Can I disable the zoom on the product image on the product detail page?

To turn off the zoom:

 

1)  Go to Sites > [site name] > Products > [product name] > General tab > Product Detail Page section.  
2)  Turn off the "Display product image on product detail page" setting.
3)  Go to Sites > [site name] > Products > [product name] > Description tab > Long Description section.
4)  Upload an image into the long description.  To upload an image, use the image manager button in the text editor.
5)  Save.