Start · Module 1Topic · 5 min

Types of camera

Lesson 3 of 12

The short version

Cameras come in families: phones, compacts, bridge cameras, DSLRs, mirrorless cameras, and medium- and large-format cameras. Each family is good at different things. Knowing which is which helps you pick the right one for a job, or decide whether you even need a new one.

A camera family is a group of cameras built the same way: a similar sensor or film size, a lens that comes off or doesn’t, and a particular way of looking at the scene. The family sets the limits; your skill decides how close to them you get.

Meet the families

FamilySensor or filmLensGreat at
PhoneSmall; a few use 1-inch typeTwo to four built-in lensesWide, bright scenes and instant sharing
CompactSmall up to 1-inch; premium models largerBuilt inPocketable travel and street
BridgeUsually small or 1-inchBuilt-in long zoomDistant subjects without changing lenses
DSLRMostly APS-C or full frameSwappableOptical viewing, long battery life
MirrorlessMostly Micro Four Thirds up to medium formatSwappableMost new systems; previews the exposure
Medium formatBigger than full frame, digital or filmSwappable on mostLandscapes, studio, very fine detail
Large format (view camera)Sheet film, such as 4 × 5 inch, or a digital backSwappable, on bellowsArchitecture, landscape, slow careful work
LENS COMES OFFLENS BUILT INDSLRMirrorlessView cameraCompactPhoneBridgePhones1-inchMFTAPS-CFull frameMediumLarge
Figure 1. Each family uses a different range of formats. Compacts and mirrorless cameras cover the widest spread; view cameras take large format.
A hand holding up a smartphone in front of a cliffside village by the sea, the scene framed on the phone screen
What to notice: The phone frames a wide, bright scene easily. That is exactly the kind of picture phones are brilliant at.
Several smartphones laid side by side, showing different clusters of two to four camera lenses on their backs
What to notice: Count the lenses. Each one is a separate fixed camera; zoom settings between them are made by cropping.
A small black pocket compact camera with a built-in zoom lens, lying on a white surface with its wrist strap
What to notice: A compact: one built-in zoom lens and a body that fits a jacket pocket.
Close-up of a camera body with no lens fitted, the sensor visible inside the metal lens mount
What to notice: An interchangeable-lens body without its lens. The metal ring is the mount, where any lens made for that mount locks on.
A Hasselblad medium-format camera body on a tripod seen from above, with a digital back fitted at the rear whose small screen shows a histogram
What to notice: Medium format: this classic body wears a digital back, a sensor unit that clips on where a film holder would go.
A person adjusting a large bellows camera on a tripod beside a window: the lens sits on a front panel joined to the back by a folding bellows
What to notice: A view camera: the lens on the front and the film or sensor at the back are joined by flexible bellows, and on many view cameras they can tilt and shift.

How to choose

  1. Name the subject and how far away it is. Wide scenes close by suit any camera. A distant bird or a performer on a big stage needs real zoom: a bridge camera or a swappable-lens camera with a long lens.
  2. Check the light. Bright daylight flatters small sensors. Dim rooms and night streets favour bigger sensors, which catch more light.
  3. Check the zoom is real. A phone’s 3× or 5× lens is a true lens only at that exact setting. In between, the phone crops and enlarges the picture.
  4. Be honest about weight. A camera left at home takes no pictures. On a long walk, the phone in your pocket can beat the big kit in the car.
  5. For swappable lenses, think long term. You are buying into a lens mount, and lenses often outlast camera bodies (see Lesson 8).

Easy traps

  • Choosing by megapixels. Sensor size, lens and light usually matter more.
  • Reading a phone’s biggest zoom number as optical. Check which settings have their own lens.
  • Thinking one family is “for professionals”. Pros use phones, compacts and view cameras too. Each is a tool.

Finn tip: Your phone is a superb second camera. Give it the wide, quick shots and save the bigger camera for distant, dim or moving subjects.

Key takeaways

  • Each family has its own strengths: sensor size, lens flexibility and how you see the scene.
  • Match the camera to the subject’s distance, the light and what you will actually carry.
  • Medium and large format trade speed and size for detail and control.

Try it now · 10 minutes

List every camera you own, phone included. Next to each, write one subject it would handle brilliantly and one it would struggle with. Then go and shoot the brilliant one today. Can you spot which camera you have been under-using?