Customizing product Zoom
From Shopnix Help
What is product zoom ?
Image zoom enables magnifying feature for your store's product images. This feature automatically shows a high resolution version of the product image when the cursor is moved over the product image.
Where to set this feature
Go to Admin > Setup > Theme > Product Page tab like below
If you have more queries or would like assistance with this please contact us on support@shopnix.in.