The NIKKOREX 35 was introduced in 1960 amidst major changes in the photographic industry.
That was when a boom in twin-lens reflex cameras (TLR) and spring cameras began to fade, while 35mm(135) format cameras secured their position in the mainstream camrera market.
Among high-end 35mm(135) format cameras that have interchangeable lens system, there was a shift in popularity toward single lens reflex(SLR) cameras and away from rangefinder cameras.
Several improvements in SLR technology, such as penta-prism eye-level finder and quick-return mirror caused this change and made SLR cameras more and more easy to use.
Thus the Asahi Pentax AP, introduced in 1957, the Minolta SR-2, introduced in 1958, and other groundbreaking 35mm(135) format SLR cameras grew in popularity.
On the other hand, a trend was going on toward lens-shutter-type 35mm(135) format cameras with built-in exposure meters, meter-coupling devices, and electric eye (EE) automatic exposure mechanisms.
Also around this time, the original lens shutter for programmed exposure control was developed.
These innovantions made such cameras very easy to use, which had required great expertise before.
It was natural, then, for Nippon Kogaku K. K. (now Nikon Corporation), renowned in the industry for high-end focal-plane shutter rangefinder cameras, who had just introduced the top-of-the-line Nikon F SLR in 1959, to enter the market for lower class 35mm(135) cameras in order to expand its business.