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60 degree thanks to its fly-eye lens structure and flexibly supports different application
Focus Stick tip represents minimum focusing distance and far end of the depth of field is 8
You can adjust the filter strength depending on depth or water condition like setting minimum effect near the bright surface while using stronger filter setting at depth with insufficient orange or yellow wavelength
Some situations underwater require as much light as you can get
INON Grease
Sea&Sea Zoom Gear for Canon EF 17-40mm f/4L USM Lens @light 60 degree thanks to itsSea&Sea zoom gear enables zooming for the Canon EF 17 40mm f 4L USM lens via the housing's focus zoom knob when used with Sea&Sea MDX RDX housings.
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