Camera terms for beginners.
Aperture
Opening size controlling light and depth of field.
Shutter speed
How long the sensor is exposed to light.
ISO
Sensor sensitivity to light.
Exposure
Total light reaching the sensor.
Depth of field
How much of the scene is acceptably sharp.
Focal length
Lens angle of view (mm).
White balance
Correcting color temperature.
Composition
Arrangement of elements in the frame.
Rule of thirds
Guideline placing subjects on thirds grid.
Bokeh
Aesthetic quality of out-of-focus areas.
Raw file
Unprocessed sensor data format.
Histogram
Graph of tonal distribution.
Noise
Grainy artifacts from high ISO/low light.
Tripod
Three-legged support for stability.