Photo editing and printing. When does 16 bit or 8 bit still matter? How much worse is 8 bit printing

Does working in 16 bit for your photo editing, saving and printing really make a significant difference. Does 8 bit or saving as a JPEG file really cause problems? Exporting for print - TIFF or JPEG?

My original article about colour to B&W conversions looks at how 8 bit colour files can give the equivalent of 10 bit greyscale images - then best stored as 16 bit greyscale.
https://www.northlight-images.co.uk/d...

For a full index of all my videos, see:
https://www.northlight-images.co.uk/k...
-----------------
If you'd like to make a small donation, I have a Kofi page:
"Buy me a coffee" https://ko-fi.com/keithcooper
-----------------
My articles and videos are always free to access.
Any help with running this channel is gratefully received.
-----------------
I also have some affiliate links which earn me a commission if used.
US Amazon photo/print gear: https://amzn.to/3l9vJC6

B&H Photo: https://www.bhphotovideo.com/?BI=2008...

Adorama: https://www.adorama.com/?utm_source=r...