For years, I relied on ND/PL filters to enhance the colors coming out of my drones and action cameras. Not that these cameras needed it (except the DJI Neo), I just wanted to squeeze as much quality as possible out of these small cameras. Unfortunately for the Mavic 4 Pro and Air 3S, I've no longer been able to rely on ND/PL filters from any brand because DJI changed something with their telephoto optics, making those drones (in there tele modes) struggle with autofocus with any PL filter attached.Fortunately for the Mini 5 Pro, these ND/PL filters work the way I'm used to them working. No issues with flaring and strange artifacts. No issues with autofocus, even in the 2x zoom mode. No issues operating the gimbal. No strange color cast. All these do is enhance the colors the way I'm used to with drones older than the Air 3 series.I don't really use ND/PL filters to remove reflections on drones because that's a bit of a challenge however, the overall color enhancement is worth it in my eyes, especially for smaller camera sensors. Also, K&F has the best quality filters for the price. They tend to compete well with more established brands like Freewell, PolarPro, and DJI's OEM filters, while usually being cheaper than them as well. I'm guessing the cost savings are with the filter cases. Freewell, DJI, and PolarPro have amazing filter cases that are smaller and more durable however, the cases K&F provide with their filters are still good, albeit slightly oversized.I highly recommend picking these up. These will be replacing my standard ND filters for the time being. Now, I'll just have to wait for K&F to release VND filters for the Mini 5 Pro, so I won't have to swap filters too often.