This was the very first aerial 360
panorama that I made with the Ricoh GR, a camera with an
APS-C sensor and fixed 28mm lens equivalent. It took more than
half a year between this panorama, and the one I made previously with the Go Pro Hero
3+ (my first aerial pano ever), because I had to
figure out to mount the Ricoh GR so that it could be
controlled in flight. I think you'll agree that
the improvement in image quality is impressive - I don't
think a DSLR does really better.
A lot of it comes from the longer focal length (28mm
vs. 14mm fish-eye). However, if you zoom all the way,
you'll also notice the much better pixel-level sharpness
despite the high ISO 1600 required to keep the shutter speed
at 1/800s at sunset.