The Comparison: Canon vs Tamron Canon’s EF 24-70 f/2.8L II USM has been hailed as the sharpest lens of its type, but it has no image-stabilization, and it carries a hefty price tag at $2049. On the other hand, Tamron’s new 24-70 f/2.8 VC USD does have image stabilization, but the company’s optics only occasionally match the standards found in OEM lenses. Both are well built, with weather sealing and fast, quiet focusing motors. There are only so many resolution […]