The Nikon DX 10-24mm and the DX 10-20mm are both ultra-wide zooms made for APS-C bodies, and the short answer is simple: choose the 10-24mm if you want more range and a brighter wide end, and choose the 10-20mm if you want a small, light lens with stabilization and a quiet focus motor. We have not used these lenses ourselves, so treat this as a decision guide and confirm exact specs on Nikon’s own pages.
What Each Lens Is For
The 10-24mm is the older and larger design in the pair. It covers a slightly longer zoom span, which lets you go from a dramatic, stretched perspective at the wide end to a more natural “wide normal” framing at the long end. Its maximum aperture at the wide end is generally described as brighter than the 10-20mm, which helps indoors and at night.
The 10-20mm is the newer, compact design. It is built around a stepping focus motor and includes vibration reduction, which suits handheld video and slow shutter speeds in dim interiors. It is a lens that disappears into a small camera bag.
Key Differences to Weigh
- Zoom range: the 10-24mm reaches a little further at the long end, so it can replace a lens swap more often.
- Light gathering: the 10-24mm is generally brighter at 10mm, which means lower ISO or faster shutter speeds when light is poor.
- Stabilization: the 10-20mm adds vibration reduction. At ultra-wide focal lengths, a shutter speed of roughly 1/30 to 1/15 is often hand-holdable even without it, so this matters most for video and very dim scenes.
- Size and weight: the 10-20mm is the more compact and lighter of the two.
- Focus motor: the 10-20mm uses a newer stepping-motor design that is quiet and smooth for video.
Compatibility Matters
This is the point many buyers miss. The 10-20mm uses a focus system that only works fully with camera bodies that support it. Some older DSLRs cannot autofocus it, or cannot control its aperture properly, without a firmware update, and some cannot support it at all. The 10-24mm uses the older in-lens motor design and works across a wider range of Nikon bodies. Before you buy either, check your camera’s supported lens list on Nikon’s site.
Quick Comparison Table
| Question | 10-24mm | 10-20mm |
|---|---|---|
| More zoom range | Yes | No |
| Brighter at the wide end | Yes | No |
| Vibration reduction | No | Yes |
| Smaller and lighter | No | Yes |
| Works with older bodies | Broadly yes | Check first |
Who Should Choose Which
- Choose the 10-24mm for real estate, architecture, night skies and interiors where extra light and range help, or if you shoot with an older body.
- Choose the 10-20mm for travel, vlogging and hiking, where weight and smooth video focus count for more.
FAQ
Can I use these DX lenses on a full-frame Nikon?
Yes, but a DX lens on a full-frame body normally forces a cropped image area, so you lose much of the resolution and the ultra-wide effect. They are designed for APS-C cameras.
Do I need vibration reduction on an ultra-wide?
Not always. Wide lenses forgive slow shutter speeds better than long lenses. It helps most for handheld video, dusk scenes and walk-and-talk clips.
The Short Version
The 10-24mm is the more flexible and brighter option, while the 10-20mm is the lighter, stabilized one with a quieter motor. Check body compatibility before buying the 10-20mm, then choose by whether range or portability matters more to you.
