How do I get my YI 4K Action Camera focused?
YI Action Camera 4K features a 155-degree FOV, and YI Action Camera 4K features a very deep Depth-of-Field which can virtually cover from selfie photography distance to infinity photography. Similar to other action cameras, the focus distance of YI Action Camera 4K is fixed, and not adjustable. We think this fixed focus distance lens is the best choice for the YI 4K Action Camera as it balances image quality, toughness, and small size.
To get maximum resolution at very near field photography, such as 10cm (4 inches), we recommend using a close-up lens from 3rd party.