TAMRON
Model 22A
High Ratio
CF Macro
Zoom
Adaptall-2 Symbol35~135mmF/3.5-4.2
High Ratio CF Macro Zoom
Tamron Adaptall-2 35-135mm F/3.5-4.2 Model 22A Lens

Tamron Adaptall-2 35-135mm F/3.5-4.2 Model 22A: A moderate wide angle to moderate telephoto zoom lens with above average optical performance. This lens features continuous focusing (CF) into macro mode with 1:4 macro magnification at the 135mm setting. Maximum aperture varies from F/3.5 at 35mm to F/4.2 at 135mm. The floating element optical design and mechanical construction is somewhat similar to Tamron's SP 28-135 model 28A with the exception of the macro mechanism. Introduced in 1982, this lens was replaced in 1985 with the less expensive and more compact model 40A lens which features a new optical design requiring less complex mechanical construction. The later model 40A lens discarded this model's CF macro ability and instead uses a macro button and macro helicoid, similar to the SP 28-135, to enter the macro mode at the 35mm setting. Both lenses have above average optical performance.

Lens Specifications:

Lens Model 22A
Focal Length 35 — 135mm
Aperture Range f/3.5~4.2 — 32, AE
Angle of View 63°~18°
Optical Construction
(Groups / Elements)
12 / 14
Min. Focus from Film Plane 31.5" (0.8m) at f=135mm
Macro Mag. Ratio [w/2X Converter] 1:4 [1:2] at f=135mm
Filter Size 67mm
Diameter 2.9" (72.4mm)
Length at
[w/Nikon mount]
4.1" (105mm)
[4.3" (109.5mm)]
Weight 22.0 oz. (625g)
Lens Hood Bayonet type #45FH, (optional extra).
Accessory Accepts SP 2X tele-converter.
Tamron 35-135 F/3.5-4.2
F/no. RESOLUTION
at 35mm
at 1:49 magnification
CONTRAST
at 35mm
(30 lines/mm)
Center
Lines/mm
Corner
Lines/mm
Center % Corner %
3.5 49 39 44 50
5.6 49 44 58 63
8 55 44 58 66
11 49 44 59 62
16 49 39 50 58
22 44 35 44 50
32 39 31 37 42
Tamron 35-135 F/3.5-4.2
F/no. RESOLUTION
at 80mm
at 1:50 magnification
CONTRAST
at 80mm
(30 lines/mm)
Center
Lines/mm
Corner
Lines/mm
Center % Corner %
3.5 45 35 40 34
5.6 56 45 67 40
8 56 45 68 55
11 50 50 60 54
16 50 45 54 50
22 45 40 42 40
32 40 32 40 37
Tamron 35-135 F/3.5-4.2
F/no. RESOLUTION
at 135mm
at 1:50 magnification
CONTRAST
at 135mm
(30 lines/mm)
Center
Lines/mm
Corner
Lines/mm
Center % Corner %
4.2 40 32 40 35
5.6 45 40 52 40
8 50 40 54 44
11 45 45 52 44
16 45 45 52 46
22 45 40 42 34
32 40 35 50 40
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