Box cameras are just that, small boxes of cardboard, wood, or metal, generally with a simple shutter mechanism and simple lens. Sighting is done by reflective viewfinders or in some models popup viewfinders. Often there is just one fixed aperture and one fixed shutter speed, though some models like the eclectic Zeiss Ikon Box Tengor are more sophisticated with multiple shutter and aperture settings and even flash sync.
Twin lens reflex or TLR cameras have separate lenses for viewing the scene (viewing lens) and exposing the film (taking lens), usually of differing quality but generally designed to give you as close a sense of the final image as possible. The image from the viewing lens reflects by mirror onto a ground glass with the image reversed left-right. The taking lens is incorporated into the leaf shutter mechanism much like on a bellows camera. Film formats are generally 620 (US), 120 (European) or 127, though the famed (and rare) Zeiss Ikon Contaflex TLR is 35mm. Some have available kits to accept 35mm, such as some Rolleiflex, Ricohflex, and Flexaret models. Quality in TLRs also ranges from plastic 'toy' cameras such as the Kodak brownie Reflex and Argus Argoflex 75 to the world-class and still-popular Rolleiflex.
If you have information to add or would like to ask questions about these cameras, their use or care, or even just want to say 'hey', feel free to email me, I always enjoy hearing from you!
Related Links
- Matt's Classic Cameras index
- Pacific Rim Camera Photo Pages has encyclopedic info on various classics
- The Living Images Virtual Camera Museum has nice pics and descriptions
- You can get lost in the Medium Format Cameras Library Page for days - it's a treasure trove
- Guide to Classic Cameras
- Classsic Camera Profiles
- Classic Camera Manuals Page is a lifesaver
- Another great page of classic camera manuals from F and S Mariott
- A primer to mentally calculating exposure (you'll need it with these)



















