Product Description

The INON EXT. Ring 81 is a dedicated extension ring designed specifically for use with the Canon EF 180mm Macro Lens when paired with the Canon 2.0× Teleconverter. It provides the precise extension required to correctly position this lens combination within compatible INON underwater port systems, ensuring proper optical alignment and dependable underwater performance.

Precision-machined from corrosion-resistant aluminum alloy with a durable black anodized finish, the EXT. Ring 81 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 super macro setup.

Please Note: This extension ring is specifically intended for the Canon EF 180mm Macro Lens used with the Canon 2.0× Teleconverter. Verify compatibility with your housing and port system before purchasing.

Key Benefits

• Purpose-Built for Canon Super Macro Setup
  Designed specifically for the Canon EF 180mm Macro Lens combined with the Canon 2.0× Teleconverter.
• Maintains Proper Optical Positioning
  Provides the precise extension needed to correctly position the lens and teleconverter combination within compatible INON port systems.
• Precision-Machined Construction
  Manufactured from corrosion-resistant aluminum alloy with a durable black anodized finish.
• Secure Underwater Connection
  Engineered 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 High-Magnification Macro Photography
  Supports proper system configuration for specialized underwater macro imaging with a 2.0× teleconverter.

Who It's For

• Underwater macro photographers
• Canon DSLR users with the EF 180mm Macro Lens
• Photographers using the Canon 2.0× Teleconverter
• Divers configuring compatible INON port systems

What's Included

• EXT. Ring 81

Key Specifications

• Product Type: Port Extension Ring
• Compatibility: Canon EF 180mm Macro Lens with Canon 2.0× Teleconverter
• 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 81 designed for?
It is specifically designed for the Canon EF 180mm Macro Lens used together with the Canon 2.0× Teleconverter.

Does it work with the Canon EF 180mm Macro Lens by itself?
This extension ring is intended for the lens when used with the Canon 2.0× Teleconverter. 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 81. 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.