Product Description
Tamron now offers a lightweight, compact, high-image-quality telephoto zoom lens with macro capability of 1: 2 that can be used with digital cameras. This new lens is a Di type lens using an optical system with improved multi-coating designed to function with digital SLR cameras as well as film cameras.With this 70-300mm telephoto zoom lens, flipping a macro switch in the focal length range of 180mm to 300mm obtains a maximum magnification ratio of 1: 2 at a minimum focus distance as short as 37.4″, enabling close-up shots of flowers, insects, and other objects that normally require the use of a specially designed macro lens. Moreover, this is a zoom lens that casually offers the distant capture and foreshortening effect pleasures of the 300mm ultra-telephoto world.Amazon.com Product Description
It’s never been easier to capture great action shots than with the Tamron AF 70-300mm macro lens. Delivering superior image quality for both digital SLRs and 35mm film cameras, this flexible lens lets you zoom in extra close when shooting moving subjects, such as athletes on the field or children running or playing. When used with a digital camera, the lens does even better, producing a super-telephoto 35mm equivalent of 465mm–unbeatable in almost any other lens.

Macro Switch
The lens offers an easy-to-use macro switch that lets you alternate between the 180mm and 300mm focal lengths, letting you enjoy true macro photography with a telephoto effect at a maximum magnification ratio of 1:2. The minimum focus distance, meanwhile, is 59 inches from the subject in normal shooting ranges, but when you flip the switch, you can get as close as 37.4 inches. And as an added bonus, the lens boasts a nine-blade circular diaphragm that provides beautiful soft-focus imagery for a professional result. Now you can showcase all your photographic talent with close-up shots of small flowers and insects in parks or in the wild, or any other beautiful small object you discover.

Coatings
Tamron has also adopted various countermeasures against ghosting and flare, common problems in digital photography. The lens employs internal surface coating and new multilayer coating technology to minimize reflections that occur when light enters through the front element, while also reducing image-degrading effects caused by the imagers themselves. The strictest quality control standards were also applied to increase resolution performance and prevent flare due to aberrations, resulting in a telephoto zoom lens ideal for photography with digital SLR cameras. This is one lens you can use with confidence.

• Lens construction: 9 groups and 13 elements
• Diagonal angle of view: 34 to 8 degrees (at 21 to 15 feet)
• Type of zooming: Rotation
• Diaphragm blade number: 9
• Minimum aperture: f/32
• Minimum focus distance: 59 inches in normal setting; 37.4 inches in macro mode
• Macro magnification ratio: 1:2
• Filter diameter: 62mm
• Accessory: Lens hood
• Dimensions: 3 inches in diameter and 4.6 inches long
• Weight: 15.3 ounces

• 70-300mm macro lens with f/4-5.6 maximum aperture for digital or 35mm cameras
• Easy-to-use macro switch lets you alternate between 180mm and 300mm focal lengths
• Minimum focus distance of 59 inches from subject (normal) or 37.4 inches (macro)
• 9-blade circular diaphragm provides beautiful soft-focus imagery; 62mm filter diameter
• Measures 3 inches in diameter and 4.6 inches long; weighs 15.3 ounces

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