GoPro has seen its action camera market share diminish due to strong competition from rivals like Insta360 and DJI of late. Now, the company is fighting back with a new line of flagship cameras called Mission 1, designed to greatly improve the video quality offered by its current Hero 13 camera . The company also introduced a new Wireless Mic system similar to DJI's Mic Mini, along with a point-and-shoot grip and other accessories.  "The combination of our new 50 megapixel one-inch sensor and ultra-efficient GP3 processor sets a new performance bar for compact cinema cameras, enabling resolutions, frame rates, low-light performance, runtimes and thermal capabilities never seen before in cameras this small," GoPro's senior VP Pablo Lema said in a statement. Sample Photo from GoPro Mission 1 Pro action camera GoPro The new line includes three models: the Mission 1, Mission 1 Pro and Mission 1 Pro ILS.…