Sony LA-FZB1 User Manual

The Sony LA-FZB1 is a lens mount adapter designed to bridge the gap between Sony’s F5 and F55 professional camcorders (FZ mount) and B4-mount lenses commonly used in broadcast and studio environments. This adapter allows F5 and F55 camera users to leverage their existing HD or even BOX-type lenses typically used with studio cameras, for 4K productions.

Key Features:

• B4 Mount to FZ Mount Compatibility: The LA-FZB1 enables the use of B4-mount lenses on Sony’s F5 and F55 professional camcorders with FZ mounts. This opens up a wider range of lens options for these cameras, potentially saving costs by allowing you to utilize existing lenses for 4K projects.
• Maintains Field of View: The adapter is designed to preserve the original field of view that the B4-mount lens offers on a 2/3″ prism block camera. This ensures you capture the intended image without cropping or alteration of the focal length.
• Data Communication: The LA-FZB1 facilitates two-way communication between the B4 lens and the F5/F55 camera. This allows for features like iris control, focus information display in the viewfinder, and potentially lens aberration data transfer for in-camera correction (with compatible lenses).
• Assignable RET Button: The adapter features an assignable RET (Return) button. This button can be programmed to access various camera functions, such as Expanded Focus for precise focusing or quick review of the last recorded clip.
• Compact and Lightweight Design: Despite its functionality, the LA-FZB1 is surprisingly small and lightweight (approximately 91 x 173 x 96 mm and 1 Kg). This makes it easy to handle and helps maintain a good balance on the F5/F55 cameras.

Things to Consider:

• Compatibility: While the LA-FZB1 works with Sony’s F5 and F55 cameras, it’s not universally compatible with all B4-mount lenses. Sony recommends checking their documentation or contacting a professional to ensure compatibility between the specific B4 lens you intend to use and the LA-FZB1 adapter.
• HD to 4K Upgrade Path: The LA-FZB1 allows leveraging existing HD B4 lenses for 4K productions with the F5/F55 cameras. However, it’s important to understand that the adapter doesn’t inherently upgrade the image quality of the B4 lens itself to true 4K resolution.
• Potential Image Quality Limitations: B4 lenses designed for HD capture may not perform optimally when used for 4K recording. There might be a slight softness or limitations in capturing fine details compared to native 4K lenses.
• Alternative Lens Options: Sony offers a variety of native E-mount and FZ mount lenses specifically designed for 4K capture with their F5 and F55 cameras. These lenses may provide superior image quality and wider aperture options compared to using an adapter with B4 lenses.

Overall, the Sony LA-FZB1 is a valuable tool for Sony F5 and F55 camera users who want to expand their lens options or utilize existing B4-mount lenses for 4K productions. The adapter offers compatibility, data communication, and a compact design. However, compatibility verification, potential image quality limitations with B4 lenses, and availability of native 4K lens options are important factors to consider before purchasing the LA-FZB1.