---
watermark: ORIRO
disable-model-invocation: true
name: creative-photography
provider: ORIRO.ai
copyright: Copyright (c) 2026 ORIRO.ai
description: >


  Photography — exposure triangle, composition, lighting, camera settings, and photo editing basics.




  Sources: Open educational resources, Canva Design School, MIT OCW Architecture, design classics.
---

# Photography

## The exposure triangle

Three settings that control exposure (how much light hits the sensor):

**ISO:** Sensor sensitivity to light.
Low ISO (100-400): Clean image. Use in good light.
High ISO (1600+): Noisy/grainy image. Use when light is low.
Exposure rule: Use lowest ISO that gives correct exposure.

**Aperture (f-stop):** Size of lens opening. Controls light AND depth of field.
f/1.4-f/2.8: Wide open. Lots of light. Shallow depth of field (background blur). Portraits.
f/8-f/11: Small opening. Less light. Large depth of field. Landscapes.
Counter-intuitive: Small f-number = wide aperture = more light.

**Shutter speed:** How long sensor is exposed to light.
Fast (1/500s+): Freezes motion. Sports. Needs good light.
Slow (1/30s or slower): Blurs motion. Needs tripod to avoid camera shake.
General rule: Shutter speed ≥ 1/focal length to avoid blur (1/50mm lens = 1/50s minimum).

**Exposure triangle balance:** Changing one setting requires changing others to maintain correct exposure.
Darker scene: Open aperture OR lower shutter speed OR raise ISO.
Use aperture priority for control over depth of field.
Use shutter priority for control over motion.

## Composition

**Rule of thirds:** Divide frame into 3×3 grid. Place subjects/horizon on the lines or intersections. More dynamic than dead center.
**Leading lines:** Roads, fences, rivers that lead the eye through the frame.
**Framing:** Use elements in the scene (door, window, trees) to frame the subject.
**Foreground interest:** Include something close in landscape shots for depth.
**Negative space:** Empty space around subject draws attention to subject.
**Patterns and repetition:** Find them; then find one element that breaks them.
**Golden hour:** 30-60 min after sunrise and before sunset. Warm, directional light. Best for most subjects.

## Lighting

**Direction:**
Front light (on-axis): Flat, even, shows color. Lacks drama.
Side light (90° off-axis): Reveals texture and shape. Dramatic.
Back light (behind subject): Creates silhouette or rim light.
**Quality:**
Hard light (small source, direct sun): Sharp shadows, high contrast.
Soft light (large source, overcast sky): Diffuse shadows, flattering for portraits.
**Modify light:** Move closer to light source to make it relatively larger and softer. Reflector to fill shadows.

## Camera basics

**Auto vs. manual modes:**
P (Program): Auto exposure, some control. Safe starting point.
Av/A (Aperture Priority): You set aperture; camera sets shutter. Best for most situations.
Tv/S (Shutter Priority): You set shutter; camera sets aperture.
M (Manual): You control everything. Best when auto fails.

**Focus:** Auto-focus modes: Single AF (static subjects), Continuous AF (moving subjects). Focus point selection matters.

## Basic editing workflow

**Exposure correction:** Fix overall brightness first.
**White balance:** Correct color cast (too orange = tungsten; too blue = daylight/cool).
**Shadows and highlights:** Recover detail in both.
**Contrast:** Add punch but don't overdo.
**Clarity:** Adds midtone contrast. Use sparingly.
**Saturation vs. Vibrance:** Vibrance selectively boosts less-saturated colors. Safer than saturation.
**Sharpening:** Moderate; only sharpen edges, not smooth areas.
**Noise reduction:** Required for high-ISO images.
**Crop and straighten:** Last step.

Sources: Cambridge in Colour (cambridgeincolour.com — free, comprehensive), Digital Photography School (free), DPReview education (free), Scott Kelby Lightroom guides (principles)