Parallax corrected bright frame viewfinder

<h3> Parallax Corrected Bright Frame Viewfinder </h3>

<p> The parallax corrected bright frame viewfinder of Minox 8x11 camera since 1948 was

a revolutionary contribution by Walter Zapp.

<p> Leica screwmout rangefinders before fifties had squinty viewfinder with no parallax

correction.

<p>The first Leica rangefinder camera with bright frame parallax corrected viewfinder

was the Leica M3 of 1954 ( so was IIIg of 1957)

<p> According to Minox camera authority Hubert Heckmann, Walter Zapp had completed

his revolutionary bright frame parallax corrected viewfinder in 1942, and incorporated

in post war Minox.

<p> If my understanding is correct, that means the Minox II of 1948 had already

parallax correction. That means Minox parallax corrected viewfinder predated the first

parallax corrected Leica M3 by at least six years.

<P> To day, parallax correction is still exclusive to Leica rangefinders and metal

Minox 8x11 cameras. Many deluxe compact 35mm camera, such as Contax T2 has only a

parallax correction marking.