My team at Amazon.com just launched a bundle of new features for Clothing/Apparel shopping. One of them is a kick-ass zoom experience for denim. Load up certain pairs of jeans, such as these 7 For All Mankind women's jeans, and roll over the image. Bam! Super high-res detail overlays the page. Pan by simply moving the cursor around. Roll over an alternate angle and that view becomes zoomable.
Here's a screenshot with the zoom showing:
All the jeans in the new Amazon Denim Shop have this zoom feature, and one not-yet-discoverable "easter egg" feature is, if you click the main image you get full-window zoom that takes over your whole browser. ✜