Convertible lens
Compound lens made in two sections, the elements of which are arranged so that when one part is unscrewed it provides a new lens with approximately twice the original focal length.
Search SWPP and BPPA ...
Convertible Lens
From Nikonians Wiki - FAQs, Photo Glossary, Good Photo Locations, Help
Jump to: navigation, search ...
Convertible lens
Edit Read more: Glossary, Lens
Edited by U. kulick
View full history ...
Convertible Lenses
Cooke Series XVa Triple Convertible Lens (Photo courtesy of Cooke Optics Ltd.) ...
In convertible lenses, portions or elements of the lens can be used by themselves. In either method, the focal length of the lens can be changed. When one of these two conditions cannot be met, the focal length is fixed and constant.
6 Convertible lens with a huge dent in the lens barrel and ordinary Fuji Velvia film. This camera is very popular with landscape photographers due to its low cost, light weight and flexibility. The 150mm lens is normal for a 4 x 5" camera.
These are popular with field photographers who can save weight by carrying one convertible lens rather than two or three lenses of different focal lengths.
 See also: Lens, Camera, Mount, Back, Focal length
  
|
RSS
