Canon Yj18x9b4 Manual Top ((top)) · Must Read

| Category | Specification | | :--- | :--- | | | 18x | | Focal Length Range | 9mm (wide) – 162mm (telephoto) | | Maximum Aperture | f/1.8 (or T1.8) | | Lens Mount | B4 (2/3-inch sensor) | | Sensor Coverage | 2/3-inch | | Minimum Object Distance (MOD) | Ranges from 0.6m to 0.8m, depending on model | | Optical Elements | Includes Fluorite and UD (Ultra-low Dispersion) glass elements | | Filter Diameter | 112mm | | Weight | Approximately 2.3kg to 2.8kg, depending on the specific model and controls | | Length | Approximately 213mm to 269mm | | Physical Connector | 26-pin electrical interface for camera communication (Requires B4 mount for servo power) |

[ Front Element ] ---> [ Focus Ring ] ---> [ Zoom Ring ] ---> [ Iris Ring ] ---> [ B4 Mount ] | | | | | (Macro Selector) (Rubber Grip) (Servo Pinion) (Auto/Man Switch) (Back Focus Lock) canon yj18x9b4 manual top

The "manual" aspect typically refers to the lens's versatility in switching between servo-driven and manual operation: | Category | Specification | | :--- |

Rotate the flange back ring until the image is perfectly sharp. Do not touch the main focus ring. Storage: Store the lens in a dry, temperate environment

Avoid forcing the zoom or focus rings when the servo is engaged, as this can damage the internal gearing. Storage: Store the lens in a dry, temperate environment. 5. Summary of Top Features