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Sigma 24mm F1.8 EX DG ASP Macro Lens
For Pentax K Mount

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.77Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).

Lens Description

The Sigma 24mm F1.8 EX DG ASP Macro is an ultra-wide prime designed for cameras with Full-Frame sensors. This ultra-bright prime has a 24mm focal-length.

This prime is capable of focusing down to 18cm from the imaging plane which gives it a maximum magnification of 0.37X. The lens offers a Quick-Shift AF system which lets the user simply rotate the focus-ring to focus manually. While this lens is capable of AF, it does not have a built-in focus motor. It can only focus with a compatible camera body which features a mechanical AF-coupling.

This version has a Pentax K lens mount. Follow this link to see all current compatible digital cameras: Pentax K mount cameras with Full-Frame or larger sensor. Sigma also made this lens available for Canon EF, Nikon F, Four-Thirds, Sony A, Sigma S mounts.

Sigma 24mm F1.8 EX DG ASP Macro

Sigma 24mm F1.8 EX DG ASP Macro Specifications

Brand Sigma Model 24mm F1.8 EX DG ASP Macro
Mount Max FLM 1X
Focal Length 24mm View Angle 84°
Max ApertureF/1.8Min ApertureF/22
Min Focus18cmMagnification0.37X
Filter Size77mm Aperture Blades9
Size (D x L)83 x 80mm Weight485g
TiltN / A ShiftN / A
Stabilization ProtectionNone
Zoom Drive N / A Focus Drive AF with quick-shift
Zoom Mechanism N / A Focus Mechanism Internal
Hood Bayonet Focus Motor External
Perspective RectilinearIntroduced

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Sigma 24mm F/1.8 Facts


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.77Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).
24mm Focal-Length F/1.8 Constant Aperture
77mm Filter Thread AF with quick-shift
Pentax K Mount 1 Max Crop-Factor
485g Lens Weight 83 x 80mm (D x L)
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