1. EKE1, EKE2, EKE3, EKE4, EKE6, EKE7, EKE8, EKE9, the measurement to match between the support and the main body is Φ76mm, match with stereo microscopes
2. EKE5, EKE10, EKE11, the measurement to match between the support and the main body is Φ45mm match with monocular video microscopes.
3. The distance between from the past center to the support center is 140mm
4. Special EKE4, EKE7, the distance between from the post center to the support center is 110mm. And EKE9, EKE10 the distance is 150mm.
5. The range of adjusting focus is 50mm
6. EKE9, EKE10 with fine adjustment.