General-purpose interface for digital camera micrography

The invention provides a general interface used by digital camera while microphotographing, which is characterized in that: the invention is composed of eyepiece stalk sleeve, eyepiece sleeve, switching cylinder, circle, socket joint cylinder, circle with arm, lens sleeve and L type rack; the adjacent components are fixedly connected by inner and outer screw thread. The interface has the advantages that common digital camera can photograph the object in the microscope field into micrograph with clear image and vivid color by the invention and camera common close-perspective recording lens, in order to substitute professional and expensive microphotography apparatus. And the interface has the advantages of simple production, convenient usage, low cost and is easy to spread.