Rangefinder Camera Focus: In 1932 Zeiss Ikon brought out a similar camera, the Contax; it featured a built-in rangefinder Camera focus coupled with the focusing mechanism so that by simply rotating the lens until a double image of the subject became single, the photographer was assured that the image would be in focus. Soon lenses with apertures as large as //1.5 were offered for the Leica, the Contax, and a host of other 35mm rangefinder Camera focus cameras. A further refinement was the provision of single-lens reflex viewing on a ground glass observed at eye level through a prism, as in the highly popular Nikon F, introduced shortly after World War II by Zeiss Ikon of Dresden as the Contax S.
She blundered her way through technique, resorting to any means to get desired effects. The blurred, out-of-focus images that many critics deplored were deliberate. She wrote to her friend Sir John Herschel that she hoped to elevate her art beyond
mere conventional topographic Photography-map making & skeleton rendering of feature & form without that roundness & fulness of force & feature that modelling of flesh & limb which the focus I use only can give tho' called & condemned as "out of focus'' What is focus-& who has a right to say what focus is the legitimate focus-My aspirations are to ennoble Photography and to secure for it the character and uses of High Art by combining the real & ideal & sacrificing nothing of Truth by all possible devotion to Poetry & Beauty-,19.
The Camera was loadf with twelve plates that were changed by pulling out at pushing in a brass rod. A sliding, spring-operated shu ter worked at a speed of 1/60 of a second. The lens w; set at fixed focus; Carpentier stated that photographe were incapable of focusing accurately enough to perm sharp enlargements to be made. A fixed-focus enlarg was sold as an accessory: he boasted that with it "tl original negatives are easily increased to Vi-plate si [61/2 x 434 in.]-a matter of considerable moment operators making views for practical purposes."
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