Sharpness vs ISO
Camera was fixed on tripod with 2s timer on when these images were taken. 100% of the original photos were cropped.
Hard Sharpness is rather crispy for all ISO settings. Not much difference could be noted between Soft / Standard Sharpness for ISO between 100-1600 unless the two different images were compared by repeated and careful examination.
From ISO3200 onwards, Soft Sharpness produces better image than both Normal and Hard Sharpness because the latter two settings also increase noise level.