170mm Fisheye Dome Port Nauticam N85II

170mm Fisheye Dome Port Version 2 for Nauticam N85.
The 170mm size is travel friendly yet maintains the Zen tradition for the finest optical ports available. This multi-coated optical glass dome port offers optical purity, free from chromatic aberration, flare and distortion yielding stunning photographic results.
The interior of the dome element is coated with a magnesium fluoride broadband anti-reflective coating to minimize internal reflections from camera lenses, lettering on cameras, etc. which can be problematic when shooting over/under scenes.
The exterior is treated with a proprietary scratch resistant coating to control lens flare.
This coating yields an amazing 99.7%+ transmissive value for true distortion free images.
Weight: 1.03 kg.
Depth Rating: 90m
Differences between DP-170 N85 (Version 1) and DP-170-N85 II (Version 2):
The DP-170-N85 II (Version 2) already includes a 25mm extension so it can be directly used with the following lenses:
Panasonic 7-14 f/4
Olympus m.Zuiko 9-18 f/4-5.6
Panasonic 12-35 f/2.8
Olympus m.Zuiko 12-40 f/2.8
Sony 10-18mm f/4 E-mount