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Pentax SMCP-DA* 300mm f/4 ED (IF) SDM Autofocus Lens for Digital SLR

BH #PE3004DA • MFR #21760
70 reviews
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Pentax SMCP-DA* 300mm f/4 ED (IF) SDM Autofocus Lens for Digital SLR
Key Features
  • Weather & Dust Resistant
The Pentax SMCP-DA* 300mm f/4 ED (IF) SDM Lens is a high-quality telephoto lens that is designed for exclusive use with Pentax digital SLR cameras. It offers a focal length that is equivalent (in 35mm format) to 450mm. This wide coverage is ideal for a variety of telephoto applications, including portraiture, sports and scenery.

Pentax DA* (DA-Star) zoom lenses come equipped with the SDM System, which assures smoother, quieter auto-focusing operation by using a built-in supersonic motor. When mounted on the K10D digital SLR camera body, the focus mode is automatically switched to SDM-assisted auto-focusing. When mounted on older Pentax digital SLR camera bodies, the conventional autofocus mode using a camera-mounted motor is selected.

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WARNING: Not compatible with "full-frame" (35mm size) cameras.
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Pentax DA* 300mm f/4 ED (IF) SDM Overview

The Pentax SMCP-DA* 300mm f/4 ED (IF) SDM Lens is a high-quality telephoto lens that is designed for exclusive use with Pentax digital SLR cameras. It offers a focal length that is equivalent (in 35mm format) to 450mm. This wide coverage is ideal for a variety of telephoto applications, including portraiture, sports and scenery.

Pentax DA* (DA-Star) zoom lenses come equipped with the SDM System, which assures smoother, quieter auto-focusing operation by using a built-in supersonic motor. When mounted on the K10D digital SLR camera body, the focus mode is automatically switched to SDM-assisted auto-focusing. When mounted on older Pentax digital SLR camera bodies, the conventional autofocus mode using a camera-mounted motor is selected.

Like all Pentax lenses, this lens is treated with smc coating for maximum light transmission, sharp definition, and high contrast images. In addition, SP (Super Protective) coating made of a special fluoride compound has been applied to the front surface of the lens through the use of a unique evaporation process. As a result, the lens offers excellent water- and oil-repellent performance and makes for easier cleaning should the lens be accidentally smeared with fingerprints or cosmetics.

Note:
Not compatible with "full-frame" (35mm size) cameras
Designed for Digital SLRs
The image circle in DA-series lenses is designed to perfectly match the 23.5mm x 15.7mm size of the CCD used in Pentax digital SLRs to optimize camera performance. This design also contributes to a drastic reduction in size, weight and production cost, compared to 35mm-format counterparts with similar specifications.
DA*-Series
DA*-series lenses feature tightly sealed, weather-resistant and dust-resistant construction that enhance durability for use in rain or dusty conditions.
SP Coating
SP (Super Protective) coating made of a special fluoride compound has been applied to the front surface of the lens to offer excellent water- and oil-repellent performance.
Quick-Shift Focus
Quick-Shift Focus System allows to instantly switch the focus mode from AF to manual with a slight twist of the focus ring.
High Optical Quality
Incorporates Extra-low Dispersion (ED) glass lens elements to compensate for chromatic aberration.
UPC: 027075141261

Pentax DA* 300mm f/4 ED (IF) SDMSpecs

Key Specs
Focal Length
300mm (35mm Equivalent: 450mm)
Maximum Aperture
f/4
Lens Mount
Pentax K
Lens Format Coverage
APS-C
Focus Type
Autofocus
Image Stabilization
No
Filter Size
77 mm (Front)
Maximum Aperture
f/4
Minimum Aperture
f/32
Lens Mount
Pentax K
Lens Format Coverage
APS-C
Angle of View
5.4°
Minimum Focus Distance
4.59' / 1.4 m
Maximum Magnification
0.24x
Optical Design
8 Elements in 6 Groups
Diaphragm Blades
9
Focus Type
Autofocus
Image Stabilization
No
Tripod Collar
Yes
Filter Size
77 mm (Front)
Dimensions (ø x L)
3.3 x 7.2" / 8.38 x 18.29 cm
Weight
2.35 lb / 1.07 kg
Packaging Info
Package Weight
3.75 lb
Box Dimensions (LxWxH)
9.75 x 7.15 x 5.45"

Pentax DA* 300mm f/4 ED (IF) SDM Reviews

See any errors on this page? Let us know

Are there any scratches on the front or rear ...

Are there any scratches on the front or rear glass elements?
Asked by: Stephen
The Pentax SMCP-DA* 300mm f/4 ED (IF) SDM Autofocus Lens for Digital SLR is a brand-new lens with a 1-year warranty--it's in perfect condition with no scratches anywhere.
Answered by: Boyd H
Date published: 2023-03-23

Is the tripod collar removable?

Is the tripod collar removable?
Asked by: Craig
The tripod collar on the Pentax SMCP-DA* 300mm f/4 ED (IF) SDM Autofocus Lens for Digital SLR is removable.
Answered by: Lawrence C
Date published: 2023-04-20

question

Does this item come with tripod mounting bracket?
Asked by: Anonymous
Yes, a tripod mounting ring is included with this lens.
Answered by: Kirk
Date published: 2019-09-03

question

If I use this 300mm f/4 SDM lens on my Pentax K-x DSLR body, does it matter whether the camera is set to AF or MF? Will the choice of manual vs. auto focusing always be determined by the AF/MF setting on the lens? I am confused about the focusing behavior of the camera body and lens combination since both have an AF/MF switch.
Asked by: Anonymous
The focus controls are typically determined by the settings on the lens.
Answered by: Heather S.
Date published: 2020-10-05

Does it accurately autofocus throughout the ...

Does it accurately autofocus throughout the expected range?
Asked by: Stephen
Yes Pentax SMCP-DA* 300mm f/4 ED (IF) SDM Autofocus Lens for Digital SLR can autofocus well as close as 4.59 feet to infinity.
Answered by: Daniel C
Date published: 2023-03-21

question

Does this come with a case?
Asked by: Anu G.
It comes with a soft case
Answered by: Sebastian D.
Date published: 2018-08-27

question

Given the warning I am assuming this won't work with the new Pentax K-1?
Asked by: Gerald
I am using the 300mm f/4 with a 3-year old Pentax K-01 and they work great together. The only minor problem is that with that big lens in autofocus mode it uses the battery pretty quickly. I just keep a spare battery handy.
Answered by: Robert Y.
Date published: 2018-08-27

question

does this work with the pentax 645d?
Asked by: steven d.
No. This lens is designed to cover the APS-C image format, so larger formats such as full-frame or 645 will be vignetted.
Answered by: Doyal H.
Date published: 2018-08-27
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