DJI Osmo Action 4 - We explore what Long Exposure shutter timings to use to avoid Hot or dead pixels

Over the past few video releases, we kept focusing on our frustrations and how bad DJI service is when we discovered dead or hot pixels in our brand new, days-old, DJI Action 4 camera. The hot or dead pixels also happened on a subsequently a loan unit from service center, and another brand new DJI Action 4 camera that we bought again just to prove its not a dud unit that we've gotten. It does seem like it is a product-wide flaw as more and more people stepped up to verify this problem. We can only wait for a firmware fix, but at this point in time, it seems like DJI doesn't want to acknowledge and address this issue. No point in trying to make a fuss and be irritated with a flawed camera, we learn to workaround its limitations. One lesson we learnt from this bad experience is never to buy another DJI product again unless we really need a certain feature to the point that we are willing to forgo any possible warranty services. Caveat Emptor is the only advise we can give for those wanting to get a DJI Action camera. They are good for what they do, at a recreational or for-fun basis

Lamenting aside, the gist of this whole test and review is to stay below 8 seconds exposure timing, or even better, stay around 5 seconds is safe. Let us know what you think, and if you unit have hot pixels too.