Nikon D850, Nikkor 200-800F/5.6 @ 500mm = F/9, ISO 640, 1/1,250 sec. I used my 500mm to isolate the Blue Phacelia Tanacetifolia from the sea of orange poppies yet I still need F/9 for a modicum of depth of field for the group of purple flowers. Subject group maybe 30 yards away. Windy.
Purple wildflowers (Blue Phacelia Tanacetifolia) in a sea of orange