Sigma A 40mm F/1.4 DG hSM Lens
For Sigma S Mount

Weatherproof - Seals protect from dust, humidity and light splashing.Weatherproof - Seals protect from dust, humidity and light splashing.Fixed focal-length. No zoom.Fixed focal-length. No zoom.Rectilinear are normal lenses that show straight lines as straight lines.Rectilinear are normal lenses that show straight lines as straight lines.Thread size in milimeters for screw-on filters.Thread size in milimeters for screw-on filters.82Autofocus LensAutofocus Lens

Lens Description

The Sigma A 40mm F/1.4 DG hSM is a normal prime designed for cameras with a Full-Frame sensor. This ultra-bright prime has a 40mm focal-length. The body of this lens is weatherproof against adverse weather such as rain and snow. It has sealing to prevent entry of water and dust.

This prime can focus down to 40cm from the imaging plane which gives it a maximum magnification of 0.15X. The lens supports autofocus and features a switch to disengage AF for focusing manually. A Super-Sonic motor inside the lens delivers very fast and relatively quiet AF.

This version has a Sigma S lens mount. Follow this link for all current compatible digital cameras: Sigma S mount cameras. Sigma also made this lens available for Canon EF, Nikon F, Sony E mounts.

Sigma A 40mm F/1.4 DG hSM

Sigma A 40mm F/1.4 DG hSM Specifications

Brand Sigma Model A 40mm F/1.4 DG hSM
Mount Max FLM 1X
Focal Length 40mm View Angle 56°
Max ApertureF/1.4Min ApertureF/16
Min Focus40cmMagnification0.15X
Filter Size82mm Aperture Blades9
Size (D x L)88 x 131mm Weight1270g
TiltN / A ShiftN / A
Stabilization ProtectionWeatherproof
Zoom Drive Mechanic Focus Drive AF with MF Switch
Zoom Mechanism N / A Focus Mechanism Internal
Hood Bayonet Focus Motor Super Sonic
Perspective RectilinearIntroduced2018-09-25

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Sigma 40mm F/1.4 Facts


Weatherproof - Seals protect from dust, humidity and light splashing.Weatherproof - Seals protect from dust, humidity and light splashing.Fixed focal-length. No zoom.Fixed focal-length. No zoom.Rectilinear are normal lenses that show straight lines as straight lines.Rectilinear are normal lenses that show straight lines as straight lines.Thread size in milimeters for screw-on filters.Thread size in milimeters for screw-on filters.82Autofocus LensAutofocus Lens
40mm Focal-Length F/1.4 Constant Aperture
82mm Filter Thread AF with MF Switch
Sigma S Mount 1 Max Crop-Factor
1270g Lens Weight 88 x 131mm (D x L)
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