It is a flexible unit, with manual and two automatic settings. Takes 4 x AA batteries. Worked well with the Canon AE-1 I had until recently.
Canon Speedlite 188A Flash Fits Canon - A1 AE-1 AL-1 AT-1 AV-1 working well
Canon Speedlite 277T Flash Unit For A1 AE1 Camera Shoe Mount Flash
Canon Speedlite 188A Flash + Soft Case
Canon Speedlite 270EX Flash for Canon Digital SLR Cameras
Nice Canon Speedlite 200e Flash for Canon EOS 35MM Film SLR cameras
[MINT] Canon Speedlite 380EX Flash for Canon From JAPAN #240612h
![[MINT] Canon Speedlite 380EX Flash for Canon From JAPAN #240612h](/images/thumb.php?i=33493376&s=195)