Editing Single-lens reflex camera (section)

== Further developments ==
[[File:Reflex camera (description).svg|thumb|upright=1.36|right|Parts]]
Since the technology became widespread in the 1970s, SLRs have become the main photographic instrument used by dedicated amateur photographers and professionals. Some photographers of static subjects (such as architecture, landscape, and some commercial subjects), however, prefer [[view camera]]s because of the capability to control perspective.<ref>{{cite web
|url=http://www.naturephotographers.net/articles0703/gt0703-1.html
|title = Introduction to Large Format
|access-date = 2007-08-28
|last = Tal
|first = Guy
|work = Nature Photographers Online Magazine
}}</ref> With a triple-extension bellows 4" × 5" camera such as the Linhof SuperTechnika V, the photographer can correct certain distortions such as "keystoning", where the image 'lines' converge (i.e., photographing a building by pointing a typical camera upward to include the top of the building). [[Perspective correction lens]]es are available in the 35&nbsp;mm and medium formats to correct this distortion with film cameras, and it can also be corrected after the fact with photo software when using digital cameras. The photographer can also extend the bellows to its full length, tilt the front standard and perform photomacrography (commonly known as '[[macro photography]]'), producing a sharp image with depth-of-field without stopping down the lens diaphragm.