Verdict: This lens has a long focal length which allows you to keep a distance from your subject, it’s plastic bodied but a very sturdy construction. At 985g it’s rather weighty but this won’t be a problem as it has a tripod collar so it’s easily mounted.
Tamron brings us the longest focal length here, with its 180mm f/3.5-32 beast. The 985g plastic-bodied behemoth has a minimum focusing distance of 47cm for a true 1:1 reproduction, and an LD (Low Dispersion) element to decrease chromatic aberration to virtually zero. Working at longer lengths is unusual in macro photography, but it does allow you to keep a distance from your subject, get a tighter angle-of-view on the background and reduce the risk of casting a shadow.
TAMRON'S 180MM MACRO DELIVERS GREAT CENTRAL SHARPNESS
The lens produces great central sharpness throughout the range, but either side of f/5.6 or f/11 there is some softness in the corners and, although not too severe, it is noticeable. The same is true for vignetting, which is definitely present at apertures wider than f/8.
Build quality is decent and the large front element ensures the lens reacts well in all lighting conditions. The included tripod collar makes for steadier long exposures. The AF doesn’t have a limiter, but still works well.
Spec
Minimum aperture: f/32
Elements: 11/14
Filter size: 72mm
Minimum focus distance: 47cm
DxH: 85x166mm
Weight: 985g