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Pentax DA 50mm F/1.8 Lens

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.52Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).

Lens Description

The Pentax DA 50mm F/1.8 is a short telephoto prime designed for cameras with a APS-C (1.5X) sensor. This ultra-bright prime has a 50mm focal-length. It provides the same field of view as a 75mm lens on a Full-Frame camera.

This prime can focus down to 45cm from the imaging plane which gives it a maximum magnification of 0.15X. 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 lens is only available for Pentax K. Follow this link for all current compatible digital cameras: Pentax K mount cameras with APS-C (1.5X) sensors.

Pentax DA 50mm F/1.8

Pentax DA 50mm F/1.8 Specifications

Brand Pentax Model DA 50mm F/1.8
Mount Pentax K Max FLM 1.5X
Focal Length 50mm View Angle 32°
Max ApertureF/1.8Min ApertureF/22
Min Focus45cmMagnification0.15X
Filter Size52mm Aperture Blades7
Size (D x L)63 x 39mm Weight122g
TiltN / A ShiftN / A
Stabilization ProtectionNone
Zoom Drive Mechanic Focus Drive AF with Quick-Shift
Zoom Mechanism N / A Focus Mechanism External
Hood Bayonet Focus Motor External
Perspective RectilinearIntroduced2012-05-21

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Pentax 50mm 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.52Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).
50mm Focal-Length F/1.8 Constant Aperture
52mm Filter Thread AF with Quick-Shift
Pentax K Mount 1.5 Max Crop-Factor
122g Lens Weight 63 x 39mm (D x L)
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