Use f/2.8 at the wide end to gather light indoors.
- Expect the aperture to narrow as you zoom, and raise ISO to keep your shutter speed steady.
One more way to decide is to picture a typical outing. A day of street scenes, family gatherings or a stage performance rewards the longer reach, because you can frame people from where you stand without disturbing the moment. A day of architecture, hotel rooms or mountain views rewards the wider view, because backing up is often impossible. If your outings mix both, think about whether carrying a second small lens is acceptable to you.
FAQ
Can the 35-150mm replace a 24-70mm?
For some shooters, yes, if they rarely use anything wider than 35mm. For others, losing the 24 to 34mm range would be limiting.
Is the variable aperture a problem?
For still photography it is usually manageable. For video, a constant aperture is more convenient because exposure stays steady while you zoom.
The Short Version
Choose the Tamron 35-150mm if portraits, events and reach matter more than width. Choose a 24-70mm f/2.8 if you want a wider view and a constant aperture. Check mounts and specs with the makers before you commit.