The cameras had a very high quality1:2.8 28 mm lens. Exposure control could be program automatic or aperture priority semi-automatic. They had a built-in flash and date imprinting versions were also available.
^Fisher, Jim (20 March 2013). "10 Cool Classic Film Cameras". PC Magazine. Retrieved 30 January 2014. Ricoh's GR1 series has its devotees. ... its lens has received nothing but praise in terms of its optical qualities