How to use high ISO camera?

You already know that ISO settings are used to adjust your camera's light sensitivity. The camera is more sensitive to light when using a high ISO, which often happens when taking photos in low-light conditions to maintain correct exposure. However, in at least the other three situations, high ISO should be considered, even if you're in good lighting or using on a tripod.

1. Freeze fast-moving movements

Use high ISO to freeze fast movements - 1/8000 ISO 1,000

Like shooting a fast-moving moth, freeze fast The only way to capture movement is to shoot with a very fast shutter speed. The photo above was taken with a high-speed lens to freeze the movement of the insect's wings. However, such a high shutter speed requires an ISO increase of up to 1000 to maintain exposure, even in bright midday sunlight.

Here are examples of why you must shoot at 1/8000. Even at 1/800th scale, insect wings are barely visible. To achieve motion capture, this means more light is needed in less time, and the only way to achieve this (without a faster lens) is to increase the ISO.

ISO 500 1/800 - Even at this speed, the wings are blurry

2. Photograph the night sky

Use high ISO to photograph stars

< p> There are many different techniques you can use when you want to photograph the stars, but one of the most important things to remember is to raise the ISO. Even if you're shooting with a tripod, the reason to do this is because the earth is moving and the stars in the sky are moving too, and you don't want to capture that movement (unless you're photographing shooting stars).

Using an ISO range of 800 to 1,000 and a fast wide-angle lens will allow you to capture enough stars in the sky.

3. Handheld Telephoto

Use a high ISO when shooting handheld with a telephoto lens

If you use a long lens to shoot handheld, you must remember the shutter speed rules : 1

/focal length (equivalent to 35mm). This rule means that if you use a 300mm lens on a digital camera with a 1.5x crop sensor, the fastest or slowest shutter speed you can use is 1/450 (1/300 for a full-frame camera).

The bald eagle was photographed at an equivalent focal length of 450mm, a shutter speed of 1/500 second and ISO 1,000. Slower shutter speeds can cause camera shake.