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Pictures
Optical design
| Format: 35mm SLR
Type: Zoom lens
Focusing: Manual Focus (MF)
Lens mounts: Tamron Adaptall-2
First year of production: 1980
Last year of production: 1984
Optical design: 13 elements in 10 groups
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Specifications:
| Focal length | Max. aperture | Min. aperture | Blades | Min. Focus (m.) | Filter Ø (mm.) | Weight (gr/oz) | Length (mm/in) |
|---|
| 70mm - 150mm | f/3.5 | f/32 | | 0.7 | 49 | 459/16,2 | 103.5/4,1 |
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Additional information:
The Tamron 70-150 mm f/ 3.5 Adaptall-2 model 20A is a telephoto zoom lens with constant lens speed for 35 mm SLR cameras popular in the 1970-90s (via the interchangeable Adaptall-2 mount).
The lens features a push-pull design (focal length is changed by pushing or pulling the focus ring, and in so doing the lens length is changing). It is multicoated. The lens is equipped with a built-in hood.
At a focal length of 70 mm it enables you to take 1:3 macro scale pictures.
As compared with the first variant (model 02А), the lens has been considerably redesigned and features improved optical characteristics.
Links to online resources:
Posted by: Nik_SSG Date of publication: 17.07.2011
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