Editing 135 film (section)

=== Leica ===
[[File:Ur-Leica IMG 0259.JPG|thumb|Replica of a Leica prototype, 1913]]

The [[Leica Camera]] designed by [[Oskar Barnack]] used 35&nbsp;mm film, and proved that a format as small as 24&nbsp;mm × 36&nbsp;mm was suitable for professional photography.

Although Barnack designed his prototype camera around 1913, the first experimental production run of ur-Leicas (Serial No. 100 to 130) did not occur until 1923. Full-scale production of the Leica did not begin until 1925. While by that time, there were at least a dozen other 35 mm cameras available, the Leica was a success. It came to be associated with the format, mostly because of this 35 mm popularity, as well as the entire company legacy. Early Leica cameras are considered highly collectable items. The original Leica prototype holds the record as being the world's most expensive camera,<ref>{{cite web|url=http://collectiblend.com/Cameras/top_priced_cameras.php |title=Top 100 maximum valued cameras |access-date=July 2, 2013 |archive-url=https://web.archive.org/web/20130716190102/http://collectiblend.com/Cameras/top_priced_cameras.php |archive-date=July 16, 2013 |url-status=live |df=mdy }}</ref> selling for €2.16&nbsp;million in 2012.