This type of camera is another low quality, plastic toy model, but in medium format. It originated in Hong Kong in 1982 and is now made mainly in China. The camera is actually quite popular and has become a cult item with hobbyists and art photographers because of its unpredictability and all of its faults.
The plastic lens often produces numerous inadequacies such as fuzzy photos, soft focus and vignetting, which is the darkening of the photograph's corners. The bodies of Holga cameras also have shortcomings such as light leaks and the inability to hold the 120 size film against the film plane. The low tech cameras often produce multiple exposures because there is no shutter interlock. Fogging and scratched negatives are also common with a Holga camera.
The cameras often produce fascinating and abstract photos which differ from camera to camera and are mainly used for fun or art. They can be bought for about $20.