This plugin was built for a client to use on her e-commerce website in 2014. Unfortunately, the website did not pursue.
Tweaked a bit since V.1 is buggy, so this is V.1.5
<script type="text/javascript" src="jquery.js" ></script>
<script type="text/javascript" src="jqzoomer.1.5.min.js" ></script>
<script type="text/javascript">
jQuery(document).ready(function(){
jQuery(".[CLASS]").jqzoomer();
// Or
jQuery("#[ID]").jqzoomer();
});
</script>
<div class="CLASS">
<a href="path_to_BIG_image.jpg">
<img src="path_to_SMALL_or_Default_image.jpg" />
</a>
</div>
<div class="CLASS">
<a href="path_to_BIG_image.jpg">
<img src="path_to_SMALL_or_Default_image.jpg" />
</a>
</div>
<div id="ID">
<a href="path_to_BIG_image.jpg">
<img src="path_to_SMALL_or_Default_image.jpg" />
</a>
</div>
This jQuery plugin is FREE to use.
You may use jQzoomer plugin / project under the terms of BSD License.