Canon A series explained

Canon’s A series^[1] ^[2] is Canon's amateur series^[3] of manual focus 35 mm single lens reflex cameras. The first camera, the AE-1, was introduced in April 1976^[4] while the final camera, the AL-1, was released in March 1982.^[5] All have a Canon FD lens mount compatible with Canon's extensive range of manual-focus lenses.

Canon AE-1 (April 1976)
Canon AT-1 (December 1976)^[6]
Canon A-1 (April 1978)^[7]
Canon AV-1 (May 1979)^[8]
Canon AE-1 Program (April 1981)^[9]
Canon AL-1 (March 1982)

References

http://global.canon/en/c-museum/series_search.html?t=camera&s=film&s2=a Canon Camera Museum – Film Cameras – A series
http://www.canonclassics.com/canon-a-cameras/ Canon Classics – Canon A Series cameras
https://books.google.com/books?id=qiCBviGKHuEC&pg=PA10 Popular Photography – May 1982 – Page 8–10
http://global.canon/en/c-museum/product/film93.html Canon Camera Museum – Canon AE-1
http://global.canon/en/c-museum/product/film106.html Canon Camera Museum – Canon AL-1
http://global.canon/en/c-museum/product/film96.html Canon Camera Museum – Canon AT-1
http://global.canon/en/c-museum/product/film100.html Canon Camera Museum – Canon A-1
http://global.canon/en/c-museum/product/film101.html Canon Camera Museum – Canon AV-1
http://global.canon/en/c-museum/product/film103.html Canon Camera Museum – Canon AE-1 Program