3 Bonus tips from the PP team...
Tim, Dan and Louise recommend their favourite hidden camera functions for you to try out.
Every lens on the market is optically imperfect in one way or another, which can have a significant impact on your images. Unfortunately, you can’t do much about a lack of sharpness, but you can accurately correct a host of other issues, and you can do it in-camera. We check out three of the most common problems – vignetting, lens distortion and chromatic aberration – to the right. Your camera corrects these using lens profiles, which hold info on exactly how each lens model performs at every focal length and aperture setting, and compensates for this with impressive precision. Lens corrections are only applied to JPEGs – RAWs need correcting in editing software.
WITH LENS CORRECTION
The corners of the frame appear darker than the centre, a defect especially common at wider aperture settings. LENS DISTORTION VIGNETTING Straight lines near the edges of the frame appear to bow either inwards or outwards, depending on the lens.
TIP 1 TIM BERRY FIX DISTORTIONS WITH LENS CORRECTION
CHROMATIC ABERRATION Areas of contrast are often fringed with purple and green lines. This tends to be more common on cheaper glass.