education for microscopy concepts

• the eyepiece lenses versus the objective lenses
• the DIN standard versus the JIS standard

the eyepiece section

• "reducer" or "reduction lens" — It reduces the image so it better fits the camera sensor size. Especially see the part about 'such as 1/1.8"'.
  • (example products)
• "C-mount" — a standard connection for microscope cameras
  • how to match your image sensor to a C-mount
• "eye relief"
  • how to view and adjust the eye relief

the objective section

• ...