photographysss

Exposure Triangle

The combination of three settings—Aperture, Shutter Speed, and ISO—that determine the brightness and visual characteristics of a photograph.

Aperture

Controls the size of the lens opening; it affects the depth of field and the amount of light entering the camera.

Shutter Speed

Controls the duration the camera sensor is exposed to light; it determines how motion blur or frozen action appears.

ISO

Controls the sensor's sensitivity to light; higher values increase brightness but also introduce image noise (graininess).

Recommended Settings: Working Indoors

• Aperture: Wide (f/1.8 to f/4)
• Shutter Speed: Medium-slow (1/60s to 1/125s)
• ISO: 400 to 1600+

Recommended Settings: Outdoors (Daylight)

• Aperture: Varies (f/8 to f/16 for deep focus)
• Shutter Speed: Fast (1/250s to 1/1000s+)
• ISO: Lowest possible (100 or 200)

Recommended Settings: Capturing Movement

• Shutter Speed: Very fast (1/500s or faster)
• Aperture: Wide (f/1.8 to f/5.6)
• ISO: Adjusted for exposure, prioritizing shutter speed.

Depth of Field (DoF)

The range of distance within a photo that appears acceptably sharp.

Shallow Depth of Field

A technique where the subject is sharp and the background is blurred (bokeh); achieved with a wide aperture (small f-number like f/1.8).

Deep Depth of Field

A technique where the entire scene from foreground to background is sharp; achieved with a narrow aperture (large f-number like f/16).

Rule of Thirds

A compositional technique where the image is divided into a 3 \times 3 grid, and subjects are placed along the lines or at intersections.

Leading Lines

Using linear elements within a scene (e.g., roads, fences) to guide the viewer's eye toward the main subject.

Negative Space

The empty area surrounding the main subject, used to create balance, minimalism, and emphasis.

The f-stop Paradox

A counter-intuitive scale where a smaller f-number (e.g., f/1.8) represents a wider lens opening, and a larger f-number (e.g., f/22) represents a narrower opening.