Good day, divers. In this video I do an unbiased, unsponsored review of the Inon UCL G55 close-up lens, and I’m blunt about what it is: as of February 2026 it’s the most macro you can get on an action camera, and it’s giving the best-looking macro image I’ve seen from this class of gear. I’ve tested it properly on the Insta360 Ace Pro 2, DJI Action 6, and GoPro Hero 13, and I’m not here to convince you to buy anything—if you don’t want it, don’t buy it. I’m just sharing what I’m seeing after a lot of time underwater actually filming with these cameras. I break down how Inon’s range works (G165, G100, G55) and why I like the bayonet mount system so much more than threaded 67mm lenses underwater. The focusing sticks are a big deal: they take the guesswork out of focus distance, they can act like a little tripod on the sand, and they even help you “steer” a critter’s attention when you need a better angle. I also compare the G55 to your other realistic options—Backscatter MacroMate Mini, AOI UCL-03, 67mm macro lenses, and the Inon G100—using controlled tub tests so you can actually see magnification differences without the ocean variables. The main takeaway: if you want the closest, cleanest macro on an action cam, the G55 is it, but price and difficulty mean the G100 or MacroMate can be smarter starting points.