The Nikon 24-120mm f/4 and the Sigma 24-105mm f/4 Art are both full-frame standard zooms with a constant f/4 aperture, built for travel, events and general work. Choose the Nikon if you want a little extra reach and a native lens, and choose the Sigma if you prefer its Art-line build and a mount you can carry across systems. We have not used either lens, so check each maker’s page for exact specs.
What They Share
Both lenses begin at 24mm, wide enough for interiors and landscapes, and both stay at f/4 through the zoom. Both include optical stabilization, which helps for handheld shots in modest light. This is the classic “one lens on the camera all day” category, close to what many photographers carry on trips or to weddings when they cannot swap lenses.
Where They Differ
- Reach: the Nikon goes to 120mm and the Sigma to 105mm. That extra 15mm gives a slightly tighter portrait framing and a bit more reach for candid shots.
- Design line: the Sigma belongs to the company’s Art series, which is aimed at optical quality and solid construction. The Nikon is the maker’s own standard zoom and is designed around its camera system.
- Mount choices: the Sigma has been offered in several mounts. Nikon makes versions of its 24-120mm for different Nikon mounts, so check that the version matches your camera.
- Size and weight: the Sigma is generally described as solidly built and on the heavier side. Compare the figures on both pages.
- Autofocus performance: native lenses are designed alongside the body, while third-party lenses usually work well but can differ on some tracking features. Check compatibility notes.
Choosing by Use Case
| Use | Nikon 24-120mm | Sigma 24-105mm |
|---|---|---|
| Travel with one lens | Strong fit | Strong fit |
| Portrait framing | More reach | Slightly less |
| Cross-system flexibility | Native mount only | Several mounts offered |
| Native camera integration | Yes | Check compatibility |
Settings That Suit Both Lenses
- For general daylight work, try f/5.6 to f/8 for a balance of sharpness and depth of field, as a general guide.
- For handheld shots at 105 to 120mm, a shutter speed of roughly 1/125 or faster is a sensible baseline, even with stabilization.
- For portraits, open to f/4 and keep the subject away from a busy background.
FAQ
Is f/4 enough for low light?
It is workable with higher ISO and stabilization, but an f/2.8 zoom lets in about twice the light. For dim venues, many people carry a faster lens.
Do I lose much by going third-party?
Often very little, but check autofocus features, firmware updates and support for your exact body.
The Short Version
These lenses cover similar ground. The Nikon offers more reach and native design, while the Sigma offers its Art build and mount variety. Choose by the extra reach you need and the system you shoot.
