F = 20 cm 1:4.5 Telyt

Leica Order No. - OTPLO - TOOLP (lens head with Ploot), 11 063 . LLC - 192
Production era - 1935-1960 < 17,100 lenses
Variants - meter and feet, scalloped focusing knurl (SFK) versions
Lens mount - Visoflex
Number of lenses /groups - 5 /4
F stop range - f/4.5 - f/32
Closest focusing distance - 3 m /9.8 ft
Smallest object field -
Diaphragm setting /type - 20-blade
Angle of view diagonal - 12 degrees
Filter type - E48
Accessories - Viewfinder: SFTOO - Hood: SUNGO and later TNGOO; 14023 extension tube.
Materials -
Dimensions (length x diameter) -
Weight - 550 g / 1.2 lb
Inscription - Ernst Leitz GmbH Wetzlar Teylt f=20cm 1:4.5 Nr.1XXXXXX
Designer -

Comment

Serial numbers compiled from Puts Pocket Pod.pdf

SN Start	SN End	Product	Year	Total
230001	230300	20 cm 1:4.5 20cm	1934	300
272001	273000	20 cm 1:4.5 Telyt	1935	1000
416001	416500	20 cm 1:4.5 Telyt	1937	500
472501	473000	20 cm 1:4.5 Telyt	1938	500
571101	571300	20 cm 1:4.5 Telyt	1941	200
582001	582200	20 cm 1:4.5 Telyt	1941	200
677001	677500	20 cm 1:4.5 Telyt	1948	500
768001	769000	20 cm 1:4.5 Telyt	1950	1000
898001	899000	20 cm 1:4.5 Telyt	1951	1000
1072001	1073000	20 cm 1:4.5 Telyt	1953	1000
1170001	1171000	20 cm 1:4.5 Telyt	1954	1000
1256001	1257000	20 cm 1:4.5 Telyt	1955	1000
1366501	1367500	20 cm 1:4.5 Telyt	1956	1000
1445001	1446000	20 cm 1:4.5 Telyt	1956	1000
1501001	1501500	20 cm 1:4.5 Telyt	1957	500
1503001	1503500	20 cm 1:4.5 Telyt	1957	500
1548001	1549000	20 cm 1:4.5 Telyt	1958	1000
1559001	1559100	20 cm 1:4.5 Telyt	1958	100
1612001	1612300	20 cm 1:4.5 Telyt	1958	300
1682001	1683000	20 cm 1:4.5 Telyt	1959	1000
1710001	1711000	20 cm 1:4.5 Telyt	1959	1000
1749001	1749500	20 cm 1:4.5 Telyt	1960	500
1753001	1754000	20 cm 1:4.5 Telyt	1960	1000
1830001	1831000	20 cm 1:4.5 Telyt	1961	1000
TOTAL	ASSIGNED	SERIAL NUMBERS	1934-1961	17,100