I recently bought a Pimax 4k - For the sole purpose of playing elite dangerous. I was very discouraged on how dark it was, and the slight blurriness.
After finding this page, I decided to crack it open and remove the lens. I have to say, WoW - the difference is night and day.
I highly recommend if you play Elite Dangerous with a Pimax 4k to follow the simple instructions below, and watch the video. I watched it several times before doing this. I am a wood worker, and don't work with electronics and I was able to do this. I prepped my area the best I could with tools, and made sure to be as dust free as possible.
I had several small bins for the screws and took pictures at every step so I new what screws went where.
Takes 30 minutes - and the results are amazing. Thanks for making this post. I was ready to return this product. But now I'm very happy.