There are many kinds of travel insurance for cameras and computers, but for some products, such as AIA's general travel products, such as "AIA Travel Insurance-Diamond Plan" (/travel/product/travel2-18d1.html), the camera you carry with you is guaranteed.
Meanwhile, business travelers can purchase the plan of AIA Global Business Travel Link (/travel/product/travel49-18d1.html). This series of products will include "notebook computers" in the scope of protection, and of course cameras.
Therefore, it is recommended to buy suitable products according to the actual situation, and pay attention to carrying valuables with you when traveling to avoid losing them. Have a nice trip!