What is the use of super high ISO?

What is the use of ultra-high ISO?

In recent years, the ISO of new cameras has become higher and higher. For example, the Pentax KP released a few days ago can be pushed to ISO 819200, but high ISO in low light The noise in the photos taken will be very serious, and some friends will have questions: apart from showing the technology of the manufacturer, what is the role of using ultra-high ISO? New Zealand photographer Charles Brooks shared his own experience.

The photographer said that he often shoots at night, but it is very difficult to focus when taking photos at night, so repeated experiments are needed. He used a shooting in Muriwai as an example.

Under the circumstances, if you want to achieve the desired effect, you need to use f/3.5 and a shutter speed of 60 seconds, but you still have to wait for the image to be generated after shooting (the camera has the noise reduction function turned on). If? Try The time spent on camera photography is the same as the time spent on formal shooting, which is definitely thankless. Therefore, before taking formal photos, he will first use high ISO to compose the picture and check the focus.

The first photo was taken using Panasonic GX8 / ISO 25600 / 5?

In fact, five seconds is not a short period of time, but the camera on the photographer’s hand can only shoot ISO 25600.

When the composition and focus are correct, switch to ISO 1800 and shoot for 60 seconds:

In addition, a Sony user pointed out that when he used Sony A6000, even if the original shooting The setting is low ISO, but the image will be previewed at the highest ISO on the LCD screen, which saves time in taking "test" photos. In addition to answering the question of some people who think that "high ISO is useless", it actually just shared one of the usage examples. There are actually many works shot with high ISO.