
Photographica Pages
An online guide to collectable cameras and related stuff
35/2.5 Angenieux for Exakta

The 35/2.5 Angenieux with manual diaphragm
In 1950 Angenieux introduced the first retrofocus wide angle
lenses for still reflex cameras. Angenieux had a reputation as a manufacturer of
top quality movie lenses. Their new retrofocus design finally allowed the single
lens reflex to become the versatile and dominant design it is today. Prior to
the advent of the retrofocus design, single lens reflex were hampered by the
lack of wide angle lenses that could be used with reflex viewing, as
non-retrofocus wide angle lenses protrude too far into the mirror box to allow
the mirror to swing up out of the way.
The retrofocus design is basically a telephoto turned around
backwards. This lens was made in many different mounts, including Alpa, Pentax
thread, Rectaflex and even Leica thread. The Leica version is very unusual, as
it is unnecessary as the Leica is not a single lens reflex and does not need the
clearance, so the lens is needlessly large. The lens was first offered in manual
diaphragm, then preset, and finally in automatic diaphragm. The
automatic version can be found finished in chrome.
