Tamron Adaptall-2 35-135mm F/3.5-4.5 Model 40A: A moderate
wide angle to moderate telephoto zoom lens with above average optical
performance. This lens is more compact than the earlier model 22A and features
a completely new optical design which retains a floating front focus group as
used in the earlier model 22A optical design. This lens trades off the earlier
model's CF macro ability at 135mm in favor of a significantly more compact
overall design. Maximum macro magnification is achieved at 35mm by using the
built-in macro button and turning the macro helicoid ring, an operation which
is similar in function to Tamron's SP 28-135. Although the macro function is
less convenient compared to the earlier model 22A design, this lens is more
compact and uses smaller filters.
||f/3.5~4.2 32, AE
|Angle of View
(Groups / Elements)
|13 / 15
|Min. Focus from Film
||31.5" (0.8m) at
11" (0.28m) at 35mm in macro mode
|Macro Mag. Ratio [w/2X
||1:4 [1:2] at f=35mm
||19.3 oz. (547g)
||Bayonet type #79FH, (optional extra).
||Accepts SP 2X tele-converter.