Canon Yj18x9b4 Manual: Top [cracked]
Dedicated switches for switching between manual and auto iris, as well as manual and servo zoom. Internal Focus (IF):
[ Front Element ] -> [ 82mm Filter Thread ] | [ Focus Ring ] ----> (Manual Rubber Grip / Outer Ribs) | [ Zoom Ring ] -----> (Gear Pitch for Manual Rods / Motors) | [ Iris Ring ] ------> (Auto / Manual Aperture Selector) | ===========||=========== | SERVO DRIVE UNIT |--> [ Rocker Switch ] (Wide / Tele) | |--> [ VTR/Record Button ] | (Right-Hand Grip) |--> [ Manual Override Clutches ] ===========||=========== | [ Rear Element ] ---> [ B4 Bayonet Pins & 12-Pin Cable ] Initial Setup & Mounting Guide
If your image loses focus when zooming from tight (telephoto) to wide, your back focus requires adjustment. canon yj18x9b4 manual top
| 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) |
Do not force the manual rings when the drive unit switches are set to servo mode. This can strip the internal gears. Dedicated switches for switching between manual and auto
Whether for ENG, corporate video, or documentaries, the Canon YJ18x9B4 remains a reliable, cost-effective option for filmmakers requiring high-quality, broadcast-grade performance.
Keep the front and rear caps on whenever the lens is detached from the camera body. This can strip the internal gears
If you are working with the — a classic 2/3-inch broadcast ENG lens — you know it is built for reliability. However, finding a dedicated "manual" for the top-mounted controls can be tricky. This guide focuses specifically on the top section of the lens, covering the handle, zoom rocker, and maintenance tips for operators who prefer manual or semi-servo control.
Instructions on for parfocal performance. The difference between the KRS (Manual/Servo) and IRS (Built-in 2x Extender) models. The pinout for the 12-pin Hirose power connector.