ISO

Exposure is the single decision that most shapes how a photograph looks, and it is the one South African light makes hardest. A camera meter is a reasonable instrument that reaches reasonable conclusions, but under a clear summer sky at altitude it will hand you a sky without colour, a face in shadow, or beach sand rendered a dull grey. None of those are faults. They are the meter doing exactly what it was designed to do, on a scene it was not designed for. This article covers what exposure is, the three settings that determine it, and how exposure compensation lets you overrule the camera when its answer is not the one you wanted.

What is exposure, and how exposure works

Exposure is the total quantity of light the image sensor receives while the shutter is open. Too much and the image is pale and washed out, with white areas holding no detail. Too little and it is dark and muddy, with shadows that contain nothing to recover.

How exposure works in practice is a matter of three controls

Light in South Africa is unforgiving. At altitude on the Highveld, under a clear summer sky at midday, the gap between the brightest and darkest parts of a scene can be enormous, far wider than what a camera records in a single frame. The result is familiar: a sky that goes white, a subject that goes black, or both at once. Understanding dynamic range is what separates a photographer who works around those conditions from one who is defeated by them. This article explains what dynamic range is, how it is measured, and how to get the most out of yours.

What is dynamic range in a camera?

Dynamic range is the span of brightness a camera can record in one exposure, from the darkest tone that still holds detail through to the brightest tone that has not turned to pure white.

Your eyes are far better at this than any sensor. Human vision adapts continuously, the iris adjusting while the brain merges information gathered across those adjustments, so you can stand on a shaded stoep and read detail

Aperture shapes a photograph more decisively than any other setting. It governs how much light reaches the sensor, and it decides whether the background behind your subject dissolves into a soft wash of colour or stays sharp enough to count the leaves.

Different scenes call for different apertures. The settings that suit a portrait taken on a stoep in the last hour of afternoon light are nothing like the ones you would reach for at the top of Chapman’s Peak Drive with the whole Atlantic seaboard in front of you. This guide works through what aperture in photography actually is, how it interacts with shutter speed and ISO, and which f-stops to reach for across portraits, landscapes, night scenes, astrophotography and sport.

What Is Aperture in Photography?

The aperture is an adjustable opening inside the lens, formed by a ring of overlapping blades. Widening or narrowing that opening controls how much light passes through to the sensor. The measurement describing how far open it sits is

A practical guide to photographing stars, the Milky Way and night landscapes under South African skies

South Africa offers exceptional opportunities for astrophotography, from the dry, open skies of the Karoo to the dramatic ridgelines of the Drakensberg and the rugged formations of the Cederberg. Although photographing the night sky can seem technically demanding, strong results are possible once you understand the basic equipment, exposure settings and focusing techniques involved.

This guide explains how to plan an astrophotography shoot with an interchangeable-lens camera, choose a suitable lens and build compositions that feel distinctly South African. Use the recommended settings as a starting point, then adjust them to suit the moon phase, weather, level of light pollution and the scene in front of you.

Essential Equipment for Astrophotography in South Africa

Successful astrophotography begins before the shutter is pressed. A stable support system, a suitable lens and a few practical

Photography is all about capturing light, and one of the most important settings that controls brightness is ISO sensitivity. Whether you’re photographing wildlife on a Kruger National Park safari, capturing a sunset over Table Mountain, or shooting a night scene in Johannesburg, understanding ISO sensitivity will help you achieve the right exposure.

In South Africa, lighting conditions can vary dramatically—from bright midday sun to dim indoor gatherings or star-filled Karoo skies. Knowing how to adjust ISO sensitivity allows you to adapt quickly and take sharp, well-exposed photos in any situation.

ISO Sensitivity, Aperture, and Shutter Speed: How Exposure Works

To understand ISO sensitivity, it’s important to look at how it works with aperture and shutter speed. These three elements form the exposure triangle, which determines how bright or dark your image appears.

Aperture controls how much light enters the lens, while shutter speed determines how long the camera sensor is exposed to

Night photography offers a completely different perspective compared to daytime shooting. As the sun sets, cities come alive with glowing lights, and natural landscapes transform into dramatic, moody scenes. Whether you're photographing the vibrant V&A Waterfront in Cape Town, the skyline of Johannesburg, or the quiet beauty of the Karoo under the stars, night photography opens up endless creative opportunities.

However, shooting at night can be challenging. Low light, strong contrasts, and mixed lighting sources require a solid understanding of camera settings and the right equipment. In this guide, we’ll share practical night photography tips to help you capture sharp, well-exposed, and visually striking images across South Africa.

Essential Gear for Night Photography Tips and Techniques

Choosing Lenses for Night Photography Tips: Wide vs Telephoto

Wide-angle lenses are ideal for capturing expansive scenes such as Cape Town’s skyline or the dramatic landscapes of the Drakensberg. They