-
Topogon is a wide
field (originally 100
degrees field of view),
symmetrical photographic lens
patented by
Robert Richter in 1933 for Carl
Zeiss AG. As...
-
limited to f/20 due to
spherical and
chromatic aberrations.
Hypergon The
Topogon is a
double Gauss design arranged in a
symmetrical design. Due to its wide-angle...
- Sonnar. Ultragon,: 16–17 an
asymmetric design coupling the
front half of a
Topogon with the rear half of a
double Gauss design. Telomar,: 18–20 a telephoto...
- 210mmF7 Fax-Nikkor 260mmF10 - (Lens
Construction 4
elements in 4
groups /
Topogon Type Lens) Fax-Nikkor 300mmF7 - φ95mmP=1.0 **** Mount.
Designed for 10:1...
- 65 mm f/6.3–32 4 4 68°12' 75°30' — 3.5 ft (1.1 m) 43 mm 350 g (12 oz)
Topogon-type,
requires external viewfinder 75 mm f/5.6–45 7 4 61° 68° 77° 3.5 ft...
-
converging rear
group of the
Pleon was symmetrical,
derived from the 4-element
Topogon lens
designed by
Richter for
Zeiss in 1933.
Testing on a
captured lens...
-
survived so far)
Dagor 25/8.0 (2
lenses made, only 1
survived so far)
Topogon 25/4.5 (50
lenses made, only 1
survived so far)
During the war, CZ (Zeiss)...
-
Richter of Carl
Zeiss AG,
which was
filed in 1934 and sold by
Zeiss as the
Topogon. For this reason, it is
believed the
Metrogon lenses marked with this patent...
-
antecedents Schneider Angulon by
Tronnier (1930), from US 1,882,530
Zeiss Topogon by
Richter (1933), from US 2,031,792
Roosinov (1946), from US 2,516,724...
- "Hypergon -
Topogon -
Russar -
Biogon -
Aviogon - Hologon: La
storia definitiva dei super-grandangolari simmetrici" [Hypergon -
Topogon -
Russar - Biogon...
