What does volunteer photographer mean?

Free voluntary sharing of photos. Ren often shoots various community activities in the community. Everyone affectionately calls him a volunteer photographer. More people understand the details of nucleic acid detection. The old man cut videos and materials into fragments and shared them with friends and residents. For this reason, he often clips videos to 1 1 at night. In the past 20 days, Ren has taken more than 1000 photos.