Description
Product Description
The INON EXT. Ring 18 is a dedicated extension ring designed specifically for use with the Canon EF 100mm Macro Lens when combined with the Kenko 1.5× Teleconversion Lens. It provides the precise extension required to correctly position this lens combination within compatible INON underwater port systems, helping maintain proper optical alignment and system performance.
Precision-machined from corrosion-resistant aluminum alloy with a durable black anodized finish, the EXT. Ring 18 integrates seamlessly with compatible INON housings and ports. It creates a secure, watertight connection while allowing underwater photographers to configure their system for this specialized macro setup.
Please Note: This extension ring is specifically intended for the Canon EF 100mm Macro Lens with the Kenko 1.5× Teleconversion Lens. Verify compatibility with your housing and port system before purchasing.
Key Benefits
-
Purpose-Built for Canon Macro Setup
Designed specifically for the Canon EF 100mm Macro Lens used with the Kenko 1.5× Teleconversion Lens. -
Maintains Proper Optical Positioning
Provides the required extension to correctly position the lens combination within compatible INON port systems. -
Precision-Machined Construction
Manufactured from corrosion-resistant aluminum alloy with a durable black anodized finish. -
Secure Underwater Connection
Designed to maintain a reliable, watertight seal between compatible housing and port components. -
Seamless INON System Integration
Works with compatible INON underwater housings and modular port systems. -
Optimized for Specialized Macro Photography
Supports proper configuration for high-magnification underwater macro imaging.
Who It's For
- Underwater macro photographers
- Canon DSLR users with the EF 100mm Macro Lens
- Photographers using the Kenko 1.5× Teleconversion Lens
- Divers configuring compatible INON port systems
What's Included
- EXT. Ring 18
Key Specifications
- Product Type: Port Extension Ring
- Compatibility: Canon EF 100mm Macro Lens with Kenko 1.5× Teleconversion Lens
- System Compatibility: Compatible INON underwater housings and port systems
- Function: Positions the specified lens combination at the correct distance within the port system
- Construction: Corrosion-resistant aluminum alloy with rigid black anodized finish
FAQ
What is the EXT. Ring 18 designed for?
It is specifically designed for the Canon EF 100mm Macro Lens used together with the Kenko 1.5× Teleconversion Lens.
Does it work with the Canon EF 100mm Macro Lens by itself?
This extension ring is intended for the lens when used with the Kenko 1.5× Teleconversion Lens. Other configurations may require a different extension ring.
Does this include the teleconverter, lens, port, or housing?
No. This listing includes only the EXT. Ring 18. The lens, teleconverter, housing, port, camera, and other accessories are sold separately.
Why is a dedicated extension ring required?
It provides the precise spacing needed to maintain the correct optical relationship between the lens combination and the underwater port.
Will it fit every INON housing?
Compatibility depends on your specific INON housing and port system. Please verify compatibility before purchasing.
What is it made from?
It is precision-machined from corrosion-resistant aluminum alloy with a durable black anodized finish.

