-64X digital zoom help you get clear images even in long distance shooting. You can easily take pictures even in a dark environment. -Shoot 4K footage that contains about four times more detail than Full HD (3840 x 2160 pixels vs. 1920 x 1080) footage, and capture more of the incredible qualities that bring images to vibrant life. -The image you see on the camera screen is blurry, because the resolution of the camera screen is relatively low, please put the captured photos or videos on a 4k computer or 4K TV by 2.0 cable for playback. -Use 1/2.3 inch CMOS sensor -More flexible image capture, wider dynamic range, high resolution. -Most of camcorder has 1/3 inch sensor, but AZ50 has 1/2.3 inch sensor which will help you shoot good quality picture even in low light.