I wouldn't use a booth. Try your local photo shop where you'll get 4 pics for around the same price as a booth and you know they will be fine for your passport
As Albaqwerty suggests, most big supermarkets have photo booths, as do main post offices. Additionally, nearly all main railway stations have photo booths.
Try chemists as well. And if the worst comes to the worst, read the guidelines on what the photo should be and get someone to take a photo of you that follows the guidelines.
we just took each otehr's with an ordinary camera. As long as you read the rules - no hair in eyes, no smiling, light background etc - you should be ok.
I've heard many types of Photo Booth like wedding photo booth, mobile photo booth, party photo booth but never heard about this Passport Photo Booth. LOOKLOOK is offering the best photo booth services in Edinburgh. which may help you out.