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7. During the dive, install the lens by screwing it on to your housing lens port. Avoid
tightening the lens too hard onto the housing port, filter or adaptor, as this might
result in difficulty with removal.
8. Once the lens is installed on the housing lens port, test the mount to make sure it's
stable and that the lens sits within a fixed and secure position.
9. Align the wings by carefully swiveling them so that the longer wings are positioned
vertically - on the bottom and top. This will prevent the wings from being visible in
images captured. Note that swiveling the wings for the first time might require applying
additional pressure.
10. Note that water must enter the gap between the lens port and UWL-400F Lens glass
when using the lens underwater. Therefore, when diving with the lens, it is best to
install it underwater. Before capturing images, make sure that the gap between the wide
angle lens and the housing lens port fills with water and that there are no air bubbles
trapped there.
11. The UWL-400F Lens can be removed and installed repeatedly throughout the course of
the dive.
12. When removing the UWL-400F Lens from the housing, it can be conveniently stored by
attaching it to an EyeGrabber Lens Holder, which mounts on any standard Flex or B&J
Arm. For a selection of EyeGrabber Lens Holders available, please visit our website -
www.fantasea.com
13. During the beginning of your dive, the lens might become foggy as a result of an increase
in the air temperature inside the lens, following submersion in cooler water. Storing the
lens in a cool dry place when not being used, such as a padded housing bag with a few
silica gel packs inside, and submerging it in cool water for 10 minutes prior to the dive,
will assist in preventing such condensation. However, even if the lens starts fogging up
at the beginning of the dive due to temperature differences, note that continuing to dive
with it for about 10 minutes should eventually dissolve the fog.
14. It is recommended to use an external strobe when the UWL-400F Lens is mounted on
the housing. The UWL-400F Lens blocks the camera internal flash, resulting in
underexposed or shaded images.
15. When using an external flash or shooting against the sun, there are a few techniques
that should be followed in order to avoid a lens flare, which is often encountered when
using dome ports of any kind due to the reflection of the sun or strobe:
a. Images in which the sun is captured can be usually taken during mornings or
afternoons, when the sun is not as strong as during the middle of the day. In general,
the sun will have a much softer and successful effect during early and late hours of
the day and will also cause less of a flare.
b. Make sure that the strobe is not positioned towards the lens. When shooting a
nearby subject, for instance, it is better to position the strobe a little bit in front of
the camera housing rather than behind it (so the light doesn't reflect on the Wide
Angle Lens), or if you choose to position the strobe behind the camera housing,
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UWL-400F Wide Angle Lens Instruction Manual 20190213
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