The Nikon Small World Competition first began in 1975 as a means to recognize and applaud the efforts of those involved with photography through the light microscope. Since then, Small World has become a leading showcase for photomicrographers from the widest array of scientific disciplines.

A photomicrograph is a technical document that can be of great significance to science or industry. But a good photomicrograph is also an image whose structure, color, composition, and content is an object of beauty, open to several levels of comprehension and appreciation.

The Nikon Small World Competition is open to anyone with an interest in photography through the microscope. Winners have included both professionals and hobbyists.

Nikon welcomes a broad range of subject matter, and any type of light microscopy technique is acceptable, including phase contrast, polarized light, fluorescence, interference contrast, darkfield, confocal, deconvolution, and mixed techniques. Entries submitted to Nikon are then judged by an independent panel of experts who are recognized authorities in the area of photomicrography and photography. These entries are judged on the basis of originality, informational content, technical proficiency and visual impact.