Description
The Extension Ring 40mm B102 (ST-AS750) is a precision port extension designed to ensure proper lens-to-port alignment when using longer or wide-angle lenses in compatible underwater housing systems. By adding 40mm of extension, it allows your port setup to maintain optimal optical performance and prevent issues like vignetting or softness.
Built for durability and precise fit, this extension ring is an essential component for configuring your underwater camera system correctly based on your specific lens and port combination.
Key Benefits:
- Adds 40mm extension for proper port configuration
- Maintains optimal optical alignment for better image quality
- Helps prevent vignetting and edge distortion
- Durable construction for reliable underwater use
- Essential for correct lens and port compatibility
Who It’s For:
- Underwater photographers using interchangeable lenses
- Divers configuring dome or flat port systems
- Users needing precise port extension for specific lenses
- Photographers aiming for optimal image quality underwater
What’s Included:
- Extension Ring 40mm B102
Specifications:
- Product Type: Port Extension Ring
- Length: 40mm
- Compatibility: Compatible underwater housing and port systems (B102 mount)
- Function: Adjusts lens-to-port distance
- Construction: Corrosion-resistant materials
- Model: B102
- SKU: ST-AS750
FAQ
What is the purpose of this extension ring?
It increases the distance between the lens and the port to ensure proper alignment and image quality.
When do I need a 40mm extension?
You need it when your lens requires additional spacing to match the correct port configuration.
Will this improve image quality?
Yes, when used correctly, it helps maintain sharpness and prevents vignetting.
Is this compatible with all housings?
No, it is designed for systems that support the B102 mount standard.