Pentax DA* 300mm lens

Last updated
smc PENTAX-DA* 1:4 300mm ED [IF] SDM
Pentax300TeleLens.jpg
Maker Pentax
Technical data
Type Prime
Focal length300mm
Focal length (35mm equiv.)450mm
Aperture (max/min)f/4 / f/32
Close focus distance140 centimetres (55 in)
Max. magnification0.24x
Diaphragm blades9
Construction8 elements in 6 groups
Features
Manual focus override Yes check.svg Yes
Ultrasonic motor Yes check.svg Yes
Weather-sealing Yes check.svg Yes
Unique featuresQuick-shift focus, SP (Super Protect) coating, filter window, detachable tripod mount
ApplicationSupertele
Physical
Max. length184 millimetres (7.2 in)
Diameter83 millimetres (3.3 in)
Weight1,070 grams (38 oz)
Filter diameter77mm
Accessories
Lens hoodPH-RBK 77 mm
Angle of view
Diagonal5.4 °
Retail info
MSRP 1,399.95 USD

The smc PENTAX-DA* 1:4 300mm ED [IF] SDM is a supertele prime lens for Pentax K-mount. It uses Pentax' silent SDM motor for autofocus on compatible cameras (K10D [1] and K200D upwards), and has Quick Shift Focus to allow manual adjustments in autofocus mode.

Contents

Reception

Photozone reviewed the lens favourably, stating, "in terms of resolution and contrast the lens is able to produce very good results straight from the max. aperture setting" and "mechanical quality of the lens is absolutely exceptional thanks to high quality materials and seals against dust and moisture". Of the ultrasonic autofocus motor, they wrote that it "works like a breeze - it's both fast and almost silent." Overall, they concluded that the lens is "highly desirable lens for sports and wildlife photographers." [2]

ColorFoto wrote the lens had outstanding sharpness over the entire frame, even wide open, [3] and PopPhoto.com said that "images shot in the field were satisfyingly contrasty and sharp." [4]

Related Research Articles

Pentax K-mount lens mount used by Pentax and others

The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, and has since been used by all Pentax 35 mm and digital SLRs and also the MILC Pentax K-01. A number of other manufacturers have also produced many K-mount lenses and K-mount cameras.

Pentax K10D digital camera model

The Pentax K10D and similar Samsung GX-10 are 10.2 megapixel digital single-lens reflex cameras launched in late 2006. They were developed in a collaboration between Pentax of Japan and Samsung of South Korea.

Pentax ME F digital camera model

The Pentax ME F was an amateur level, interchangeable lens, 35 mm film, single-lens reflex (SLR) camera. It was manufactured by Asahi Optical Co., Ltd. of Japan from November 1981 to 1984. The ME F was a heavily modified version of the Pentax ME-Super, and a member of the Pentax M-series family of SLRs. It was the first mass-produced SLR camera to with an autofocus system.

Lenses for SLR and DSLR cameras

This article is about photographic lenses for single-lens reflex film cameras (SLRs) and digital single-lens reflex cameras (DSLRs). Emphasis is on modern lenses for 35 mm film SLRs and for DSLRs with sensor sizes less than or equal to 35 mm ("full-frame").

This article discusses the cameras – mainly 35 mm SLRs – manufactured by Pentax Ricoh Imaging Corp. and its predecessors, Pentax Corporation and Asahi Optical Co., Ltd..

Pentax (lens) photographic lenses sold under the Pentax brand

Pentax lenses were first badged as Takumar. The Takumar branded lenses were well respected for their line of Super Takumar, which designated the high performance coating applied to the lens as well as the optical formulas used to make them. The majority of the industry at the time was still satisfied with the variations of the "plumb" coating process and later some of the two and three layer processes as well. Asahi Pentax soon introduced the Takumar Super-Multi-Coated line of lenses which was a 7 layer process as the industry had just caught up with similar forms of 5 layer multi-coated optics. Eventually Asahi Optical and Pentax slowly shifted much of their lens production under the Pentax name and transitioned some of the successful designs that were first introduced under the Takumar name to use Asahi/Pentax badging as well as beginning to use the "smc" abbreviation. Eventually the Asahi partnership disappeared and the Pentax name became solely used. Pentax lenses saw many feature changes to answer the market, such as: incorporating "Auto-Aperture" with the M42, the light weight and compactness with the 'M' series, Aperture Priority overrides with the 'A' series, and Auto-Focus with the 'F' series. Modern Pentax lenses for digital SLR cameras have seen the elimination of the aperture ring completely as found on Pentax DA and D-FA series lenses. They use the Pentax KAF mount. All of these lenses have an autofocus feature, either operated from the camera body or from an internal SDM motor. Pentax compatible lenses are also made by third-party companies.

