![Vivitar 220/SL](https://farm6.staticflickr.com/5092/5465515793_bc5e59c243_z.jpg)
This appears to be a cheaper version of the Vivitar 400/SL I also own. The only difference I can make out is the lack of a depth-of-field preview button on this one. I believe this camera was made in 1976 by Cosina. It uses the common M42 screw mount.
![Vivitar 220/SL](https://farm6.staticflickr.com/5016/5465515043_601cb84cab_z.jpg)
Side View