I had the fortune to test the Crystal Super Standard 50PPD and the Crystal Super Ultrawide 50PPD in comparison and made some very interesting findings.
Pimax offered me to try the Ultrawide Module and to decide wether I would exchange it for my Standard 50PPD Module I had since last year.
Of course I tested the FOV of the Ultrawide just to find out that it is exactly the same as with the Standard 50PPD Module. Which was quite disappointing.
I had tested it with contact lenses but switched to my glasses the other day and had the feeling that the FOV is much bigger now. So I tested with WIM FOV and the results were very interesting!
The Results (My IPD: 64,5 / Glasses and Lenses: -3,75 Right Eye and -2,5 Left Eye)
Results Contact Lenses
50PPD Standard: HFOV: 115° VFOV: 101°
50PPD Ultrawide: HFOV: 116° VFOV: 102°
Results Glasses
50PPD Standard: HFOV: 124° VFOV: 108°
50PPD Ultrawide: HFOV: 130° VFOV: 109°
So it turns out:
- I have a much bigger FOV with Glasses than with Contact Lenses in general.
- The gain in HFOV with the Ultrawide is only possible with glasses, while with Contact lenses it stayed the same.
I also tested maxing out the IPD to 72 with both: With the Standard 50PPD 124° was the maximum even with IPD set to 72, while with the Ultrawide I achieved 138° but it was not usable due to blurred image and a lot of barrel distortion.
So the Ultrawide kind of makes a bigger FOV generally possible but only for people with a very big IPD or glasses. Strange!
I always thought that you would loose FOV with glasses but it is quite the opposite. ChatGPT expained it, that with canted lenses like the Crystal Super, some outer light beams normally miss the eye but the glasses kind of bend them so they reach your eye. Dont know if this true but I tested many times and the results were always the same as discribed above.
Did somebody else make similar experiences with glasses?