Eye
In a camera with a removable lens system, the camera body is all of the camera except the lens mechanism. Many more-sophisticated cameras employ a system of removable/ exchangeable lenses. The "camera body" and the "lens" are often sold separately. What is called simply the "lens," though, is really a lens tube with multiple lenses and multiple adjustment mechanisms. It will have a standard connection point that mates to the lens mount on the camera body.
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.
The body tube of a microscope supports the objective lens system and the eyepiece. This tube holds the optics in place and allows for adjustments to focus on the specimen.
After passing through the specimen, the light enters the objective lens system in a microscope. This lens system is responsible for magnifying the image of the specimen.
The body tube of a compound optical microscope contains the ocular lens, also called the eyepiece lends, and the objective lens system which consists of one or more lenses.
To mount a Canon lens on a Nikon body, you will need an adapter ring that is compatible with both the Canon lens mount and the Nikon body mount. This adapter ring allows you to physically connect the Canon lens to the Nikon body, enabling you to use the Canon lens on the Nikon camera.
It technically does, but with the liquids you put on it, and the material its made of and taking them out when you go to bed, the body slowly accepts it.
Your eye.
The eyepiece lens, also known as the ocular lens, is located on the superior end of the body tube on a microscope. This lens is where you look through to observe the specimen on the slide.
No, an EF lens will not fit an EF-S camera body.
The Body Tube
convex lens