I haven't taken photos of the fabric, I have taken photos of a finished quilts that hang in the shops. I always ask and inform them of my intentions mainly the size of the block or pattern. I have asked about certain patterns and templates which they had no clue. The point is to always ask for permission. One of our LQSs was robbed of 10 bolts from the front of the store a few months back. Now if you want a photo, they take the photo and email it to you. You never see photos of the complete store. For good reason.