GearFrame Guides
Every component, setting, and dial explained — with real-world examples so you can stop reading manuals and start making great photos.
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Three settings. One perfectly exposed photo. Move the sliders and watch how they interact in real time.
The sensor is where light becomes your photograph. Every photon that makes it through your lens eventually hits this chip. Its size is the single biggest factor in image quality — far more than megapixels. A larger sensor captures more light, which means richer colours, less grain, and that beautiful background blur called bokeh.
Think of it like a window. A full-frame sensor is a floor-to-ceiling window; a phone sensor is a porthole. More light, more information, better photos — especially when the sun goes down.
Beginner tip: Don't chase megapixels. A 20MP full-frame sensor will outperform a 50MP phone sensor every time. Size beats resolution.
Common mistake: Buying the "highest megapixel" camera. More pixels on a tiny sensor just means smaller, noisier pixels.
The shutter is a curtain that opens and closes to expose the sensor to light. Fast speeds (1/1000s) freeze a sprinting athlete mid-air. Slow speeds (1/4s) turn a waterfall into silky, flowing mist. It's one of the most creatively powerful tools you have.
The faster the shutter, the less light enters — so fast sports photography usually demands bright conditions or a higher ISO. It's a constant balancing act between the three exposure settings.
The safe handheld rule: Don't go slower than 1/(your focal length). At 50mm, stay at 1/50s or faster. At 200mm, you need 1/200s minimum.
Common mistake: Blurry photos and blaming the autofocus. Usually it's shutter speed — 1/60s is too slow for a moving child indoors.
Aperture is the opening inside the lens that controls how much light reaches the sensor. A lower f-number (f/1.8) means a wider opening and a blurrier background. A higher f-number (f/16) means a smaller opening and sharper everything.
Aperture also controls depth of field — how much of your image appears sharp. Wide open gives a razor-thin focal plane with a blurred background. Narrow keeps nearly everything sharp from foreground to horizon.
💡 Memory trick: Think of your eye in bright sunlight — your pupil shrinks (high f-number). In a dark room it widens (low f-number). Same principle.
DSLRs use an optical viewfinder (OVF) — light literally passes through the lens and bounces off a mirror into your eye. It's lag-free and natural, but shows no exposure preview.
Mirrorless cameras use an electronic viewfinder (EVF) — a tiny, high-resolution screen showing a live preview. You see exposure changes in real time before you've pressed the shutter. The LCD on the back is an alternative, especially useful for video or awkward angles on articulating screens.
EVF advantage: What you see is what you get — literally. If the EVF preview looks too dark, your photo will be too. Fix it before pressing the shutter.
Before every shot, the camera analyses the light in the scene to calculate the correct exposure. Different modes tell it which parts of the frame to pay attention to. Get this wrong in tricky lighting and your subject will be a silhouette — or a blown-out ghost.
Evaluative metering reads the whole scene and works brilliantly in most situations. Spot metering reads just a tiny circle — pointed at your subject's face, it ignores the bright sky behind them and exposes for the person correctly.
Common mistake: Photographing someone against a bright window and wondering why they're a silhouette. Use spot metering on their face, or dial in +2 exposure compensation.
The mode dial changes how much you control versus how much the camera guesses. Auto mode is training wheels. Programme is smarter Auto. Aperture Priority is the real-world workhorse. Manual is full creative control.
Most photographers land on Aperture Priority and stay there for years. You control the creative look (background blur vs everything sharp), and the camera handles the technicalities. It's not cheating — it's smart.
💡 The upgrade path: Auto → Programme → Aperture Priority → Manual. Start here, work forward.
The memory card stores everything you shoot. Speed matters — a slow card creates a buffer bottleneck when shooting bursts, and can interrupt 4K video mid-clip. The video speed class rating (V30, V60, V90) tells you the minimum sustained write speed.
For most shooters a V30 or V60 from a reputable brand is plenty. Avoid bargain cards from unknown sellers — a corrupted memory card mid-shoot is an irreversible disaster.
Brand matters: SanDisk, Sony, Lexar, Kingston. Avoid unbranded cards — a corrupted card mid-wedding is not recoverable.
128GB is your starting point for RAW. A busy day can fill 64GB easily. Always format in-camera before a shoot, not on your computer.
Common mistake: Relying on one card. Use two where possible — many cameras write to both simultaneously. Back up same day.
Five real-world scenarios. Pick the right settings and see how much you've absorbed.
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