Sigma 24mm f/1.8 (5-Pin) EX DG Aspherical Macro AF Lens for Nikon F {77}

Sigma's F1.8 24mm prime with true macro-close focus

A 24mm full-frame prime built around an f/1.8 maximum aperture, which is a stop-plus faster than the f/2.8 primes typical of this focal length. That extra speed matters for available-light work, and it's paired with a minimum focus distance of 0.18m, letting you get close enough to small subjects that most other 24mm lenses can't touch.

The optical formula runs 10 elements in 9 groups, including 2 aspherical elements to control distortion and edge softness at this wide angle. A 9-blade diaphragm shapes out-of-focus rendering, while the internal focus design with its dual focus mechanism and floating focus system keeps the front element stationary and maintains performance across the focus range, from infinity down to that 0.18m macro distance.

Full-time manual override sits alongside autofocus, so you can fine-tune focus without switching modes, and both a distance scale and depth-of-field scale are on hand for zone-focusing work. The Nikon F mount version retains a physical aperture ring for shooters who prefer manual aperture control on older bodies. At 485g and 84mm x 83mm, it's a prime that balances well on full-frame Nikon bodies without demanding a second thought about handling.

This is a lens built for people who want speed, close-focus versatility, and manual control in one 24mm package.

Who It's For

Landscape and architecture shooters get a wide, distortion-controlled field of view from the aspherical element design, useful for interiors and environmental scenes where straight lines matter. Available-light and event photographers benefit from the f/1.8 aperture, gathering more light than typical wide primes when shooting indoors or after dusk. Anyone drawn to close-up or small-scene work gains real reach from the 0.18m minimum focus distance, tight enough for detail shots without switching lenses. Manual-focus purists and zone-focus street shooters will appreciate the distance scale, DoF scale, and full-time manual override, all workable alongside the Nikon F mount's aperture ring for direct exposure control on compatible bodies.

Key Features

• f/1.8 maximum aperture for available-light work
• 0.18m minimum focus distance for macro-close subjects
• 10-element optical formula with 2 aspherical elements
• 9-blade diaphragm for out-of-focus rendering
• Internal focus with dual mechanism and floating system
• Full-time manual focus override alongside autofocus
• Physical aperture ring for manual aperture control
• Distance scale and DoF scale for zone focusing

FAQ

What's the minimum focus distance on this 24mm?

0.18m (about 7 inches). That's closer than most 24mm lenses can focus, giving you genuine macro capability for small subjects without switching to a dedicated macro lens.

Does it have an aperture ring?

Yes. The Nikon F mount version includes a physical aperture ring, so you can adjust aperture directly without relying on camera dials - useful if you're working with older bodies that don't have electronic aperture control.

How many elements and aspherical elements are in the optical formula?

10 elements in 9 groups, with 2 aspherical elements to manage distortion and edge softness across the frame at this wide angle.

Can you manually adjust focus while autofocus is active?

Yes, full-time manual override is built in. You can fine-tune focus without switching modes or powering down autofocus.

What tools does it have for zone focusing?

Both a distance scale and depth-of-field scale are printed on the barrel, letting you zone focus without relying on autofocus or the viewfinder.

How does the internal focus system work?

It uses a dual focus mechanism with a floating focus system that keeps the front element stationary throughout the focus range. This design maintains optical performance from infinity down to 0.18m without the front element rotating or extending.