ABOUT LONG EXPOSURE PHOTOGRAPHY
Long exposure photography to me is extremely enjoyable, it requires opening the shutter for an extended period of time, typically more than half a second long, to perhaps minutes or even longer to capture more light into the sensor. Slow shutter speed is one important aspect of photography, typically setting up the camera on a tripod (or non shaky/moving steady surface). Having more light exposing the image sensor means that we can afford to use lower ISO setting on the camera, ultimately producing clean, noise free, and sharp images. Therefore, to shoot beautiful images of city landscapes and building lights at night, long exposure is the best way to go. Furthermore, allowing the camera to capture the light for seconds also means that it will record all motion and light trails, which can create very exciting effect in the end result. Light painting, fireworks, car light trails, all can be produced from long exposure photography.
However, long exposure photography is difficult to be performed on most smartphone cameras, mostly due to the lacking of full manual control of the imaging parameters. In order for long exposure to work, we need to have access to control of shutter speed and adjustments of ISO sensitivity. Huawei P9 has both these controls, allowing shutter speed adjustments from 1/4000th of a second to the slowest exposure of 30 seconds, which is very generous and flexible enough to use for a wide variety of long exposure situations. ISO can be set from 50 to 3200, and believe me, in long exposure, the lower the ISO, the better the image quality, so ISO 50 was a great starting ISO. In case those of you are not aware, the aperture is fixed at F2.2 (there is no moving aperture diaphragm to stop down further), and there is no mechanical shutter mechanism, thus electronic shutter is used.
HUAWEI P9 LONG EXPOSURE SETTINGS
My set up for this round of shooting session, typically:
Huawei P9 on PRO mode (full manual control)
Shutter speed varying from 1/2 second to 5 seconds, adjusted as necessary
ISO fixed at 50, for cleanest, best looking image.
Self-timer set at 2 seconds to prevent the phone being shaken from the tap of the screen to start shooting.
Camera was mounted on tripod, via a cheapo clamp bought from Daiso (RM5.30)
Huawei P9 mounted on a tripod. Waiting for the light to go down, overlooking KL City Skyline