Hello there and welcome to Just Answer. My name is ***** ***** I will be assisting you today. I am an engineer with over 30 years of electrical and electronic training, repair and installation experience. I will try and answer your question accurately and precisely so that we can get you on your way.Nikon guy here but fully versed on the T5.
I need to gather some more information from you in order to help.
You are in full manual mode and are wondering why the aperture display in the optical viewfinder is not moving? Is that correct?