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Orthoscopic   Listen
adjective
Orthoscopic  adj.  (Opt.) Giving an image in correct or normal proportions; giving a flat field of view; as, an orthoscopic eyepiece.





Collaborative International Dictionary of English 0.48


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"Orthoscopic" Quotes from Famous Books



... different magnifications; for instance, the inner parts may differ in greater magnification than the outer ("barrel-shaped distortion''), or conversely ("cushion-shaped distortion'') (see fig. 7). Systems free of this aberration are called "orthoscopic'' (orthos , right, skopein to look). This aberration is quite distinct from that of the sharpness of reproduction; in unsharp, reproduction, the question of distortion arises if only parts of the object can ...
— Project Gutenberg Encyclopedia


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