[stefncb]

Out of curiosity, what for?

[thanatos519]

I render accumulation fractals like the Buddhabrot at 32 bits per channel. So far I have only used about 27 bits but it's nice to have a bit of headroom.

[actionfromafar]

I have a pipeline for scanning of analog sources like film. Since these are meant to be edited after scanning, 8-bit range is much to limited.

[dylan604]

Not the OP but as an example, the difference between 8-bit and 10-bit on visual complexities like gradients are very noticeable.