The length of the funnel or the diameter of its aperture can be changed to change the size of the diameter of the spotlight depending on the size of the subject or the shooting distance . In addition , there are different types of cables and connections that are used to connect and control flash lights , as well as switching connections that allow a flash of one type to be installed on an outlet or connection of another type , or branch connections that allow more than one flash light to be installed on one port . Where the flash lights are installed on hinged arms on the side linked to the waterproof cover and allow change of position , angle as well as length ( by adding or removing sections of the arm ). These arms must be chosen to be durable , with fixed and easy-to-tight joints to withstand the currents .
11th ISSUE
Focus Flashlights Due to the difficult lighting conditions and the scattering of light underwater , most cameras struggle with automatic focus adjustment , as the underwater camera tends to search unsuccessfully for the correct focus hunting , and for the assistance of the camera systems . To successfully adjust the focus , special lights can be used that illuminate the scene before the photo is taken ( unlike flash lights that only work when you press the shutter button ). Where these lights are installed on the waterproof cover or on the arms of the flash lights , and some can be charged externally without the need to open it . Red light can also be used to photograph neighborhoods that are afraid of light . In most cases , focus lights do not affect the lighting of the scene or the brightness of the image because the flash lights are much stronger than them , which makes them neglectful in the final image . However , some lights are available with a photosensitive cell that can be set to turn off automatically when the main flash light starts .
DIVENTURES MAGAZINE
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