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

BH #PE3004DA • MFR #21760
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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Pentax DA* 300mm f/4 ED (IF) SDM Overview

  • 1Description
  • 2Designed for Digital SLRs
  • 3DA*-Series
  • 4SP Coating
  • 5Quick-Shift Focus
  • 6High Optical Quality

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) SDM Specs

Focal Length300mm (35mm Equivalent Focal Length: 450mm)
Maximum Aperturef/4
Minimum Aperturef/32
Lens MountPentax K
Format CompatibilityAPS-C
Angle of View5.4°
Minimum Focus Distance4.59' / 1.4 m
Close-Up Magnification0.24x
Optical Design8 Elements in 6 Groups
Diaphragm Blades9
Focus TypeAutofocus
Image StabilizationNo
Tripod CollarYes
Filter Size77 mm (Front)
Dimensions (ø x L)3.3 x 7.2" / 8.38 x 18.29 cm
Weight2.35 lb / 1.07 kg
Packaging Info
Package Weight3.75 lb
Box Dimensions (LxWxH)9.75 x 7.15 x 5.45"
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YOUR RECENTLY VIEWED ITEMS

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

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

question

Will the 1.4 Pentax teleconverter auto focus with the DA* 300 mm lens? I have read that with settings F4 and higher - auto focus won't work.
Asked by: Phyllis B.
Sorry for the late respoe. This message was in my 'junk' folder and I'm just seeing it now.anyway,..... fwiw, I have had no problems with AF when using the 1.4 converter together with the DA 300.good luck.
Answered by: Robert W.
Date published: 2021-01-01

question

Why this lens is not compatible with FF lens? 200, 300, and 560 are fully compatible with FF base on tests and those lenses were made base on FF film lenses
Asked by: Sun Kyong
B&H information is incorrect. It has been confirmed directly with Pentax and indirectly with practical usage by many users that this lens is in fact entirely compatible with a FF sensor.
Answered by: Kevin R.
Date published: 2019-05-04

question

If I mount this lens on a APC-S camera it will be 450mm?
Asked by: Anonymous
The crop factor of a Pentax with APS-C sensor is 1.5. The image of a 300mm lens on this sensor is equivalent to a 450mm lens image on a full-frame sensor. Please note that this Pentax 300mm DA lens is designed for APS-C sensor. If used on a full-frame sensor Pentax camera, the periphery of the image (i.e. outside of the cropped area) may be degraded and not as sharp.
Answered by: ABRAHAM W.
Date published: 2020-10-05
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