DSLR & MIRRORLESS CAMERAS PLUS: Our best-buy accessories

Use our real-world testing scores from across the market to purchase your next camera with confidence

Sensor sizes at a glance

Three formats dominate DSLR and mirrorless cameras…

Full-frame (36 x 24mm)

These imaging sensors have similar proportions to a frame of 35mm film.

APS-C (≈ 25.1 x 16.7mm)

Based on the Advanced Photo System film format from the 1990s.

Micro Four Thirds (17.3 x 13mm)

The 4:3 aspect ratio allows smaller and lighter lenses to be used.

Wise buys Landscape lenses

Good, better and best… three optics for shooting scenics

Sigma 14-24mm f/2.8 DG HSM

Price: £1,269/$1,299

Verdict: Well-made and optically excellent, this lens for Canon and Nikon DSLRs is a real bargain. Sharpness is impressively consistent.

Canon RF 15-35mm f/2.8L IS USM

Price: £2,389/$2,399

Verdict: Its 35mm reach offers extra flexibility for shooting landscapes, and it features an optical image stabiliser worth up to five stops.

Nikkor Z 14-24mm f/2.8 S

Price: £2,385/$2,397

Verdict: Comes with all the bells and whistles: phenomenal sharpness, a customisable control ring, an assignable function button and a multi-function display.

What to look for in a… DSLR

Lens release To remove the lens, press the button and twist the lens anti-clockwise.

Use the protective body cap, so you don’t leave the sensor exposed to dust.

Shutter release To shoot, press the shutter release button. To focus and meter the scene, half press the shutter release.

Lens A DSLR is far more versatile than a camera with a fixed lens because you can change lenses and alter the angle of view.

Sensor This is where your images are recorded before being processed and stored on your memory card.

Mode dial The mode dial is where you access the camera’s shooting modes. For first-time users, the fully Auto mode selects all the camera settings for you.

Hotshoe To attach a flashgun, slot it into place and tighten the catch on the device.

Command dial The command dial is used to alter camera settings and adjust features.