SeaFrogs Optical Glass Flat Long port with 67mm thread for Canon EF100 f/2.8L Macro IS lens 40M/130FT (Focus gear included)

Regular Price
$250.00 USD
Sale Price
$250.00 USD
Regular Price
$250.00 USD
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  This product is also available at the European website 


Flat long port with 67mm thread for Canon EF 100mm f/2.8L Macro IS lens + RF Adapter

Created specifically for underwater photography, including the ability to use manual focus.


Suitable only for:

  • Canon EOS R5
  • Canon EOS R6
  • Canon EOS R6 II
  • Canon EOS M50 / Kiss M
  • Canon EOS RP

Compatible lenses with Flat Long port with 67mm thread:

  • Canon EF100mm f/2.8L Macro IS USM + RF Adapter (focus gear included)
  • RF100mm F2.8 L Macro IS USM (Autofocus only, manual focus gear not available)



  • Polycarbonate
  • Optical glass

Package Includes

  • Flat long port (67mm tread)
  • Manual focus gear
  • Spare o-ring
  • Silicone grease (5ml)