Minolta AF 70-210mm f/4 lens
|Minolta 70-210mm f/4 Macro|
|Aperture (max/min):||f/4 - f/32|
|Construction:||9 groups / 12 elements|
|# Diaphragm blades:||7 blades, straight|
|Close focus distance:||1.1 m|
|Max. length:||168 mm|
|Filter diameter:||55 mm|
|Lens hood:||Metal or plastic clip-on|
|Angle of view|
|MSRP US$||As of 2009, frequently available second-hand on auction websites at prices ranging between £120 and £150.|
The Minolta AF 70-210mm f/4 lens is an autofocusing telephoto photographic lens compatible with cameras using the Minolta AF lens mount. The lens is colloquially known as the "beercan" by Minolta camera users because the lens shape and size closely match the proportions of a typical aluminum beer can.
It was introduced in 1985 at the launch of the Minolta Maxxum/Dynax/Alpha 7000 camera (the first widely successful autofocus SLR) and remained in production for many years. Two years earlier, the lens had been introduced as a one-touch zoom in the manual-focus Minolta SR mount (as a "plain" MD lens). However, production slowed and then eventually stopped for both the AF and MD versions; its successors, the 70-210/3.5-4.5 and 70-210/4.5-5.6 had none of the qualities of the original and build and image quality decreased.
It remains popular, however, for use on digital single lens reflex cameras using the AF system, such as the Konica-Minolta Maxxum 7D or the Sony α. Although relatively bulky and weighty, the lens is valued for its solid build, sharpness, constant maximum aperture and smooth bokeh effect, though it suffers from more pronounced aberrations than equivalent modern designs. It provides a 1:4 magnification (at minimum focus, an object records at 1/4 its size on film or sensor).
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