Lessons

As I dive deeper into my online photography course course.  I’ve just completed Lesson #10 on Exposure.

So, what exactly is exposure?

At its simplest, exposure refers to how light or dark your photo appears. It’s all about how much light your camera’s sensor captures when you take a photo. Too much light? Your image is overexposed (washed out or too bright). Too little light? It’s underexposed (too dark with lost detail).

But exposure isn’t just about brightness—it’s about balance. It helps preserve the details in both the shadows and highlights of your image.

Exposure is controlled by what photographers call the Exposure Triangle, which includes:

1. Aperture (f-stop):
   This is the size of the lens opening. A wide aperture (like f/1.8) lets in more light and creates a blurry background—great for portraits. A narrow aperture (like f/16) lets in less light and keeps more of the scene in focus.

2. Shutter Speed:
   This controls how long the sensor is exposed to light. A fast shutter (like 1/1000 sec) freezes action, while a slow shutter (like 1/10 sec) allows for motion blur and is better in low light—but you’ll need a steady hand or a tripod.

3. ISO:
   This is your camera sensor’s sensitivity to light. A low ISO (100) means less sensitivity and cleaner images. A high ISO (1600+) helps in dark scenes but can introduce noise or grain.

🎯 Think of it like this:
Aperture = how much light enters
Shutter Speed = how long the light hits the sensor
ISO = how sensitive the camera is to that light

Getting a well-exposed photo means finding the right balance between these three settings based on your lighting conditions and creative goals.