Lens Focal Length: Normal, Short, Long, Special Lenses

  Lens focal length is the most important characteristic of a lens. One of the prime advantages of a single·lens reflex camera or a view camera is the interchangeability of its lenses; the reason photographers own more than one lens is so that they can change lens focal length. … PDF: Lens Focal Length, The Basic Difference Between Lenses   Normal Focal Length The Most Like Human Vision A lens of normal focal length, as you might expect from the name,  produces an image on film that seems normal when compared with human vision. The image includes about the same angle of view as the human eye Read more

The View Camera

  Cameras and Accessories View cameras come in a variety of sizes, ranging in inches  from 2 1/4″ x 3 1/4″ up to 11 x 14 formats. There are larger models, but those are usually used only for special-purpose photography because of  the limits imposed  by  their massive size and weight. The two most popular sizes are 4×5  and 8 x 10. All monorail cameras are modular  in  design. These can be specifically configured in terms of bellows, monorail length, and type of back and front components to serve  a wide variety of photographic needs.  … PDF: Cameras and Accessories   Definitions The view camera is unique because its lens and back are Read more