Nighttime
I remember getting my first DSLR and though it was far from top of the line, I was absolutely gobsmacked when reviewing my first night shots. The enjoyment that comes from making pictures in extremely low light is getting to see, through your camera, what you eyes otherwise couldn’t. Nearly anywhere on the planet, you could stare into the abyssal black, open your aperture, set the timer and get a glimpse into what your eyes alone could not show you.