Is there a big difference between a SLR camera and an Apple phone? Mainly pixels?

There is a big difference. It's not the difference between pixels.

The quality of a photo is not as good as the more pixels. What affects the picture quality is the size of a single pixel. More pixels will bring more noise while improving the resolution. If the built-in algorithm is general, it will also bring a serious sense of smear, and the picture taken in dark light will have poor image quality after amplification. Professional cameras, on the other hand, have larger photosensitive elements, which have more advantages in single pixel area, and can output photos with larger frames while maintaining high image quality.

Extended data:

1. In order to make up for the shortage of mobile phone photography, some manufacturers have made great efforts in accessories. Some wide-angle, macro and fisheye external mirrors are cheap and fun at ordinary times, and some have even been integrated into the back of the mobile phone case. Even so, in terms of broad focus market segments, mobile phones still have a long way to go.

2. Now the optical anti-shake function of the mobile phone has actually been applied to the camera lens. Moreover, the aperture of the camera lens is larger, and the optical anti-shake module has more moving space and better effect. Moreover, some digital cameras are anti-shake, such as the five-axis anti-shake applied on Olympus and the Sony mirrorless camera.

3, professional camera function can not only use the preset scene to select the white balance, but also use the "grey card" to customize the white balance. Sometimes, in order to obtain different shooting effects, the color temperature can also be freely selected. The accuracy of white balance is closely related to the color experience of photos, and the automatic white balance of mobile phones often drifts, resulting in inaccurate color performance.

We usually take photos with our mobile phones. The most lighting equipment is its own LED flash. Because of the small area and weak light, the photos taken are not effective, so they are generally used as an emergency. But the camera is different. All kinds of off-camera flashlights, large studio lights, ever-burning lamps and other lighting equipment make indoor and outdoor shooting easy.

References:

How far is it from professional SLR? Analysis of Mobile Phone's Photo-taking Function-Zhongguancun Online