Model 104A
Adaptall-2 Symbol75~250mmF/3.8-4.5
CF Tele-Macro Zoom
Tamron Adaptall-2 75-250mm F/3.8-4.5 Model 104A Lens

Tamron 75-250mm F/3.8-4.5 Model 104A: This is a fairly lightweight and very nice handling zoom lens with above average performance. Additional features include a built-in lens hood and continuous focusing into macro mode. This lens, introduced in 1981, replaces the earlier model 04A with a heavily revised optical design. Note that this lens, cosmetically, is very similar in appearance to the earlier model 04A lens. It is very hard to tell these two lens versions apart unless you look at the model number engraved on the lens.

Lens Specifications:

Lens Model 104A
Focal Length 75 — 250mm
Aperture Range f/3.8~4.5 — 32, AE
Angle of View 32°~10°
Optical Construction
(Groups / Elements)
10 / 13
Min. Focus from Film Plane 47.2" (1.2m)
Macro Mag. Ratio [w/2X Converter] 1:3.4 [1:1.7]
Filter Size 62mm
Diameter 2.8" (71mm)
Length at
[w/Nikon mount]
6.8" (172mm)
[6.9" (176.5mm)]
Weight 30.2 oz. (856g)
Lens Hood Built-in type, retractable.
Accessory Accepts SP 2X tele-converter #01F.
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