A na-eji ihe nkwụnye ndị a jikọọ igwefoto C-mount na tube eyepiece microscope ma ọ bụ tube trinocular nke 23.2mm.Ọ bụrụ na dayameta tube eyepiece bụ 30mm ma ọ bụ 30.5mm, ị nwere ike ikwunye ihe nkwụnye 23.2 n'ime mgbanaka njikọ 30mm ma ọ bụ 30.5mm wee gbanye n'ime tube eyepiece.