Digital camres have an infrared beam that measures the distance between the subject and the cameras lens, some newer age digital cameras now have ultra sonic beams which is based on sound.
Yes if Manual Focus is Off!
The Panasonic LX7 digital camera has all the usual features found on a digital camera like digital zoom and face recognition but this camera allows for full manual control of the aperture ring expanding the zoom and focus of the camera.
You can use a digital camera to focus the picture , regular cameras dont have it, it can record videos, edit, and an easier way to zoom into a scene.
It can as simple as a web camera or a digital camera. You'll need to focus on the sound because the digital camera has poor audio capabilities. So microphones should be added to the project.
To focus most digital cameras you need to push and hold the shutter button half way down. Then to take the picture you push it the full way.
The best way to focus the M417 camera is doing manual focus. Per the Amazon.com sales page for the camera, there has been noted that there is a defect with the auto focus. http://www.amazon.com/HP-Photosmart-M417-Digital-Optical/dp/B0007KTG1M
sets delays for shots tells the servos how to turn to auto focus
Digital Camera!
With the exception of some very expensive professional cameras all digital cameras have auto focus.
A Canon digital camera battery can be replaced by buying a Canon digital camera battery and putting the Canon digital camera battery in the Canon digital camera battery socket of the Canon digital camera.
The Sony Alpha NEX-F3 is a renowned digital camera notable for its video quality and auto focus system. It is a very good camera wich is aimed at most customers, with a cheap price tag of $600.
The key features of the Lytro Light Field Infinite Focus Digital Camera include the ability to refocus photos after they are taken, capturing light in multiple directions for a more immersive image, and a compact design. The benefits of this camera are the unique and creative photos it produces, the ability to adjust focus later, and its ease of use.