Sea & Sea Extension Ring 46 with Focus Knob for Wide-Angle Lenses in MDX Housings

Sea & Sea Extension Ring 46 with Focus Knob for Wide-Angle Lenses in MDX Housings

Sea & Sea Extension Ring 46 with Focus Knob for Wide-Angle Lenses in MDX Housings

B&H # SEEXRING40 MFR # SS-30117
Sea & Sea Extension Ring 46 with Focus Knob for Wide-Angle Lenses in MDX Housings

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Expected availability: 7-14 business days

Product Highlights

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

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  • 1Description

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. Check out the list below and see Canon MDX System Chartrbcwceatfaverz or Nikon MDX System Chart

. 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.

Compatibility
Works with the following lenses in ports on MDX series underwater camera housings:
  • Canon EF 16-35mm f/2.8L II USM
  • Canon EF 17-40mm f/4L USM
  • Nikon AF-S NIKKOR 18-35mm f/3.5-4.5G ED
  • Nikon AF-S NIKKOR 16-35mm f/4G ED VR
  • UPC: 752221301175
    In the Box
    Sea & Sea Extension Ring 46 with Focus Knob for Wide-Angle Lenses in MDX Housings
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Material of Construction Corrosion-resistant aluminum alloy
    Coating Alumite
    Dimensions Diameter x Depth: 5.2 x 2.4" / 132 x 61.4 mm
    Distance from Mount to Front End: 1.8" / 46 mm
    Weight 1.1 lb / 0.5 kg
    Packaging Info
    Package Weight 1.65 lb
    Box Dimensions (LxWxH) 7.6 x 7.5 x 5.5"
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