C-mount 0.35X Microscope Adapter Description (1).Magnification: 0.35X (2).Suit for Olympus Biological Microscope: AX serials, CX serials, BX serials, MX serials, CX2 serials, BX2 serials; and also suit for Olympus Volume Microscope SZX serials. (3).Suit for Sensor: 1/2.5" 1/3" 1/4" C-mount 0.5X Microscope Adapter Description (1).Magnification: 1X (2).Suit for Olympus Biological Microscope: AX serials, CX serials, BX serials, MX serials, CX2 serials, BX2 serials; and also suit for Olympus Volume Microscope SZX serials. (3).Suit for Sensor: 1/1.8" 1/2" 1/2.5" (4).Easy Focus Adjustable and Lockable, Do not need extra tools. C-mount 1X Microscope Adapter Description (1).Magnification:1X (Without lens) (2).Suit for Olympus Biological Microscope: AX serials, CX serials, BX serials, MX serials, CX2 serials, BX2 serials; and also suit for Olympus Volume Microscope SZX serials. (3).Suit for Sensor: 1" 2/3" (4).Top Thread: Outside C-mount thread ( 25.4 mm) (5).Outside Diameter of Bottom: 42 mm (6).Adjustable: NO 0.63X Professional Microscope Camera Adjustable C mount Adapter for Trinocular Olympus Microscope Reduction Rate: 0.63X Suit for Olympus Biological Microscope: AX serials, CX serials, BX serials, MX serials, CX2 serials, BX2 serials; and also suit for Olympus Volume Microscope SZX serials. Suit for Sensor: 1/1.8" 2/3" 1/2" Focus Adjustable and Lockable Specification of 1.2X Microscope Adapter for Olympus Sensor Size:4/3”,1” Mount Type:M42-Mount Warm Tips (1).1X C mount adapter for Olympus trinocular microscope, without lense, with fine tuning, no adjustable, can make computer display and eyepiece observation synchronization. (2).It was NOT made by Olympus. It's a substitute product, NOT copy. Package Package Included: 1 x Adapter only (microscope and other accessories are not included)