@skywaystelios I shoot a Nikon D750, love it! I bought it because I had been shooting on a Nikon film camera. I can interchange lens between both digital and film, that is nice. With Nikons amazing technology, it is hard not to shoot in auto mode.

Learning which shutter speed, ISO and f/stop to choose to get a good images is the never ending learning experience of the photographer. That is why camera companies came out with automatic settings, manual settings is a hard concept to get. How you determine the settings are situational to the outcome you want.

I have am about to start two presentations for my photo club on short and long exposure time. I will do a posts in this community with the same information.