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Pentax DA* 300mm F4 ED(IF) 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.77Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).

Lens Description

The Pentax DA* 300mm F4 ED(IF) SDM is a super telephoto prime designed for cameras with a APS-C (1.5X) sensor. This prime has a 300mm focal-length. It provides the same field of view as a 450mm 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 140cm from the imaging plane which gives it a maximum magnification of 0.24X. 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* 300mm F4 ED(IF) SDM

Pentax DA* 300mm F4 ED(IF) SDM Specifications

Brand Pentax Model DA* 300mm F4 ED(IF) SDM
Mount Pentax K KAF2 Max FLM 1.5X
Focal Length 300mm View Angle 5.4°
Max ApertureF/4Min ApertureF/32
Min Focus140cmMagnification0.24X
Filter Size77mm Aperture Blades9
Size (D x L)83 x 184mm Weight1070g
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 RectilinearIntroduced2011-04-06

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Pentax 300mm F/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.77Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).
300mm Focal-Length F/4 Constant Aperture
77mm Filter Thread AF with Quick-Shift
Pentax K Mount 1.5 Max Crop-Factor
1070g Lens Weight 83 x 184mm (D x L)
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