Field of View – angle of acceptance, telescope ... - definition for field of view
Magnifiers are used to provide fixed magnification to a range of applications such as inspection, quality assurance, or repairing small objects. Magnifiers comprise a selection of devices such as comparators, linen testers, or handheld magnifiers designed to show an enlarged image under inspection. Magnifiers ease the handling or visualization of small objects or materials. A variety of contact reticles are also available to add additional measurement capacity to Magnifiers.