Compare the Best Compact CamerasOctober 2020

There are five main camera types that you will need to decide between when choosing a new camera - each have their own advantages and disadvantages and which one is right for you will depend on what type of photos you plan to take and what you aim to get out of your photography. These are Compact, SLR, Bridge and System cameras. Here we will concentrate on compact cameras.

Image Sensors Explained

Megapixels & Sensor Size

Bigger sensors require physically bigger cameras and also bigger lenses to gather enough light to cover the sensor. For this reason the biggest sensors tend to found on the biggest cameras such as the DSLRs. This is also the reason why mobile phone manufacturers use very small sensor sizes.

The physical size of the sensor is described in many different ways including fractions and letters. Unfortunately it is not easy to relate these sizes to one another, but the chart to the left provides a guide and shows how each sensor size relates to the size of traditional 35mm film.

Full frame sensors are sensors that are physically the same size as traditional 35mm film. Full frame sensors are desirable because they capture very detailed images, but also because they are directly compatible with the huge range of lenses designed for 35mm film. There are plenty of DSLR cameras with sensors which are smaller than full frame. These cameras can still be used with 35mm lenses, but the smaller sensor size means that a conversion factor will apply to the lens. For example if a camera with non-full frame sensor has a conversion factor of 1.5 then a 200mm lens will behave like a 300mm lens, which is great if you want to be closer to the action, but not so good if you need a wide angle shot.

Optical vs Digital Zoom

Camera Screens

Viewfinders

Traditional cameras have optical viewfinders. This means that the image viewed through the viewfinder is exactly the same as the image that camera will photograph. Optical viewfinders reflect light entering the camera's lens off a mirror and into the viewfinder. When the photo is taken the mirror quickly flicks out of the way to let the sensor receive the image. All top end DSLRs have optical viewfinders. Some cameras have digital viewfinders which are basically a second very small screen viewed through the viewfinder. Digital viewfinders have the advantage of allowing you to preview how the final image will look including any applied effects, however generally speaking they are considered inferior to an optical viewfinder.

Image Stabilisers

Some cameras have image stabilisers. These devices are designed to reduce the effect of hand shake on the stability of the camera thereby producing a sharper photograph. They are particularly important for large zoom cameras as zooming in will amplify the effect of any hand shake on the camera image.

There are two main types of image stabiliser: optical and digital. Optical image stabilisers work using a special lens which moves to counteract the effect of any hand shake. Optical stabilisers are considered superior as they do not artificially manipulate the image quality.

Digital image stabilisers work by a processor analysing the photo after it has been taken in order to reduce image blur. This can be achieved by the camera taking multiple photos and then combining the best parts of each photo together.

Autofocus

The camera's focus setting determines which part of the image is sharp.

Compact cameras will have an intelligent autofocus system which attempts to determine which part of the image should be in focus. These generally work well, but sometimes the camera can focus on wrong thing, for example when shooting through a window the camera may focus on the glass. Often budget compact cameras do not have a manual focus setting.

ISO, White Balance & Manual Exposure

Some cameras let you manually set the white balance of the photo too. White balance is important because different light sources (such as the sun or artifical light) produce different types of light which can affect the colours in the photo and if set incorrectly can make the photo look unnatural.

Continuous Shooting

Some cameras support rapid continuous shooting. This lets you hold down the trigger to take a rapid succession of photos, which is useful for capturing fast moving subjects. The speed at which the camera can take multiple photos is measures in frames per second and most cameras will have a limit on the number of photos that can be taken in quick succession. For best results you will also need a fast memory card which is capable of saving images very quickly.

Lens types

For system and DSLR cameras there are hundreds of different lens types available giving you a huge range of creative possibility. Lenses fall in to a number of distinct categories each of which has their own unique benefit.