Product image zoom free extensions

http://www.magentocommerce.com/magento-connect/simple-zoom-slider-3972.html

http://www.magentocommerce.com/magento-connect/customproduct-1021.html

http://www.magentocommerce.com/magento-connect/colors-by-adverti-se-1816.html

http://www.magentocommerce.com/magento-connect/productview.html

http://www.magentocommerce.com/magento-connect/product-zoom-2310.html

http://www.magentocommerce.com/magento-connect/color-swicher-module-9707.html

http://www.magentocommerce.com/magento-connect/qaz-q-zoom-image-1316.html

http://www.magentocommerce.com/magento-connect/cueblocks-zoom.html

http://www.magentocommerce.com/magento-connect/vs-product-image-zoom-featurezoom.html