Reference Chart

!
Page 6 of 23 DL (Dry Lock) Port System Charts Rev. 2020.06.19
OPTION 1
(Recommended)
OPTION 2
OPTION 3
Canon 24-70 mm f/4L IS USM
Superior edge sharpness
compared to shorter port
option. Larger dome is best
for split shots (half-in, half-
out of the water). Lens
macro switch is not
accessible. AF only.
Product(s) required:
+4 Diopter Required
75340 Dome Port
75042 Extension
5509.21 Zoom Gear
Compact and lightweight for
travel. Better for close focus
wide angle. Lens macro
switch is not accessible. AF
only.
Product(s) required:
+4 Diopter Required
75344 Dome Port
75020 Extension
75042 Extension
5509.21 Zoom Gear
Larger dome is best for split
shots (half-in, half-out of the
water). Lens macro switch
is not accessible. AF only.
Product(s) required:
+4 Diopter Required
75340 Dome Port
75020 Extension
5509.21 Zoom Gear
Canon 24-105 mm f/3.5-5.6 IS STM
AF only.
Product(s) required:
+4 Diopter Required
75340 Dome Port
75020 Extension
75050 Extension
5509.28 Zoom Gear
Optional accessories:
0923.06 Anti-Reflection
Ring
Canon 24-105 mm f/4L IS USM
AF only.
Product(s) required:
+4 Diopter Required
75340 Dome Port
75050 Extension
5509.12 Zoom Gear
Optional accessories:
0923.06 Anti-Reflection
Ring