Various photographers are unhappy with Beyonce's no photography policy at her Mrs. Carter Show World Tour, which runs from April to September.  She has a policy in place that allows only pre-approved photos from her performances to be given to media outlets for news coverage, and no outside independent photographers will be allowed to snap shots of her.  Bey set this up to avoid any unflattering pictures of herself making their way to front page media articles.  

Some photographers have expressed gripes regarding Beyonce's no photography rule, and claim that it violates their first amendment rights.  Regardless, Beyonce has put in enough work over the years to demand that the photography at her shows is limited in her best interest.  

Source: buzzfeed.com