ameras. A true macro lens, the AF90 is capable of 1:1 magnification, and accepts 55mm filters. The lens will be launched during Photokina.
For details and specifications, read the Nikon Japan press release:
Tamron SP AF90mm F/2.8 for Nikon
Tamron Co., Ltd (Mr. Morio Ono, President) has successfully renewed the existing SP AF90mm F/2.8 for Nikon and is now pleased to announce the availability of the lens with a built-in AF motor for Nikon. (The lens is already available in mounts for Canon, Pentax and Sony.)
Tamron’s SP 90mm lens has been highly evaluated by photographers all over the world not only as a high-performance macro lens but also as a medium telephoto lens suitable for all photographic applications including landscape and portraiture. The SP 90mm F/2.8 macro lens, first introduced in 1979, underwent a major model change in 2004 to feature a Digitally Integrated (Di) design while retaining its renowned optical performance
MAIN FEATURES
Outstanding Image Quality by Virtue of “Di” (Digitally Integrated) Design
The lens provides outstanding image quality whether the medium in use is silver halide (film) or a digital image sensor, since it features Tamron’s “Di” optical system designed to meet the performance characteristics of digital cameras as well as film cameras.
Features Coatings Optimized for Digital Photography
One major difference between digital cameras and film cameras is how internal reflections in mirror boxes may occur and to what extent. These internal reflections can cause unwanted flare or ghosting on the final image. In a film camera, internal reflections can be caused inside the mirror box of the camera or from light reflecting off the film surface. In a digital camera, stronger reflections can occur from light bouncing off the sensor, since CCD and CMOS sensors are almost mirror-like on their surface, making the problem more noticeable. The SP AF90mm F/2.8 Di lens features an improved coating technology that reduces to the absolute minimum the reflections that are likely to cause this issue.
Angle of View Ideal for Film and Digital Photography
The SP AF90mm lens offers a medium telephoto focal length making it particularly useful as a portrait/macro lens when used with a full-size sensor or film camera. When used on a digital SLR camera (with an APS-C sized image sensor), the lens provides an angle of view equivalent to that of 140mm (35mm-equivalent), so it can be used conveniently as a telephoto macro lens for digital photography.
Lightweight and Compact Design
The SP AF90mm is a 1:1 life-size macro lens for which outstanding optical performance is required, yet it uses engineering plastic materials for its barrel parts. As a result, the lens is the most lightweight medium telephoto lens* among 1:1 life-size macro lenses in the AF90-100mm class, realizing portability and high image quality at a superior level.
* Weight value of Nikon AF-fit model compared to other makes
AF/MF Switchover in Single Action
The lens features a mechanism to allow speedy AF/MF switchover in a single action. The rubber pattern on the intentionally wide focus control ring ensures a better grip, making use comfortable since macro lenses are frequently used in the manual focusing mode.
* The AF mode does not function when the NII mount is used with the early AF cameras with the built-in AF motor.
* Only the MF mode is available.The NII mount in the Di series are not equipped with an aperture ring. Accordingly, there may be some limitations and restrictions upon using.
* Please refer to our HP http://www.tamron.co.jp for more details.
SPECIFICATIONS
Model Name: 272E
Focal Length: 90mm
Maximum Aperture: F/2.8
Angle of View: 27°
Lens Construction: 10 elements in 9 groups
Minimum Focus Distance: 0.29m (11.4 in.)
Maximum Mag. Ratio: 1 : 1
Filter Diameter: 55mm
Overall Length: 97mm(3.8 in.)*
Maximum Diameter: 71.5mm (2.8 in.)*
Weight 405 grams: (14.3 oz.)*
Diaphragm Blades: 9 blades
Minimum Aperture: F/32
Standard Accessory: Lens hood, soft case
Mount: For Nikon (with built-in AF motor)
(The lens is already available in mounts for Canon, Pentax and Sony.)
* The overall length and weight are values of a Nikon-fit lens.
