1. Eyepiece for standard smartphone microscope (for direct eye observation)
2. Eyepiece for research-grade smartphone microscope (for direct eye observation)
3. Camera adapter for research-grade smartphone microscope (connects to c-mount camera for professional and long-term observation)
4. Light shield tube for research-grade smartphone microscope
5. Handheld high-magnification macro lens for eye use (connects directly to objective lens or super objective lens, serves as a small handheld microscope)