Concepts in Photography

ISO sensitivity

The exposure of an image is determined by the sensitivity of the camera. This sensitivity is based on international film standards, known as ISO standards. On digital cameras, this sensitivity rating is used

to represent the sensitivity of the digital mechanism that captures the image.

ISO sensitivity doubles as the number doubles. For example, an

ISO 200 setting is capable of capturing images at twice the speed of an ISO 100 setting. However, higher ISO settings can result in “noise”— small specks, spots, and other phenomena in a photo that give the shot a noisy or dirty appearance. As a general rule, it is best to use a low ISO setting to prevent noise in your photos, unless you are shooting in darkened environments or at night.

Changes in the quality and brightness according to ISO sensitivity

Because a low ISO sensitivity means the camera will be less sensitive to light, you need more light to have an optimal exposure. When using a low ISO sensitivity, open the aperture more or reduce the shutter speed to allow more light to enter the camera. For example, on a sunny day when light is abundant, a low ISO sensitivity does not require a low shutter speed. However, in a dark place or at night, a low ISO sensitivity and a fast shutter speed will result in a blurry photo.

A photo captured with a tripod and

A blurred photo with a low ISO sensitivity

high sensitivity

 

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Samsung NX1000 user manual ISO sensitivity

NX1000 specifications

The Samsung NX1000 is a compact mirrorless camera that was introduced to cater to photography enthusiasts who desire high-quality images without the bulk of a traditional DSLR. This camera, which debuted in 2012, showcases Samsung's commitment to bringing advanced technology into a user-friendly design.

One of the standout features of the NX1000 is its 20.3-megapixel APS-C CMOS sensor. This large sensor allows for exceptional image quality, capturing detail and clarity in various lighting conditions. The sensor size is comparable to those found in larger DSLRs, making it capable of producing stunning images with shallow depth of field and impressive low-light performance.

The NX1000 also boasts a fast and accurate autofocus system, which includes a contrast-detection autofocus mode. This is complemented by continuous shooting capabilities, allowing users to capture up to 8 frames per second. This feature is particularly useful for action shots and ensuring that perfect moment is never missed.

Another impressive characteristic of the NX1000 is its ISO range, which ranges from 100 to 25,600. This wide range enables users to shoot in various lighting conditions, reducing noise and maintaining image quality even in dim environments. Additionally, the camera's built-in flash along with a hot shoe for external flashes makes it versatile for different shooting scenarios.

The NX1000 features a 3-inch AMOLED screen, which offers vivid colors and excellent viewing angles. This display makes it easier for photographers to frame their shots and review images in bright lighting conditions. The camera’s compact size and lightweight design make it highly portable, allowing photographers to take it on trips or casual outings without feeling weighed down.

For connectivity, the NX1000 includes built-in Wi-Fi, which allows for easy sharing of images to social media or cloud storage directly from the camera. This feature reflects the growing trend of photography in the digital age, where immediacy and connectivity hold significant value.

Furthermore, Samsung has designed the NX1000 to be user-friendly, featuring a range of automatic shooting modes alongside manual settings for those who wish to take full control over their photography. This makes the camera accessible for beginners while still appealing to more advanced users.

In summary, the Samsung NX1000 is a versatile mirrorless camera that combines advanced technology with a lightweight design. Its outstanding sensor, fast autofocus, versatile ISO range, and connectivity options make it a compelling choice for both budding photographers and seasoned professionals looking for a portable option.