How to take a photo by pressing the shutter with a selfie stick?

Cell phone selfie stick takes pictures by pressing the shutter. There are buttons on the handle. Insert the wire into the earphone hole and press the button on the handle when taking pictures.

When using the selfie stick, "hand shaking" may occur. The longer the stick is, the more it shakes, and the anti-shake of the mobile phone is not good enough. In fact, the Federal Communications Commission (FCC) of the United States has FCC standards for the import and use of RF equipment, including computers, fax machines, electronic equipment, radio receiving and transmitting equipment, radio remote control toys, telephones, personal computers and other products that may endanger personal safety. Because of the use of Bluetooth technology, selfie sticks sold in the United States must meet FCC technical standards. ?

Around the world, the "selfie artifact" has many fans, including American President barack obama and South Korean President park geun-hye. In the past two years, selfie sticks have swept the world and even evolved into a "selfie culture". In 20 13, Oxford University Press named "selfie" as the word of the year.

Some selfie sticks can adjust the focal length of mobile phones, but most of them can't. The operation of adjusting the focal length may be limited to some brands.

As for the common B shutter function of SLR cameras, although you can freely decide the exposure time and have higher shooting flexibility, most portable consumer digital cameras can't support it at present, and can provide the default values of slower speed such as 2 seconds, 8 seconds and 16 seconds at most.

After we decide the shutter speed ourselves, the camera metering system will automatically select the appropriate aperture F value (which can be a stepless F value) according to the light conditions at that time. Digital cameras equipped with exposure mode dial usually engrave the letter "S" on the dial, which stands for the required shutter mode. Shutter priority mode is suitable for photography that needs to control the shutter. High-speed shutter can condense action, and slow shutter can turn moving vehicles into light beams.