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Understanding Digital ISO
June 15, 2017 By  Allie Roqueta With  0 Comment
In  Samsung Camera

While ISO has been typically known as being synonymous with “film speed,” or a film’s degree of sensitivity to light, the same principle can also be applied to digital cameras. In the digital world, ISO refers not to the sensitivity of film, but rather the sensitivity of the camera’s mechanical sensors.

Typical ISO ratings are 100, 200, 400, 800, 1600, and 3200. You can see that each rating is twice as fast as the one before it. The lower the ISO, the less sensitive it is to light, therefore you will need a lot more light for your photo to process effectively. On the other side of the spectrum, faster ISO speeds require less light for exposure.

Clockwise from left
A Mosque Horizon. NX300 | 1/500 | f/7.1 | ISO 100 | 50mm
Outside of the Hagia Sophia. NX300 | 1/250 | f/6.3 | ISO 100 | 18mm
Blue Mosque. NX300 | 1/320 | f/8 | ISO 100 | 55mm

Slow ISO speeds [100-200] work well in the outdoors on bright sunny days, or indoors where there are bright light sources available.

NX300 | 1/80 | f/3.5 | ISO 100 | 18mm Shisha and Tea

NX300 | 1/80 | f/3.5 | ISO 100 | 18mm Turkish Cafe
NX300 | 1/80 | f/3.5 | ISO 200 | 18mm Istanbul Street Art

Medium ISO speeds [400] are generally applied to more “neutral” lighting, covering most indoor settings and somewhat overcast days outdoors.

NX300 | 1/60 | f/4.5 | ISO 400 | 33mm At the Spice Market

Fast ISO speeds [800 and above] are utilized for indoor scenes with very dim lighting, or at night.

NX300 | 1/80 | f/4 | ISO 1600 | 50mm Inside the Hagia Sophia

NX300 | 1/8 | f/3.5 | ISO 3200 | 18mm The Sunken Basilica

One thing to take into consideration is that the quality of your photo is also affected by ISO. Since a slower ISO takes time to process, it is able to capture finer details within a photo, while a faster ISO will typically will render the image slightly grainier.


On digital cameras like the Samsung SMART CAMERA, you can manually adjust your ISO by setting your camera to Program [P] mode and clicking the Function [Fn] button. From here, you are able to adjust your ISO speed accordingly.

NX300 | 1/40 | f/3.5 | ISO 800 | 18mm Hagia Sophia

NX300 | 1/80 | f/3.5 | ISO 100 | 18mm Turkish Tiles

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