from wikipedia: " The Holga is an inexpensive, medium format 120 film toy camera, made in China, appreciated for its low-fidelity aesthetic.
The Holga's cheap construction and simple meniscus lens often yields pictures that display vignetting, blur, light leaks, and other distortions. The camera's quality problems have become a virtue among some photographers, with Holga photos winning awards and competitions in art and news photography"
We will be using Holgas for our next assignment, it uses 120 (medium format) film. The parameters of this assignment are to shoot your 12 images (that is all that is on the roll) and include a "frame within a frame" in each image. This means you should use objects to border or frame you subject to direct the viewer to your subject/focal point.