For Sale Aquatica Port Extensions: 28.5mm (18453) and 74.4mm (18464)

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18464 Description:

The 18453 Port Extension Ring from Aquatica is for their bayonet style housings when using one of a variety of Canon, Nikon, Sigma and Tokina lenses in an Aquatica port. Insert the ring between the port and the housing. It is constructed from durable anodized aluminum. Retailed for $232; asking $40 with free shipping to continental US addresses.

18464 Key Features:

Includes locking collar (18469)

• Extends Length of Port by 2.93"
• Optimized for Aquatica 9.25" Megadome
• Depth Rated to 300' (91 m)

This Port Extension Ring from Aquatica is for the Canon EF 16-35mm f/2.8L II zoom lens when used within an Aquatica lens port. It extends the length of the port by 2.93". Optimized for the 9.25" Megadome port, it can also be used with the 8" dome port. Retailed for $440 (not including locking collar); asking $80 with free shipping to continental US addresses.