LET'S GET SOMETHING STRAIGHT. I am not a professional photographer. I'm not even a photography MAJOR. I hardly started studying a year ago, and for the entire beginning of my studies I assumed I could figure out ISO, Aperture, and Shutter Speed as I went along and figured out how to make pictures look good. But after taking an actual class that explained what those three were for and how to adjust them, I felt like I had significantly more control over my images. No. You CANNOT autofocus through this. I'll try to be interesting *awkwardly lights sparklers* SPEAKING OF LIGHTING (look at that smooth transition) You cannot have a picture without at least SOME LIGHT. If youre in a somewhat dark room or outside an a hecka bright day, ISO is what'll help you with that. You basically just tap dat ISO button on your control cluster and choose from large numbers or smol. The darker the room, the larger the number you choose should be. HOWEVER. If you do that, beware of more grain!!! Usually to refrain from going that route, I use my aperture. You control aperature(aka fstop) with BOTH the main dial and exposure comp button! Its main function is to control the depth of field. Which basically means: yo. do you want to be able to see the sexy landscape behind the person WHILE the person in in focus? Or just the person and the background is blurry? But I often sacrifice this because I dont want grain when shooting in a dark room and I dont have a tripod handy for shutter speed. Shutter Speed really speaks for itself. The speed of the camera. *shrug* Will determine if things will be blurry if they're too fast for the camera to catch or not, and you control the shutter speed with just the main dial. I usually opt for the fastest setting Im allowed since I usually try to take candid pictures and I have to catch quick little moments. However, if the camera speed is slower, then it'll give light time to enter the lens, brightening your image even more. All of this must be having you wondering, how do I know when my image is bright enough, too dark, or how does each setting affect one another? Well, in the view finder (at least of my camera) you look in and along the bottom theres a little bar when you hold your shutter release button down halfway. You want the little line that travels up and down it to only be in the middle. If you have it there, it means your image should be good! Changing one setting will move the bar, but if youre at the speed you like, then changing either the iso or fstop will get you back to where you need to be! Of course, you can always check by taking a picture and seeing how you like it, but that bar give you something to base your settings off of. Ah. This post got long and I dont know if it even helped......But best of luck to ya! It's hard to explain when not having a camera in hand but a bit of practice on your own coupled with knowing this little bit may go a long way! ~ Lani 📸 Instagram: @SoCalStyleCollective 📲👍