탐론 SP AF70-200mm F/2.8 발매

탐론은,  「SP AF 70-200mm F2.8 Di [IF] MACRO(Model A001)」의 캐논용을 3월7일에 발매한다.(일본) 더불어 니콘/소니/펜탁스 용도 차례차례 발매될 예정이다.

이 렌즈는 2007년 3월에 개발 발표된 대구경 망원 줌 렌즈로 35mm 필름 카메라에 대응하고 있다.

캐논용과 니콘용은 포커스 링을 전후로 움직이는 방법으로 포커스 모드를 바꿀 수 있으며, 소니용과 펜탁스 용에서는 바디 측에서 변환 조작을 한다.

focusing이나 주밍 시 길이가 변화하지 않는 이너 줌 / 이너 포커스 기구를 채용하고 있으며, 렌즈 구성은 LD렌즈3매를 포함, 13군18매. 최단 촬영 거리는 줌 전역으로 0.95m이며, 최대 배율은1:3.1, 조임 날개는9매, 최소 조임은F32다.

본체 사이즈89.5×194.3mm(최대지름×전체 길이), 필터지름77mm, 중량1150g을 실현하고 있으며, 후드와 케이스가 부속된다.

가격은 10만 4,790엔으로 우리돈으로 환산하면 80만 원이 조금 넘는 수준으로 출발하고 있다.

January 28, 2008 Tamron Co., Ltd.

Tamron Announces the Launch of SP AF70-200mm F/2.8 Di LD (IF) MACRO (Model A001), a lightweight, high-performance and fast tele-zoom realizing 0.95m (ft) MOD over the Entire Zoom Range

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Mr. Morio Ono, President of Tamron Co., Ltd., has announced the launch of SP AF70-200mm F/2.8 Di LD (IF) MACRO (Model A001), a lightweight, high-performance and fast tele-zoom lens designed for DSLR cameras with 35mm full-size image sensors.

Product Name Date of Launch (in Japan) SP AF70-200mm F/2.8 Di (Model A001) for Canon and Nikon, Pentax, Sony For Canon (March 7, 2008) For Nikon, Pentax, Sony (to be determined)

The new SP AF70-200mm Di LD (IF) MACRO (Model A001) is an F/2.8 fast tele-zoom designed for DSLRs with 35mm full-size image sensors, inheriting product concept of the existing SP AF28-75mm F/2.8 XR Di (Model A09) that is highly acclaimed as a compact and fast standard zoom lens enabling photographers to enjoy high cost performance characteristics. While dimensional increases are confined to the absolute minimum, the new SP AF70-200mm F/2.8 Di LD (IF) MACRO zoom lens offers the MFD (minimum focusing distance) of 0.95m over the entire zoom range for the maximum macro magnification ratio of 1:3.1 at f=200mm focal length, for stress-free photography, combined with the advantage of an internal focusing (IF) system. It enables the user to cover a focal length range of 70mm medium telephoto to 200mm telephoto when mounted on a 35mm full-size DSLR camera and a focal length range from 109mm to 310mm equivalent* ultra telephoto (35mm equivalent, in an angle of view of 7°59') when mounted on a DSLR camera equipped with an APS-C sized image sensor. (*) Tamron's conversion ratio is 1.55x.

MAIN FEATURES

1. 0.95m MFD over the Entire Zoom Range for 1:3.1 Maximum Magnification Ratio This zoom lens, designed for use with full-size format SLR cameras, boasts a fast maximum aperture of F/2.8, yet it allows close-focusing down to 0.95m over the entire zoom range. The maximum magnification ratio is 1:3.1 at the 200mm tele-end. The filter diameter is confined to ƒÓ77mm as a result of the use of an advanced optical design pursuing optimum optical power distribution.

2. Soft Out-of-Focus Effect and Sharp Depiction In order to realize soft out-of-focus effect and sharp depiction performance at the same time, the zoom lens uses three LD (low dispersion) elements. As a result, the optical system effectively compensates for lateral and on-axis chromatic aberrations that are major image-degrading factors in telephoto photography, in order to provide edge-to-edge sharpness and high-contrast image quality with flat-field characteristics over the entire zoom range in various photographic situations.

3. Lightweight, yet Fast F/2.8 Maximum Aperture The lens features a fast maximum aperture of F/2.8, yet it weighs a mere 1,112.6 grams (39.2oz.), since it uses barrel parts made of engineering plastic materials having excellent dimensional stability and sufficient strength for professional use and even industrial applications.

4. Internal Surface Coatings Minimize Ghosting and Flare Through the use of "Internal Surface Coatings (i.e., multiple-layer coatings on cemented surfaces of plural elements) and multiple-layer coatings to prevent reflections from lens surfaces, ghosting and flare due to reflections that occur when light enters through the front element as well as reflections caused by the imager itself in the mirror box are reduced to the absolute minimum.

5. One-touch AF/MF Switchover Mechanisms (for Canon and Nikon only) The models for Nikon and Canon cameras are equipped with AF/MF switchover mechanisms to allow one-touch switchover from AF mode to MF mode or vice versa electronically and mechanically by simply sliding the button. (Sony and Pentax systems require AF/MF switchover operation on both the camera and lens.) Since the lens uses an IF (internal focusing) system, the focusing ring does not rotate during focusing, which ensures good holding balance at all times. In the MF mode, focusing is performed as easily and comfortably as with an MF lens. Since the overall length of the lens does not change due to zooming or focusing, it offers excellent operability and holding balance.

6. Detachable Tripod Grip Ring The lens is supplied with a lightweight and rigid aluminum removable tripod socket.

7. Flower-shaped Lens Hood A flower-shaped lens hood is included as a standard accessory. The special hood provides optimum shading of superfluous light rays that enter from the rectangular frame outside the image field.

SPECIFICATIONS Model Name A001 Focal Length 70-200mm Maximum Aperture F/2.8 Angle of View 34°21'-12°21' Lens Construction 18 elements in 13 groups Minimum Focus Distance 0.95m (over the entire zoom range) Maximum Mag. Ratio 1 : 3.1 (at f=200mm : MDF 0.95m) Filter Diameter φ77mm Overall Length 194.3mm * Maximum Diameter φ89.5mm Weight 1,150g *(without tripod mount) Diaphragm Blades 9 blades Minimum Aperture F/32 Standard Accessory Flower-shaped lens hood, lens case Compatible Mount for Canon, Nikon, Pentax, Sony

* The cosmetic design and specs are subject to change without notice. * Values given are for Nikon AF-D cameras.