How about a macro photography book with tips and tricks? One option is "Macro Photography for Gardeners and Nature Lovers: The Essential Guide to Digital Techniques" by Alan L. Detrick. Another option could be a set of macro photography lenses for their smartphone or camera, to help them capture even more stunning shots. Another idea is to gift them a photography session with a local macro photographer or a workshop to learn new skills and techniques.
Or you can get her/him a star map with the date when she/he was born.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.