Reference Chart

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Page 17 of 23 DL (Dry Lock) Port System Charts Rev. 2020.06.19
OPTION 1
(Recommended)
OPTION 2
OPTION 3
14-24 mm Sigma f/2.8 DG HSM | A
Zoom not supported. Lens
must be pre-set and used
at a fixed focal length. AF
only.
Product(s) required:
75340 Dome Port
75020 Extension
75037 Extension
Sigma 15 mm F2.8 EX DG Diagonal
Fisheye
Slight vignetting (dark
shadows in the corners of
the image) may be present
with full frame cameras. AF
only.
Product(s) required:
75340 Dome Port
Sigma 15-30 mm f/3.5-4.5 DG
Lens diameter is too large
to operate in port system.
Sigma 17-70 mm f/2.8-4.5 DC Macro
Sigma 17-70 mm f/2.8-4.5 DC Macro
HSM
Port recommendation not
available.
Sigma 17-70 mm f/2.8-4 DC Macro
OS HSM
Larger dome is best for split
shots (half-in, half-out of the
water). AF only.
Product(s) required:
75340 Dome Port
75050 Extension
5509.29 Zoom Gear
Compact and lightweight for
travel. Best for close focus
wide angle. AF only.
Product(s) required:
75344 Dome Port
75050 Extension
5509.29 Zoom Gear
Sigma 18-35 mm f/1.8 DC HSM Art
AF only.
Product(s) required:
75340 Dome Port
75050 Extension
5509.28 Zoom Gear