Folding Camera – A folding camera uses a bellows (that weird accordion thing) to accomplish the feat of allowing the user to carry around a rather large camera in a fairly compact manner. When closed, the folding camera is very thin and easy to throw in a bag. It then expands to add focal length when unfolded.
Twin-lens Reflex Camera (TLR) – A TLR, as its name implies, is a camera with two lenses on the front. The lenses share the same focal length and are often connected to focus simultaneously. The reason for the additional lens is simply for the viewfinder system, which brought about several benefits (over single-lens reflex cameras) such as a continuous image on the finder screen, and a less-noticeable shutter lag. For our purposes today, TLRs are important because they make particularly attractive photographic subjects!
Instant Camera – An instant camera is one that has a self-developing mechanism so that your images are ready to view right away. Polaroid was obviously the most popular manufacturer of instant cameras and released the first commercial instant camera in 1948. This model was called the Polaroid Land Camera and can be seen in several variations in the collection below.