Objectives for Upright - Biological Microscopes,
160 mm tube length
International DIN standard, parfocal distance 45 mm, Standard DIN 0.7965" (20.1 mm) diameter threads, 36 TPI, 55į Whitworth
Fixed tube length microscopes donít allow insertion of a thick optical component between objective and eyepiece. Consequently they donít offer the flexibility of an infinity design where insertion of a component between objective and tube lens doesnít change the length of the optical path. That allows infinity scopes to take advantage of different accessories without changing the design.
Infinity objectives cannot be used on scopes with finite tube length.
Please contact us with questions.