Gates Underwater Products EX1R Setup, Use And Care Manual page 19

Using the SP44 Dome Port
Optically speaking, the SP44 Dome Port is positioned in the best possible location for
the EX1R camera. That is, the spherical center of the dome is coincident with the
entrance pupil of the lens at full wide. This practice is used for all Gates housings and
historically results in no observable loss of image quality.
Despite this, the EX1R and SP44 Dome Port optical combination can result in soft
images if certain precautions are not taken. Any of the following options are available
when using the SP44 Dome Port to achieve sharp images.
• Camera Settings: Users should employ camera settings that maximize
sharpness/resolution/focus. Small iris (f8 or higher), Macro Mode ON (always
recommended regardless of port) are best. Sharpness is nearly 100% with these
settings.
• +1 Diopter: To gain 100% image sharpness when using the SP44 dome port, the
addition of a + 1 diopter is recommended. The flip diopter is standard on every EX1R
housing and can be employed at any time.
Gates Underwater Products, Inc
13685 Stowe Drive • Poway, CA • 92064 • 858.391.0052 • 800.875.1052 • Fax 858.391.0053
Customer.srvc@GatesHousings.com • www.GatesHousings.com
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