This site is about the history of the PentaPrism SLR camera.It is also a site presenting my collection of these cameras. When it comes to Sigma I have not one in my collection. They seem to have gone under my radar, mostly because Sigma was so much
a lens producer, but also because their cameras from the 70's and 80's were produced by others. Cosina would be the first guess, but the Mark 1 is not on the Cosina list. Some say that Ricoh produced them, but Ricoh PP SLR cameras were mostly produced by Cosina.
And amomg them both Singlex TLS and XR-7, the two Sigma twins. (See Coslina list Cosina: 1969-2004)
Anyway, these are the main Sigma-branded cameras from the different eras.
1961: Company founded as a lens producer.
1976: First PP SLR camera introduced: Sigma Mark 1 (M42 mount) (A Ricoh Singlex TLS twin.)
1983: First K-mount PP SLR introduced: Sigma SA-1 (A Ricoh XR-7 twin.)
1992: First SA-mount camera:
2001: SA-7, a compact SLR AND: SA-9, high-end SLR
2002: First digital SLR camera: Sigma SD-9
2012: Last DSLR introduced:
2016?: DSLR camera production discontinued.