nikons d4s
Nikons are all around good cameras.
. Professionals mainly use the SLR type of digital camera and sometimes use "digital backs". As for makes, my personal opinion is to go with either Canon or Nikon cameras. .
Cannon is sighted as being one of the best manufacturers of camera's and camera related items such as lenses. Nikon also makes a high quality lens system.
You can go onto Nikons website and it has directions to send your product to get it repaired. If there is a camera place nearby, they may know what is wrong with your camera.
No, this is a point & shoot camera and there is no lens mount. The lens is fixed on the camera and cannot be removed.
You can't. The lens on a Canon SD950 is integral to the camera body. Trying to remove it will ruin both the camera and the lens.
Canon makes the best 50mm camera lens, known as the EF 50mm f/1.8mk2, 50mm f/1.4 USM and 50mm f/1.2L lenses
The focusing lens of the camera
A camera lens.
bioconvex lens
It depends on the "system." On a digital camera, you'd have the camera body, the lens if it's a detachable-lens camera, a tripod maybe, some memory cards, a computer and a printer. The people who invented that term were Hasselblad, who makes big rollfilm cameras, and a Hasselblad (or any medium format) system consists of a body, back, viewfinder, focusing screen, lens and accessories.