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Sea&Sea Extension Ring 46 with Focus Knob (#30117)

Manufacturer: Sea&Sea
Availability: Usually ships in 3-4 weeks, on request only, no refunds
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Sea&Sea Extension Ring 46 with Focus Knob (#30117)

Price (exc. VAT) €453.72

Price (inc. VAT) €549.00

Shipping cost from €28.00
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Sea&Sea Extension Ring 46 with Focus Knob (#30117). Extension Ring 46 with Focus Knob, provides manual focus for compatible zoom lenses. (Extension ring equipped with port lock).

Compatible Housings: MDX series housings.

Compatible Lenses: 

  • Canon EF 16-35mm F2.8L ll USM 
  • Canon EF17-40mm F4L USM 
  • AF-S Nikkor 18-35mm F/3.5-4.5G ED
  • AF-S Nikkor 16-35mm F/4G ED VR

* Compatible FC focus gear required for manual focusing (can be used in conjunction with a compatible zoom gear). 

* Until now, auto focus has been the only option available when using a zoom gear. With the new Extension Ring 46 with Focus Knob, you can now manually focus a compatible zoom lens. When your camera's AF frames do not cover your subject, you can manually focus a compatible lens without changing composition.
* This product is the ideal solution when you shoot fast-moving subjects (which even the latest auto focus may not follow) or when you shoot in dark environments and when there are lots of particles suspended in the water; all situations where auto focus will not function correctly.
* The focus knob is located in an ideal position and angle to be easily operated with the index finger and thumb.

  • [Dimensions (DIAxD)] 132x61.4mm / 5.2x2.4inch (excluding protruding parts)
  • [Weight] Approx. 525g / 18.5oz
  • [Depth rating] 100m / 330ft
  • [Construction] Corrosion-resistant aluminum alloy (alumite coating)
  • [Distance] Between the mount and the front end: 46mm / 1.8 inches
Sea&Sea provides a limited warranty to the original purchaser against all defects in original workmanship and material under normal SCUBA use and service as outlined in the owner's manual for 1 year from the date of purchase, with the following exceptions:
  • Should your equipment prove to be defective for any reason (other than those listed in the limitations section below) it will be repaired or replaced at Sea&Sea´s discretion, free of charge, excluding shipping and handling charges.
  • Repairs made under this warranty will not extend the warranty period
  • This warranty is non-transferable and applies to the original purchaser only.
  • All correspondence concerning this warranty must be accompanied by a copy of the original sales receipt.
  • Any flood or damage, for any reason, that is caused from flooding an O-ring sealed or water tight area will not be covered under warranty. All O-ring sealed products undergo extensive factory pressure testing before being shipped and delivered and are therefore guaranteed to be sealed and functioning when shipped from the factory.
  • Sea&Sea nor ADITECH will not be liable for any loss, damages, or expenses including incidental or consequential damages directly or indirectly arising from the sale or use of the product.
  • Sea&Sea accepts no liability for any loss of captured images or the inability to capture images even if it is due to the malfunctioning or leakage of the housing.
  • All paint finishing, cosmetic discoloration of surfaces, powder coating, or material stitching that is chipped, damaged, or unthreaded through customer use is not covered in the warranty.
  • Sea&Sea does not warranty any product for aesthetic finishes. Issues with surface finish that do not affect function of the product are not covered under warranty.
  • This warranty does not apply and may be rendered completely void in the event of accidental damage, abuse, batteries´ electrolyte spillage, overcharging of battery, flooding due to neglect, tampering, lack of care and maintenance, improper storage, or unauthorized service.
  • This warranty specifically excludes lenses, cords, connectors, O-rings, or other conditions resulting from misuse and negligence.
  • This warranty becomes void if the housing components are damaged by anything other than normal recreational diving use.
  • Modifications or repair by anyone other than an authorized Sea&Sea Dealer or ADITECH Service Department will void the warranty.
  • By purchasing this product you agree and understand that in no event will Sea&Sea, its distributors or retailers, be held liable for any personal injuries resulting from its operation, or any other damage whether direct, indirect, incidental or consequential, even if Sea&Sea or ADITECH is advised of such damages.
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