http://www.fotofach.de/ 116-262 http://www.fotofach.de/zoomobjektive-erfahrungsberichte/tamron-sp-af-28-75mm-f28-xr-di-ld-aspherical-if-makro/ The Tamron AF 28-75mm f/2.8 SP XR (forgive me for using a shorter variant of the name ...) proved to be a very good lens in the lab. The resolution figures are among the highest tested among the standard zoom lenses - the center resolution is generally excellent and the borders follow closely on very good to excellent levels. The distortions are very low as is the amount of vignetting and even CAs are very well under control. Nonetheless it should be mentioned that this is the 2nd tested sample of this lens and both showed centering defects - this is worrisome. The build quality of the lens is decent but nothing to rave about. If you can live with the rather odd zoom range within the APS-C scope the lens is worth a deeper look - assuming you can get a good sample. ]]> Thu, 01 Apr 2010 10:42:19 +0200