"The Aqua Magenta Filter for the GoPro HERO3+ is our newest and most effective color correction formula yet. We have take all the data inputs from previous magenta filters and improved upon them even further. We bulked up the frame on the new Aqua series as well as over molded the glass for even more strength. The Aqua magenta filter color corrects flawlessly in green water from 8 to 65 feet deep. The filter will securely slide onto the HERO3+ waterproof housing and can be installed and removed in less than a second. The pressure fit is very snug but just in case a tether is included. The new magenta formula makes a huge difference in any green water, whether is be fresh water or salt water. Why Do You Need a Magenta Filter? When diving red light loss causes the cameras white balance to freak out. When diving in green water, when the color red is taken out of the spectrum, the only color left is green! The leaves for some horrible looking lime green footage. Simply throw our magenta filter on there and it reduces excess green colors leaving behind naturally balanced colors. Take a peek at our comparison video below and see what we are talking about.|New Aqua Magenta Color Formula|Glass Lens For Superior Scratch Resistance|Easy Snap on/off Design|Includes: Macro Lens and Microfiber Bag"