100% linear 32bit workflow, full EV range, 20k resolution.
USE UNCOMPRESSED 32bit "ORIGINAL FILE" FOR THE BEST RESULT.
12:00, Summer, sunny. Empty field in a small village surrounded by young pine trees.
Sun is unclipped, so in Cycles, you don't need any light source, other than this HDRI for realistic shadows.
Camera background photos and color-graded JPG panorama: https://photos.app.goo.gl/eNJ9t8AShrjmQUYQ9
Methodology: 7 expositions of the environment with 1,66 EV spacing (140 photos) + 7 expositions with 1,66 EV spacing of only the sun with ND1000 (10 stops) filter and ND1000 stacked with ND4000 filter (10+12=22 stops).