If your meaning "what is the clearest image produced by lens?" It would be a microscope, if not I'm not sure what you mean... :/
The clearest image produced by a lens is obtained when the lens is properly focused and there is no aberration, distortion, or other optical imperfections. This results in a sharp and clear image with accurate representation of details and minimal blurriness. The clarity of the image is influenced by factors such as the quality of the lens, the aperture setting, and the distance between the lens and the object being photographed.
distance from the object
The image of a distant object is brought into focus in front of a person's retina, the defect is called nearsightedness. A virtual image produced by a lens is always located in front of the lens.
The principle of image formation in a compound microscope states that the second lens magnifies the image formed by the first lens. The use of two lenses enhances the magnification of the image.
A positive lens is also called a magnifying lens. It has convex surfaces and it has a measureable focal length where it produces an inverted image of a distant object. The power in dioptres is the reciprocal of the focal length in metres.
The objective lens
The image produced is a real image if the object is located at infinity and the lens is a convex lens. The produced image can actually be placed on a screen and photographed.
The image depends on the distance the object is from the lens.
The image produced by the lens is above the principle axis.
convex lens at 2c
image
distance from the object
It is specially set up to produced a magnified image of an object placed before its objective lens.
a virtual and erect image is always formed by a covering lence
I'm not sure, but I think the answer is upside down.
I'm not sure, but I think the answer is upside down.
A diverging lens can only produce a virtual image, because the light passing through a diverging lens never converges to a point. The virtual image produced by a diverging lens is always right-side-up and smaller than the original object. The image and the object viewed are always on the same side of the lens. Diverging lenses are used as viewfinders in cameras.
Compound microscopes have more than one lens. The first (objective) lens magnifies the object to produce an image. Subsequent lenses magnify an image produced by a previous lens. Leeuwenhoek's "microscope" had only one lens -- simple magnification only. ~The Undertaker~