Why am I getting color bands at high ISO's?

by STAIN   Last Updated May 16, 2018 14:18 PM

I have an old Nikon D80 with me. When I shoot with higher ISO, like 800, vertical color bands are produced in the image.

Why does it happen and is there any way to eliminate it?

example

on Google photos

Image taken at f/29, 1/160, 44.00mm



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