Try searching "YJ18x9B4.pdf" directly in Google with filetypedf . If that fails, visit Canon’s Broadcast Support (not their consumer site) and look under "Discontinued Products."
: A fast f/1.8 aperture makes it a monster in low-light environments, perfect for documentary or late-night "golden hour" shoots. canon yj18x9b4 manual top
Capable of zooming from wide to tele in approximately 1.7 seconds . Try searching "YJ18x9B4
Dedicated switches for switching between manual and auto iris, as well as manual and servo zoom. Internal Focus (IF): Dedicated switches for switching between manual and auto
Before you find the PDF, let’s look at the of the lens. This is where the magic happens.
Fast f/1.4 to f/1.8 (depending on the specific sub-model like the SX12 or KRS) standard 2/3-inch B4 Bayonet Minimum Object Distance (M.O.D.): Approx. 0.6m to 0.9m
The "B4" in the name refers to the mount. The manual explicitly states: Do not use this lens on a consumer camera without a glass protection filter. The rear element protrudes deep into the camera body and can scratch the camera's prism or sensor cover.