Confused by photography jargon? This complete A–Z glossary explains over 100 essential photography terms in simple, clear language. Whether you shoot film or digital, understanding these concepts will help you take better photographs with confidence.
A
Aperture – The opening of a lens that controls how much light enters the camera and affects depth of field. A wide aperture (low f-number) creates a shallow depth of field, while a narrow aperture keeps more of the scene in focus. Learn more in the photography guide for beginners.
Autofocus – A system that automatically focuses the lens on a subject.
Aspect Ratio – The proportional relationship between the width and height of an image.
Ambient Light – Natural light available in a scene without added lighting.
Aliasing – Visual distortion that appears as jagged edges in digital images.
B
Bokeh – The aesthetic quality of out-of-focus areas in a photograph.
Bracketing – Taking multiple images at different exposures to ensure correct exposure.
Burst Mode – Shooting multiple frames in quick succession.
Backlighting – Lighting coming from behind the subject.
Black and White Photography – Photography without colour, focusing on contrast, light, shadow, and texture. Learn more in the black and white photography guide.
C
Composition – The arrangement of elements within a photograph.
Contrast – The difference between light and dark areas.
Crop – Removing parts of an image to improve framing.
Chromatic Aberration – Colour fringing caused by lens imperfections.
Catchlight – A reflection of light in a subject’s eyes.
D
Depth of Field – The area of an image that appears in focus. A shallow depth of field isolates a subject, while a deep depth of field keeps more of the scene sharp. Learn how to control it in the photography guide for beginners.
Dynamic Range – The range between the darkest and brightest parts of an image.
DSLR – A digital camera using a mirror system.
Digital Noise – Grain-like distortion in images, often at high ISO.
Double Exposure – Combining two images into one frame.
E
Exposure – The amount of light that reaches the camera sensor, controlled by aperture, shutter speed, and ISO. Learn how these work together in the photography guide for beginners.
Exposure Compensation – Adjusting brightness manually.
EV (Exposure Value) – A number representing exposure level.
Editing – Adjusting an image after capture.
Electronic Viewfinder – A digital display used for composing images.
F
Focal Length – Determines magnification and field of view.
Focus – Adjusting sharpness in an image.
Film Photography – Capturing images using photographic film rather than a digital sensor. Film introduces grain, dynamic range differences, and a slower, more deliberate process.
Start with the film photography guide, or explore choosing the right film for different shooting styles.
Flash – Artificial light used to illuminate a subject.
Frame Rate – Number of frames captured per second.
G
Golden Hour – The soft, warm light shortly after sunrise or before sunset, ideal for landscape photography. See golden hour photography tips.
Grain – Texture in film or high ISO images.
GND Filter – A filter used to balance exposure between sky and foreground.
Glare – Harsh reflected light.
Gamma – Tone curve of an image.
H
Histogram – A graph showing brightness levels in an image.
Highlight – The brightest areas in a photo.
HDR (High Dynamic Range) – Combining multiple exposures.
Hot Shoe – Mount for flash or accessories.
I
ISO – The sensitivity of your camera sensor to light. Higher ISO allows shooting in darker conditions but introduces noise. See low light photography settings and night photography techniques.
Image Stabilisation – Reduces blur from camera shake.
Infinity Focus – Focusing at a very far distance.
Image Sensor – The part of the camera that captures light.
J
JPEG – A compressed image file format.
Juxtaposition – Placing contrasting elements together.
JPEG Artifacts – Distortion from compression.
K
Kelvin – Measurement of colour temperature.
Key Light – The main light source.
Kick Light – Light placed behind a subject.
L
Lens – Optical component used to capture images.
Long Exposure – Using a slow shutter speed to capture motion over time, often used for water, clouds, or low light scenes. See slow shutter speed photography techniques.
Leading Lines – Lines that guide the viewer’s eye.
Low Light Photography – Shooting in minimal light.
M
Manual Mode – Full control over camera settings.
Macro Photography – Close-up photography of small subjects, see my mushroom macro photography.
Metering – Measuring light for exposure.
Mirrorless Camera – Camera without a mirror system.
N
Noise – Grain or distortion in an image.
ND Filter – A neutral density filter that reduces the amount of light entering the lens, allowing for slower shutter speeds in bright conditions. Commonly used in long exposure photography techniques.
Natural Light – Light from the sun or environment.
O
Overexposure – Too much light in an image.
Optical Zoom – Zoom achieved through lens movement.
Off-Camera Flash – Flash not attached to camera.
P
Perspective – The spatial relationship in an image.
Prime Lens – A lens with fixed focal length.
Post-Processing – Editing after capture.
Portrait Photography – Photographing people. See:
https://fineartpics.co.uk/jason-reading-photography
Q
Quiet Shutter – Reduced shutter noise.
Quick Release Plate – Mounting plate for tripods.
R
Rule of Thirds – Dividing an image into a 3×3 grid.
RAW Format – Unprocessed image file.
Reflector – Used to bounce light.
S
Shutter Speed – How long the camera shutter stays open, affecting both exposure and motion blur. Faster shutter speeds freeze motion, while slower speeds create movement and blur effects.
See slow shutter speed photography techniques.
Silhouette – Dark subject against bright background.
Spot Metering – Measuring light from a small area.
T
Telephoto Lens – Lens for distant subjects.
Tripod – Stabilises the camera.
Time-Lapse – Sequence of images over time.
U
Underexposure – Too little light.
UV Filter – Reduces haze.
V
Viewfinder – Used to frame an image.
Vignetting – Darkening at edges.
W
White Balance – Adjusting colour temperature.
Wide Angle Lens – Captures a wide field of view.
Workflow – Your editing process.
X
X-Sync – Flash synchronisation speed.
Y
Yellow Filter – Enhances contrast in black and white photography.
Z
Zoom Lens – Variable focal length lens.
Zone System – Exposure technique for tonal control.
Learn More Photography Basics
If you want to go deeper, explore the full collection of film and landscape photography guides, including film photography, black and white photography, and low light settings to build a stronger understanding of how these concepts work in real-world shooting.
This article is part of my Photography Guides hub series.
