I've been thinking, Pimax should offer (for the 8k) swap able lenses as a stretch goal, meaning a different set of lenses for variable FOV choices dependent on the use case.
Imagine if 1 set of lenses was provided for the 200 degree FOV ( the default lenses for the 8k) and another set could be created to offer a 110 degree FOV on the 8k for more current VR and media consumption.
What would be the purpose?
A second set of optics designed for 110 degree fov with the 4k screens per eye would be much more conducive to watching movies and using the HMD in VR apps like Virtual Desktop or big screen. 4k per eye at 110 degrees would mean we would really leverage the resolution of both panels, and their PPD in a way that will make the HMD suitable for monitor replacement, movies, current VR games etc.
This would also extend the life of the HMD quite significantly.
You can all see the benefit of what I'm talking about in the image below
If swappable lenses (meant for 110 degrees FOV) were provided for the 8k, each 4k screen per eye would get approximately 45 pixels per degree (a total of approximately 3 times the PPD over current HMDs. lower FOV = higher pixels per degree across both eyes. See what the smaller FOV would mean?