Product Highlights         Depth Rating: 200' Ikelite 5-Pin Bulkhead Strobe Connector Manual Flash Exposure, TTL Optional Mechanical Controls Access to All Essential Camera Functions White ABS/Polycarbonate Body, Clear Back Interchangeable DL Lens Port System Ships Without Required Lens Port Vacuum Valve Included Made in the USA Capture brilliant images of the aquatic world with your Sony A9, A7 III or A7R III in Ikelite's 200DL Underwater Housing with Dry Lock Port Mount, which has a depth rating of 200'. An Ikelite bulkhead with a manual hot shoe connection enables reliable electrical triggering of optional external strobes via sync cords. The use of an optional TTL hot shoe and converter will allow for TTL operation with compatible Ikelite DS strobes; non-Ikelite strobes will still work in manual mode only.Ergonomic mechanical controls, including push-buttons, dials, and levers, afford access to all essential camera functions. Built for durability, the enclosure is made in the USA from a corrosion-resistant polycarbonate and ABS plastic blend. It is white on the front, top, sides, and bottom, but clear in the back to allow you to monitor the O-ring seal and maintain your view of the camera's rear controls. The supplied aluminum tray with a left-hand quick-release grip affords improved balance and handling, while offering an attachment point for an optional lighting arm.This housing ships without a required lens port, and accepts various, interchangeable dome and flat ports for an array of lenses. For full compatibility details, see the port chart. The Dry Lock (DL) port system accommodates lenses with large diameters, and provides added security against leaks at the surface, thanks in large part to the included vacuum valve for checking watertight integrity before the dive. You'll need to pick up the required pump in order to remove excess air and actually create a vacuum.                          Construction Details     Depth rating of 200'Two double-passivated, stainless steel locking latches are corrosion-resistant and virtually unbreakableHousing is made by hand in the USA from a corrosion-resistant polycarbonate and ABS plastic blendWhite on the front, top, sides, and bottom to reflect sunlight and keep the camera cool when shooting on or above the water's surfaceClear in the back to allow you to monitor the O-ring seal and maintain your view of the camera's rear controlsHousing alone has nearly neutral buoyancy in fresh water, though your choice of lens and port may change the overall buoyancy of the systemOpen-groove design suspends the rear O-ring in the natural position, making maintenance easier and preventing accidental twisting or stretchingFront-loading mounting plate enables quick camera installation, and does not need to be removed in order for you to gain battery or memory card accessMounting plate has a 1/4"-20 threaded hole on the bottom for connection to an optional tripod                                                  ...