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Pentax DA* 55mm F1.4 SDM Lens

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.58Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).

Lens Description

The Pentax DA* 55mm F1.4 SDM is a short telephoto prime designed for cameras with a APS-C (1.5X) sensor. This ultra-bright prime has a 55mm focal-length. It provides the same field of view as a 82.5mm lens on a Full-Frame camera. 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 45cm from the imaging plane which gives it a maximum magnification of 0.173X. The lens offers a Quick-Shift AF system which lets the user simply rotate the focus-ring to focus manually. A Super-Sonic motor inside the lens delivers very fast and relatively quiet AF.

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* 55mm F1.4 SDM

Pentax DA* 55mm F1.4 SDM Specifications

Brand Pentax Model DA* 55mm F1.4 SDM
Mount Pentax K KAF3 Max FLM 1.5X
Focal Length 55mm View Angle 28.6°
Max ApertureF/1.4Min ApertureF/22
Min Focus45cmMagnification0.173X
Filter Size58mm Aperture Blades9
Size (D x L)70.5 x 66mm Weight375g
TiltN / A ShiftN / A
Stabilization ProtectionWeatherproof
Zoom Drive N / A Focus Drive AF with Quick-Shift
Zoom Mechanism N / A Focus Mechanism Internal
Hood Windowed Focus Motor Super Sonic
Perspective RectilinearIntroduced2008-09-22

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Pentax 55mm 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.58Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).
55mm Focal-Length F/1.4 Constant Aperture
58mm Filter Thread AF with Quick-Shift
Pentax K Mount 1.5 Max Crop-Factor
375g Lens Weight 70.5 x 66mm (D x L)
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