Refers to a place where photographs are taken professionally, or the person who takes them. Often used for portrait studios or commercial photography businesses.
camera shop; photography supplies shop
A retail store that sells cameras, lenses, film, and other photography equipment. May also offer some services.
photo processing shop; photo finishing shop
A shop that develops film and prints photographs. In modern usage, may also handle digital printing and photo gifts.
We went to a photo studio to have a family portrait taken.
He is a well-known photographer in the local area.
I stopped by the camera shop to buy a new lens.
I took my travel photos to the photo processing shop to get them developed.
カメラ店 specifically means a camera shop selling equipment, whereas 写真屋 can also mean a photo studio or processing shop.
Compound of 写真 (photograph) and 屋 (shop, store, or person engaged in a trade). The 屋 suffix is productively used to indicate a shop or a professional in that field.