I want to buy a second-hand camera for several hundred dollars. Can you recommend it?

Used Sony: t 1 DSC-s600p 10 Canon: A80 S60 IXUS 500 knows so much for the time being. Choose the right one by yourself.

A camera is a kind of equipment that uses the principle of optical imaging to form an image and records the image with a negative. This is an optical instrument used for photography. In modern social life, there are many devices that can record images, all of which have the characteristics of cameras, such as medical imaging equipment and astronomical observation equipment.

After the light reflected by the shot scene is focused by the camera lens and the shutter that controls the exposure, the shot scene forms a latent image on the photosensitive material in the camera box, and forms a permanent image after being developed and fixed. This technology is called photography, which is divided into general photography and professional photography. 2065438+In September 2008, the Harmonized System Committee of the World Customs Organization classified UAVs as "flying cameras".

The lens focuses the scene on the reflection of the film. In order to make the images of objects in different positions clear, besides the lens itself, the aberration should be corrected, and the object distance and image distance should also maintain the yoke relationship. For this reason, the lens should be able to move back and forth to focus, so the camera should generally have a focusing mechanism. Different brands of SLR cameras usually use different bayonets. The following table lists some common lens bayonets.