탐론 광각줌렌즈 SP AF 10-24mm 개발발표

탐론은 디지털 전용의 광각 줌 렌즈 SP AF 10-24mm F3.5-4.5 Di II LD Aspherical[IF](Model AB001)를 개발했다고 홈페이지를 통해 발표했다.

이 제품은 2005년도에 선보였던 SP AF 11-18mm F4.5-5.6 Di II LD Aspherical [IF] (Model A13) 의 후속격인 모델, 광각을 10mm로 더 넓히고 망원도 증가시켰다. 더불어 조리개 값도 F3.5-F4.5로 더 밝아졌으며 무게도 370g으로 콤팩트하다.

35mm로 환산하면 15-36mm가 되며 최단 촬영 거리는 24cm수준으로 근접 촬영 능력이 뛰어나 광각 근접 촬영으로 재미있는 사진 연출이 가능하다. 최대 촬영 배율은 1:5.1, 조임날개는 7매, 필터 사이즈는 77mm다.

이 렌즈는 니콘,캐논,소니,펜탁스 마운트로 선보일 예정이며 가격과 발매 시기는 아직 정해지지 않았다.

January 31, 2008 Tamron Co., Ltd.

TAMRON DEVELOPS SP AF10-24MM F/3.5-4.5 DI II LD ASPHERICAL (IF) (MODEL AB001)

A New High Performance Zoom Lens Designed for Exclusive Use on Digital SLR Cameras Covering the Ultra Wide-Angle Range

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Mr. Morio Ono, President of Tamron Co., Ltd., announced the development of the SP AF10-24mm F/3.5-4.5 Di II LD Aspherical (IF) (Model AB001), a new high performance ultra wide-angle zoom lens designed exclusively for digital SLR cameras with APS-C size imagers.

Product Name Date of Launch in Japan SP AF10-24mm F/3.5-4.5 Di II LD Aspherical [IF] (Model AB001) for Canon, Nikon, Sony and Pentax to be determined * “Di (Digitally-Integrated design)-II” lenses are designed for exclusive use on digital cameras with smaller-size imagers. * This lens is not designed for use with 35mm film cameras and digital SLR cameras with image sensors larger than 24mm x 16mm. The new SP AF10-24mm F/3.5-4.5 Di II LD Aspherical (IF) is an advanced ultra wide-angle zoom lens that is versatile and offers even higher performance and specifications than the current Tamron SP AF11-18mm F/4.5-5.6 zoom lens. The lens covers an extended focal length range that is particularly wide for an ultra wide-angle zoom lens, while improving the aperture to F/3.5-4.5 and keeping the filter diameter to 77mm. Its lightweight and compact size makes this new wide-angle zoom very user friendly. The lens was designed for use with digital SLR cameras and thereby employs special optical glass materials for outstanding optical performance such as large-aperture glass-molded aspherical elements and hybrid aspherical elements.

MAIN FEATURES

1. Compact Ultra Wide-angle Zoom Lens Covering a Broad Range from 10mm to 24mm The new Tamron zoom covers a focal length range equivalent to 16-37mm* when converted to a 35mm full-size format. Its ultra-wide zoom ratio of more than 2X provides a versatile variety of angles of view, thus improving photographic creativity. *Tamron’s conversion ratio is 1.55x.

2. Features an Optical Design Optimized for Digital Camera Characteristics Ensures High Optical Performance (1) Employment of Special Optical Glass Materials Provides High Performance The new zoom lens uses an HID glass element and a pair of LD glass elements to minimize on-axis and lateral chromatic aberrations that are the greatest hindrance to high optical quality. To further achieve outstanding optical quality, the lens uses a high quality, glass-molded aspherical element and three hybrid aspherical elements to thoroughly compensate for spherical and comatic aberrations and distortion. * HID - High Index/High Dispersion optical glass * LD - Low Dispersion optical glass (2) Optical Design Optimizes the Angles of Incidences of Light Rays Reaching the Imager The ultra wide zoom lens uses a new optical system designed to confine the changing angles of incidences of light rays reaching the imager within a certain scope over the entire image field from the center to the periphery, by considering the effects of variances due to zooming. (3) Enhanced Peripheral Illumination Peripheral light fall-off is minimized so that images are high quality from the center to the periphery. (4) Outstanding Resolution As an SP Di II class lens, it provides high optical quality in terms of resolution, contrast and flatness of image field. (5) Internal Surface Coating Reduces Ghosting and Flare The lens uses a newly developed multiple coating and internal surface coating, (i.e., multiple-layer coatings on cemented surfaces of plural lenses) to reduce the image degradation caused by the reflection of light rays entering from the lens front and affected by the imager.

3. Ultra Compact and Lightweight Design The new zoom lens covers a wider focal length range with a greater zoom ratio and offers a faster maximum aperture and enhanced optical quality than the existing SP AF11-18mm zoom lens. Despite higher specifications that are likely to incur a bulky design, the new zoom lens is lightweight and compact. Tamron has successfully realized a versatile ultra wide-angle zoom lens that is lightweight and compact enough in overall length and diameter to accept a 77mm filter, the same as the existing SP AF11-18mm zoom lens.

4. Minimum Focus Distance of 0.24m throughout the Entire Zoom Range Considering the importance of “close focusing capability” as an essential condition in wide-angle photography, Tamron has achieved a 0.24m minimum focus distance over the entire zoom range. Getting closer to the subject allows you to easily express a more creative photographic vision.

5. Flower-shaped Lens Hood A glare-reducing 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.

6. New External Design Conveying “High Performance, High Precision Image” on the Basis of Tamron’s Conventional Lens Design The external design is improved to enhance the uniformity and smoothness. The metallic finish of the gold band of Tamron lenses makes it stand out as a Di II lens, while the layout of alphanumerical markings is improved for better visibility. The rubber patterns of the zoom and focus rings have also been improved to compliment today’s digital camera design style and to provide better handling.

SPECIFICATIONS Model Name AB001 Foal Length 10-24mm Maximum Aperture F/3.5-4.5 Angle of View 108° 44' - 60° 20' (APS-C size equivalent) Lens Construction 12 elements in 9 groups Minimum Focusing Distance 0.24m (Over the entire zoom range) Maximum Mag. Ratio 1:5.1 (at f=24mm) Filter Diameter φ77mm Overall Length 86.5mm (3.4”)* Maximum Diameter φ83.2mm (3.3”)* Weight 370g (13.1oz)* Diaphragm Blades 7 blades Minimum Aperture F/22 Standard Accessory Flower-shaped Lens Hood Compatible Mount Canon, Nikon, Pentax, and Sony

*Values give are for Nikon cameras.