Canon: Yj18x9b4 Manual Top

f/1.8 (at 9-114mm), ramping to f/2.7 at 171mm (for similar YJ series models). Minimum Object Distance (M.O.D.): 0.6 meters.

The (IRS/KRS) is a professional 18x zoom lens designed for 2/3-inch B4 mount cameras, primarily used in SDTV news gathering and field productions. While officially categorized as a Standard Definition (SD) lens, it is highly regarded for its lightweight design (approx. 1.2kg to 2.3kg depending on the specific model and accessories) and sharp internal focus (IF) system. Core Specifications Focal Length: 9mm to 162mm. Zoom Ratio: 18x.

The front end remains stationary during focusing, which reduces chromatic distortion and flare while allowing for consistent use of front-mounted filters. canon yj18x9b4 manual top

For full technical documentation, users should refer to the Canon User Manual Library or Canon UK Support by searching for "YJ18x9B4" or the associated camera system. Canon YJ18x9B4 IRS-A SX12 1.8 B4 Lens Test - Vimeo

Immediately wipe off moisture from misty or foggy environments. For storage, it is recommended to seal the lens in a plastic bag with a desiccant to prevent mold. While officially categorized as a Standard Definition (SD)

Essential for ensuring the lens remains parfocal (stays in focus throughout the zoom range).

Approximately 1.2kg (KRS) to 2.3kg (standard assembly). Lens Mount: 2/3-inch Bayonet (B4). Manual & Operational Highlights Zoom Ratio: 18x

This lens is a popular choice for adaptation to modern mirrorless or cinema cameras (like the Sony FS7 or Panasonic GH series) using B4-to-E or B4-to-MFT adapters.

According to operational guidelines, the lens features several user-centric designs:

The lens body is finished with a specially developed protein paint designed to absorb moisture and provide a comfortable, fatigue-free grip for long shooting sessions.