The three main light settings in photography.

First off I would like to say that these setting will get you good lighting not an award winning photo.

Alright.

The three main things that will make a good photo (in terms of lighting) are:
-ISO (ASA)
-Shutter speed
-Apature (F-Stop)

Starting with ISO

ISO is how sensitive the image sensor is to the amount of light present. The higher the ISO, the more sensitive the image sensor and therefore the possibility to take pictures in low-light situations.

However, the more ISO the more grainy the photo. And when I say grainy I mean having little dots on the photo.

BUT that can create a really cool effect depending on how you use it.

Shutter Speed are really cool.

Shutter speed is the amount of time the shutter is left open for. 

So for example.

If I were to set up a tripod at a night carnival and point at a Ferris wheel and set my shutter speed to 5-8 sec. I will get a really cool effect of the Ferris wheel in a blur (because its moving) and the rest of the carnival not blurry at all.
(I would set it at 10 sec shutter, around f.15 and ISO 100-400)
Play around with shutter speeds and experiment! You never know until you try! 


Lastly F-Stop
If you own a camera or are in touch with one, definitely try out different f-stops.
Why you ask?
The definition of F-stop or apature ring/ apature is the focal ratio.
If I were to have a big F-stop like f.22 then I would probobly get a really dark photo depending on your light conditions. But make your shutter speed 1/30 of a second and ISO 800 then you will get a photo that will not have a tight depth of field but a wide one. It'll make it have almost no depth of field. 


And always remember. If you change a setting on your camera always make sure your shutter speed, f-stop, whatever, will match up with the other light settings.


That's it 
Enjoy!

P.S. If you have anything to ask, I'm mostly always here.