Photography had particularly dramatic effects on the livelihoods of painters who operated on the fringe of the mainstream. This included the portrait miniaturists, whose markets fell drastically, particularly after the introduction of the multi-pose and cheap cartes de visite in the mid-1850s. Many gave up, while others turned to colouring photos [25]. Some painters of sentimental genre scenes were also particularly affected, as a result of the profusion of readily available photographic genre works, often composed in a painterly or "pictorial" style [26]. This was sometimes due not to the public’s preference for the photographic version, but simply because a particular subject matter lost its appeal to painters and their clients once photography entered the scene [27]. In addition, the introduction of “half-tone” photography in the 1880s also initiated a slow decline in the market for newspaper and magazine illustrators [28].

Much more here: https://www.artinsociety.com/pt-1-initial-impacts.html

https://www.barnesfoundation.org/whats-on/early-photography