Got given a Nikon D7000 ~3 years back. Try my best to use it but David Bailey I am not .
Recently been noticing issues around auto-focus, with the 'r' errors popping up in the viewfinder when trying to take pics. Rather than trawling through esoteric photography forums which will effortlessly bamboozle me, are there any quick and easy servicing things I should be doing? Or should cameras be taken for a yearly/5-yearly service?
Thanks in advance.