Model 07A
Adaptall-2 Symbol28~50mmF/3.5-4.5
Ultra-Compact CF Standard Zoom
Tamron Adaptall-2 28-50mm F/3.5-4.5 Model 07A Lens

Tamron Adaptall-2 28-50mm F/3.5-4.5 Model 07A: A wide angle to normal zoom lens with somewhat above average performance. The extremely compact optical design minimizes distortion at the wide angle settings and produces virtually zero distortion at the 50mm setting. This lens is notable for being very compact and will fit in most camera ever-ready cases. Optical performance at 28 mm is very good by F/8, yet remains slightly soft in the corners. Optical performance from 37mm to 50mm is very good across the field by F/5.6, with much better corner sharpness as well. Overall optimal aperture is F/11. While the performance isn't nearly as good as Tamron's SP 24-48, this lens was much less expensive and offered a perfect price versus performance ratio for amateur photographers. This lens also features continuous focusing (CF) into macro mode and reaches a 1:5 reproduction ratio at the 50mm setting.

Lens Specifications:

Lens Model 07A
Focal Length 28 — 50mm
Aperture Range f/3.5~4.5 — 32, AE
Angle of View 75°~47°
Optical Construction
(Groups / Elements)
9 / 9
Min. Focus from Film Plane 9.8" (0.25m) at f=50mm
Macro Mag. Ratio [w/2X Converter] 1:4 [1:2] at f=50mm
Filter Size 58mm
Diameter 2.5" (64.7mm)
Length at
[w/Nikon mount]
1.8" (46.2mm)
[2.0" (50.7mm)]
Weight 10.5 oz. (297g)
Lens Hood Push-on type #26FH, (optional extra).
Accessory Accepts F-system 2X tele-converter.
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