Features This item is a 0.5x C-mount adapter for connecting a CCD camera or digital eyepiece to the microscope. Effects: compact with the lens tube, so that the insertion depth can be easily controlled. It can be used in all eyepiece positions with 23.2mm or 30mm or 30.5mm and 0.5x magnification to get a larger field of view. This item has two adaptors: 23.2 turns to 30 mm and 23.2 turns to 30.5 mm. Lens blue anti-reflective coating, increases transmission. Specification: Material: metal. Weight: 142g/5oz Colour: black. Model: kp-05x. Interface: C-Mount Interface size: 23.2 turns 30 mm; 23.2 mm becomes 30.5 mm (as shown in the pictures) Features: Effects: Compact with the lens tube, so that the insertion depth can be easily controlled. This item is a 0.5x C-mount adapter for connecting a CCD camera or digital eyepiece to a microscope.Lens blue anti-reflective, increases transmittance.This item has two adaptors: 23.2 revolutions to 30 mm and 23.2 revolutions on 30.5mm. It can be used in all eyepiece positions with 23.2 mm or 30 mm or 30.5 mm and 0.5x magnification to get a wider field of view. Package list: 1 x 0.5X C-mount lens adapter. 1 x ring adapter 30 mm. 1 x ring adapter 30.5 mm. Tips: 1. Please allow slight errors due to manual measurement. Thank you for your understanding. 2. Monitors are calibrated differently, the colour of the item shown in the photos may differ slightly from the actual object. Please take the real one as standard. Package List