Sea & Sea
Other products by Sea & Sea
Reg. Price: $599.95
Our Price: $549.95
on orders of $35.00 or more.
Please review our shipping policies for details and restrictions.


Sea & Sea Extension Ring 46

Using the Extension Ring 46 with Focus Knob from Sea & Sea, you can operate manual focus with select Canon and Nikon wide-angle zoom lenses in ports on MDX series underwater camera housings. A compatible FC focus gear is required for manual focusing, and can be used in conjunction with a zoom gear. This represents a significant improvement to the Sea & Sea product line, which previously only allowed for the use of auto focus with zoom gears. The focus knob on the ring is located in a convenient position that makes it easily accessible via the index finger and thumb. Additionally, the extension ring is equipped with a port lock. An optional left grip extension lets you position the left housing grip forward to provide easier access to the extension ring's focus knob.


  • For Select Canon and Nikon Wide Lenses
  • For Use with Port on MDX Camera Housing
  • Allows Manual Focus Even with Zoom Gears


Be the first to submit a review on this product!
Review and Rate this Item


No questions have been asked.


Join The OnlineScuba Club!

Enter your email address below to subscribe to The OnlineScuba Club.