Pentax DA 18-55mm lens

The SMC Pentax-DA 18-55mm f/3.5-5.6 AL lens is a standard zoom lens for the Pentax K-mount. It is often sold as a kit lens with Pentax digital SLR cameras and has a 35mm equivalent focal length of 27-82.5mm. Its optical formula is made of 12 elements in 9 groups. There are two variants of this lens:

The smc Pentax-DA* 55mm f/1.4 SDM lens is a professional prime lens for the Pentax K-mount. It is designed for portrait use with a 35mm equivalent focal length of 82.5mm. The lens features weather sealing, an SDM ultrasonic motor for quiet autofocus, and has 9 rounded diaphragm blades for smoother bokeh. Autofocus speed is similar to an equivalent screwdrive lens.

Pentax 645

The Pentax 645 is a medium format single-lens reflex system camera manufactured by Pentax. It was introduced in 1984, along with a complementary line of lenses. It captures images nominally 6 cm × 4.5 cm on 120, 220, and 70 mm film, though the actual size of the images is 56 mm × 41.5 mm.

Pentax DA 10-17mm lens

The smc Pentax-DA 10-17mm f/3.5-4.5 ED (IF) Fish-Eye lens is a fisheye zoom lens for the Pentax K-mount. It offers an up to 180 degree view, and allows quick shift focus.

The SMC Pentax-DA 50mm f/1.8 lens is a normal prime lens for the Pentax K-mount. The 75mm equivalent focal length on APS-C cameras and fast f/1.8 aperture make it well suited for portrait photography. It uses a simple double-Gauss design of 6 elements in 5 groups.

The HD Pentax DA 55-300mm lens, is a telezoom lens line for the Pentax K-mount. There are 4 generations so far.

Pentax FA 31mm Limited lens

The SMC Pentax-FA 31mm f/1.8 AL Limited is a full-frame moderate wide-angle lens for Pentax K-mount. On an APS-C camera, it gives a normal field of view. It lacks Quick Shift Focus, which is now found on most other Pentax lenses, and therefore does not allow manual focusing while in autofocus mode.

Pentax K-S2 digital camera model

The Pentax K-S2 is a weather-sealed digital SLR camera announced by Ricoh on February 9, 2015. It is the first Pentax SLR to feature an articulated LCD, and it is the smallest DSLR to include this feature and also be weather-sealed. In 2015, the K-S2 won the TIPA Award in the category Best Digital SLR Advanced.

Pentax K-3 II digital camera model

The Pentax K-3 II is a flagship APS-C DSLR camera announced by Ricoh on April 22, 2015.

The HD Pentax-DA 20-40mm F2.8-4 ED Limited DC WR is an advanced standard zoom lens for Pentax APS-C DSLR cameras announced by Ricoh on November 6, 2013. Being part of Pentax's Limited series, it features a metal barrel and a comparably small form factor. Within the Limited series, it is the first zoom lens as well as the first lens to feature a silent built-in autofocus motor (DC) and weather resistance (WR).

The Pentax smc DA* 50-135mm F2.8 ED (IF) SDM is an interchangeable camera lens announced by Pentax on February 21, 2007.

The Pentax smc DA* 200mm F2.8 ED (IF) SDM is an interchangeable tele lens for Pentax K-mount, announced by Ricoh on January 23, 2008.

The HD Pentax-D FA* 50mm f/1.4 SDM AW lens is a professional normal prime lens for the Pentax K-mount. The lens was officially announced on October 27th 2017, launched on June 28th 2018 and first shipped on July 26th 2018.

References

  1. "PENTAX K10D - Übersicht - RICOH IMAGING DEUTSCHLAND GMBH".
  2. "Pentax SMC DA* 300mm f/4 ED [IF] SDM - Review / Test Report".
  3. "Colorfoto.de Pentax SMC-DA* 4/300 mm ED IF SDM an Pentax K20D - PC Magazin".
  4. "Lens Test: Pentax 300mm f/4 SMCP-DA* ED IF SDM AF".