Both lenses keep a constant f/4 aperture, but the Nikon Z 24-120mm reaches much farther into telephoto, while the Z 24-70mm f/4 is the smaller and lighter of the two. Choose the 24-120 for one-lens travel and variety. Choose the 24-70 f/4 for compact carry. Confirm exact specs on Nikon’s pages.
What Each Lens Is For
The 24-70mm f/4 is a compact standard zoom, often sold as a kit lens with Z 5 and Z 6 series bodies. The 24-120mm f/4 is a longer all-purpose zoom that aims to replace several lenses with one. Both are part of Nikon’s S-Line and share a bright, constant aperture across the zoom range.
Main Differences
- Zoom range: The 24-120 adds a lot of reach at the long end, handy for candid portraits, street scenes and distant details.
- Size and weight: The 24-70 f/4 is smaller and lighter, and it retracts for storage.
- Constant aperture: Both hold f/4 as you zoom, so exposure stays steady for video and stills.
- Versatility: One 24-120 can cover scenes that would otherwise need a second lens or a lens swap.
- Handling on a body: The larger lens makes a bigger kit, so check how it feels on your camera with a grip and strap.
When Each One Makes Sense
- City breaks and family trips: Choose the 24-120. You can go from a wide street view to a tight detail without changing glass.
- Landscape hikes with a light bag: Choose the 24-70 f/4 if weight matters more than reach.
- Casual video: The 24-120 gives more framing options from a single position.
- Second lens next to a prime: A small 24-70 f/4 slips easily beside a fast prime in the bag.
Side by Side
| Trait | 24-70mm f/4 | 24-120mm f/4 |
|---|---|---|
| Long end reach | Shorter | Much longer |
| Size and weight | Compact, lighter | Larger, heavier |
| Aperture | Constant f/4 | Constant f/4 |
| Best for | Light kit | One-lens versatility |
A Practical Way to Decide
Look through your own photo library and check the focal lengths you used most. Many cataloging tools can filter by focal length. If you often end up near the 70mm limit, the extra reach will pay off. If your shots cluster between 24mm and 50mm, the smaller lens loses nothing and gives you a lighter bag. Also consider shallow depth of field: neither lens produces strong background blur at f/4, so a separate prime may still be on your list.
FAQ
Does the longer zoom hurt image quality?
Wide zoom ranges involve design trade-offs, so each lens will have its own strengths. Look at sample images from the maker and from photographers you trust, and judge them on subjects like yours.
Do both work for video?
Yes, both are Z mount lenses made for modern hybrid bodies. A constant aperture helps keep exposure steady while zooming.
The Short Version
Choose the Nikon Z 24-120mm f/4 if you want one lens for travel and mixed subjects. Choose the 24-70mm f/4 if you want a lighter, more compact kit and rarely need long reach. Check your own focal length habits before deciding.
