{"id":5032,"date":"2008-06-03T20:00:00","date_gmt":"2008-06-03T20:00:00","guid":{"rendered":"http:\/\/dev.wordpress\/?p=5032"},"modified":"2008-06-03T20:00:00","modified_gmt":"2008-06-03T20:00:00","slug":"pentax-announces-17-70mm-f-4-lens","status":"publish","type":"post","link":"https:\/\/www.adorama.com\/alc\/pentax-announces-17-70mm-f-4-lens\/","title":{"rendered":"Pentax announces 17-70mm f\/4 lens"},"content":{"rendered":"

ad of the usual 3x for a kit lens. The 17-70mm lens is said to project an image that will cover an APSD-sized sensor, so it is not backwards compatible for use with Pentax film SLRs. The lens is compatible with the K20D, K200D<\/a>, K100D Super and K10D with Version 1.30 or later firmware installed, as well as earlier Pentax DSLR models. Features include a maximum f\/4 aperture over the entire zoom range, close focus to 11 inches, and two hybrid aspherical elements for claimed high image quality. The lens will ship in July and cost around $599.95.
\n


\nFor details, read the Pentax USA press release:
\n<\/i>


\nPENTAX Introduces smc PENTAX DA 17-70mm f\/4 AL SDM Lens<\/b>
\n


\nGOLDEN, Colo.–(BUSINESS WIRE)–PENTAX Imaging Company has introduced the smc PENTAX DA 17-70mm f\/4 AL SDM interchangeable zoom lens designed for exclusive use with PENTAX digital SLR cameras. This standard lens with extra zoom offers outstanding, well-balanced handling, and covers the most frequently used focal lengths between wide-angle and telephoto making it ideal for a variety of shots including scenery, snapshot and portraiture.
\n


\nPreviously shown in February at PMA 2008, this lens features a 4.1X zoom ratio covering wide-angle to moderate-telephoto ranges, and covers a focal-length range from 26mm wide angle to 107mm telephoto in the 35mm format. When mounted on a compatible(a) DSLR camera body, the PENTAX-original SDM system driven by a built-in supersonic motor, offers exceptionally smooth, quiet autofocus.
\n


\n(a) This lens is compatible with the K20D, K200D, K100D Super and K10D (with Ver. 1.30 or later firmware installed) and later PENTAX DSLR camera bodies. When mounted on other camera bodies, the focus mode is automatically switched to manual.
\n


\nDeveloped specifically for PENTAX digital SLRs,(b) this 17-70mm lens also features PENTAX SP (Super Protect) coating that protects the exposed lens elements and repels dust, water and grease. It also features a Quick-shift Focus System that allows instant switching from auto to manual focus with a turn of the focus ring.
\n


\n(b)SDM-only focusing lens may be used with non-SDM PENTAX DSLR bodies in manual focus mode.
\n


\nOther important features of this lens include:
\n


\nExceptional Image Clarity

\nIncorporating two hybrid aspherical (AL) optical elements, this zoom lens assures exceptional image quality while effectively compensating for various aberrations.

<\/p>\n

Maximum Aperture of f\/4 Over Entire Zoom Range

\nWith a maximum aperture of f\/4 over the entire zoom range, the lens allows photographers to use higher shutter speeds to minimize camera shake (especially in telephoto applications) or reduce the depth of field to intentionally throw the background out of focus.
\n


\nClose Minimum Focusing Distance

\nThis lens offers a minimum focusing distance of 11 inches (0.28 meters) over the entire zoom range, and an Inner-Focus (IF) optical design that eliminates lens extension and retraction during focusing operation.
\n


\nDigital SLR Optical Design

\nFrom lens coating and curvature to the positioning of optical elements, the lens optics are meticulously designed to optimize the lens’s digital imaging characteristics. The image circle is perfectly proportioned to a PENTAX camera’s image-sensor size.
\n


\nSPECIFICATIONS
\n

\nLens mount: PENTAX KAF3 mount

\nLens construction: 17 elements in 12 groups

\nAngle of view: 79(degree) – 23(degree) (with PENTAX D-SLR camera body)

\nNumber of diaphragm blades: 7

\nMinimum aperture: F\/22

\nMinimum focusing distance: 0.28m (0.92 ft.)

\nFilter size: 67mm

\nMaximum magnification: 0.31X

\nDimensions (diameter x length): 75mm x 93.5mm (3.0 inch x 3.7 inch)

\nWeight: 485g (17.1 oz.) without hood%3B 515g (18.2 oz.) with hood

\nThis PENTAX lens will ship in July 2008 at U.S. $599.95.

<\/p>\n","protected":false},"excerpt":{"rendered":"

ad of the usual 3x for a kit lens. The 17-70mm lens is said to project an image that will cover an APSD-sized sensor, so it is not backwards compatible for use with Pentax film SLRs. The lens is compatible with the K20D, K200D, K100D Super and K10D with Version 1.30 or later firmware installed, […]<\/p>\n","protected":false},"author":141,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-5032","post","type-post","status-publish","format-standard","hentry","category-trending"],"acf":[],"yoast_head":"\nPentax announces 17-70mm f\/4 lens - Adorama<\/title>\n<meta name=\"description\" content=\"ad of the usual 3x for a kit lens. The 17-70mm lens is said to project an image that will cover an APSD-sized sensor, so it is not backwards compatible for use with Pentax film SLRs. The lens is compatible with the K20D, K200D, K100D Super and K10D with Version 1.30 or later firmware installed, as well as earlier Pentax DSLR models. Features include a maximum f\/4 aperture over the entire zoom range, close focus to 11 inches, and two hybrid aspherical elements for claimed high image quality.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.adorama.com\/alc\/pentax-announces-17-70mm-f-4-lens\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pentax announces 17-70mm f\/4 lens - Adorama\" \/>\n<meta property=\"og:description\" content=\"ad of the usual 3x for a kit lens. The 17-70mm lens is said to project an image that will cover an APSD-sized sensor, so it is not backwards compatible for use with Pentax film SLRs. 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