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more information about Extension Rings, click
here.
18426
AF/MF Macro Port: for all Aquatica bayonet style housings
This flat port is a long standing member of our modular system
and a favourite among professionals and advanced underwater
photographers. When combined with a variety of extension rings
it can accommodate a large array of macro lenses, ranging from
35mm all the way to 200mm, it is even compatible with lenses
equipped with internal close up lenses, teleconverters or extension
tubes.
The flat lens is made of BK-7 material, finely polished and
coated with a superior Silicon Oxide coating (SiO2)
on the external surface. This coating is not only a more resistant
type of coating but has a 0.01% reflective index, improving
light transmission. Additionally this SiO2 coating is
a perfect match to the index of water, which naturally reduces
reflections.
This AF/MF macro port has a side mounted
knob that can connect to an optional focus gear mounted on
the lens. This gives the user the possibility of manually
focusing the lens. Manual focus can be very handy when shooting
in low light, poor visibility or when using close-up lenses
for high magnification, as the camera’s auto focus
tends to struggle in these situations
For a list of the available extension and
their dimension please visit the extensions
rings section. A lens chart associated with your camera
housing will inform you of the most current popular combination.