Final answer:
Concerns among photojournalists about digital photography include the authenticity of images and the impact of image proliferation on the perceived value of professional photography.
Step-by-step explanation:
According to Becker & Roberts, one of the concerns photojournalists had about digital electronic photography is that it challenges the authenticity and historical integrity of imagery. Unlike traditional photography, which required the tedious process of using chemical-coated plates and portable darkrooms as in the collodion process, digital photography allows for immediate capturing and manipulation of images. This shift has raised questions about the truthfulness of photographs when it becomes difficult to discern whether an image has been digitally altered or not.
Additionally, the ease of producing and sharing images in the digital era contributes to a flood of visual content, which can diminish the perceived value of a single image and complicate the traditional roles of professional photojournalists.