akosh
lvl.2
Flight distance : 898396 ft
Hungary
Offline
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I recently switched from a Spark to an Air 2 and I was surprised that the Air 2 can get away with only 26 photos for a sphere, compared to the 46 photos of the Spark (while having similar FOV). So I looked a little bit into it and it seems like the Spark had a probably unnecessarily large overlap. Let me just share my findings, maybe you'll find it useful.
This is from the Spark, circles show the centers of the images, I highlighted two to see the overlap. I actually tried stitching the panorama without the entire second row (28, 31, 35, 39, ...), giving only 34 images, and it still worked perfectly.
And the one below is with the Air 2.
Air 2
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