My images are small. How do I increase the zoom factor?

Cool Image Magnifier has several options to control how much the images are zoomed in.

If you only have small images you can use the extra zoom options to force a zoom on your images.

You can find them on the app preferences page (Advanced preferences):

Please note that the best option is always to upload the images of the highest resolution possible. Shopify keeps several versions of the images: the lower-resolution images are displayed on product pages while our app uses the higher-resolution images to create the zoom effect.

If you only have small images, try to apply a small extra zoom factor and test how it looks. Try different extra zoom values to find the best balance while avoiding displaying blurred images.