Tamron SP AF 90mm F2.8 Di Macro A-mount lens review by dca1213

dca1213#7912 date: Sep-1-2010
sharpness: 5 color: 5 build: 4 distortion: 5 flare control: 5 overall: 4.8	tested on: film camera: APS-C: 6MP; 10MP; 12MP; 14MP; 16MP; 20MP; 24MP full frame: 12MP; 24MP; 36MP; 42MP; 61MP
ownership:	I own this lens
compared to:	Sigma 50mm EX DG Macro
price paid:	$450 USD NEW
positive:	Very sharp, razor sharp beyond f4
negative:	none, well maybe the sack, hard to get the lens in and out without extending the tube, and the AF/mf SWITCH.
comment:	Unlike the previous reviewer I have found this lens to be as sharp and functional as any lens I have ever used in the last 35 years. Extremly sharp even wide open and tack sharp fromn f4 to f11. This is a wonderful lens for macro and portrait work. I would recommend it to anyone. When compared to the Sigma sharpness is about equal, the Sigma is a very sharp well built lens. I would rank this Tamrom above it only because of the focal length, 50 is just too short for many macro photography requirements. A very good lens at a very good price. I gave the build a 4 only because I'm not too keen on the push pull MF/AF switching method. If 4.5 was available that is what I would have ranked it at.