Archived posting to the Leica Users Group, 2009/07/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Goeff writes: How do you get doublet in there??? Most of the strength of the eye as a lens is due to the curved shape of the cornea. The eye's lens does, indeed, adjust focus, at least until the age of 40 or so. By that time it loses flexibility and you have to wear glasses for reading. Actually the optical system of the eye is a bit more complex than I described. It has many of the structural features of the Box Brownie - or rather I should say that the Brownie has many of features of the eye. The diaphragm is behind the lens and the retina is curved just like the film plane of the Brownie. The only camera I know that consciously tried to emulate the optical characteristics of the eye is the original Riga Minox, f 3.5 15mm FL lens and curved film plane. In this computer centric age, Leica's approach to designing the best possible optics is so 19th century. Nature abandoned this method several million years ago. ;-) Larry Z ************** What's for dinner tonight? Find quick and easy dinner ideas for any occasion. (http://food.aol.com/dinner-tonight?ncid=emlcntusfood00000008)