On the website I am working on I have a few hundred product pages. Some of the products look identical and I am positive we now have the same images with different alt tags and different source files. For example we have
<img src="/Images/Product1.jpg" alt="Product 1" /> <img src="/Images/Product2.jpg" alt="Product 2" /> <img src="/Images/Product1.jpg" alt="1 Product" />
In this example Product1.jpg and Product2.jpg would have the same image in them.
Is there any real issue with this as far as SEO goes, is it pretty minor, or is something I should be concerned with fixing?