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Tamron 75-250 mm f/ 3.8-4.5 Adaptall-2 model 04A Lens

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Tamron 75-250 mm f/ 3.8-4.5 Adaptall-2 model 04A lens

Tamron 75-250 mm f/ 3.8-4.5 Adaptall-2 model 04A lens

Tamron 75-250 mm f/ 3.8-4.5 Adaptall-2 model 04A lens

Tamron 75-250 mm f/ 3.8-4.5 Adaptall-2 model 04A lens

Tamron 75-250 mm f/ 3.8-4.5 Adaptall-2 model 04A lens

Optical design

Tamron 75-250 mm f/ 3.8-4.5 Adaptall-2 model 04A optical design

Format: 35mm SLR

Type: Zoom lens

Focusing: Manual Focus (MF)

Lens mounts: Tamron Adaptall-2

First year of production: 1979

Last year of production: 1982

Optical design: 13 elements in 11 groups

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Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
75mm - 250mmf/3.8 - f/4.5f/3261.262870/30,7183/7,2

Additional information:

The Tamron 75-250 mm f/ 3.8-4.5 Adaptall-2 model 04A is a telephoto zoom lens 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.  You can see it in the 3rd photo. In order to estimate the lens size it is placed near the Tamron SP 35-80 mm f/ 2.8-3.8 with a fully extended lens barrel.

At a focal length of 250 mm the Tamron 75-250mm f/3.8-4.5 Adaptall-2 model 04A lens is capable of taking 1:3.5 macro scale pictures.

The second variant of the lens (model 104A) has been considerably redesigned and features improved optical characteristics.  Outwardly the lens has not changed.


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Posted by: Nik_SSG   Date of publication: 17.07.2011


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