View source for F = 40 cm 1:5 Telyt I

[[Image:V40f5.jpg|400px]]

*'''Leica Order No.''' - TLCOO . '''LLC''' - 195 
*'''Production era''' - 1936-1955 < 3,450 lenses
*'''Variants''' - Meter and foot versions 
*'''Lens mount''' - Visoflex
*'''Number of lenses /groups''' - 4 / 3
*'''F stop range''' - f/5 - f/32
*'''Closest focusing distance''' - 8 m /26.25 ft
*'''Smallest object field''' - 
*'''Diaphragm setting /type''' -
*'''Angle of view''' diagonal - 6 degrees
*'''Filter types''' -  TFSOO + TGOOF + THWOO
*'''Accessories''' - Viewfinder: [[SQTOO]] - Hood: [[THMOO]] - TIOOD UV filter - TFSOO yellow filter
*'''Materials''' -  
*'''Dimensions''' (length x diameter) - 
*'''Weight''' - 2350 g /5.18 lb
*'''Inscription''' -   Telyt f=40cm 1/5 Nr. 4XXXXX Ernst Leitz Wetzlar

== Comment ==

*'''On the street''' - €EU 456 in 2007
*'''Forum discussion'''
**[http://www.l-camera-forum.com/leica-forum/leica-collectors-historica/79282-little-9-a.html JCB's a little...TLCOO]
**[http://www.l-camera-forum.com/leica-forum/leica-collectors-historica/29462-telyt-400-viso.html]
**[http://www.l-camera-forum.com/leica-forum/leica-collectors-historica/21456-your-favorite-leica-screw-mount-lens.html] [http://www.l-camera-forum.com/leica-forum/leica-collectors-historica/21456-your-favorite-leica-screw-mount-lens-2.html] [http://www.l-camera-forum.com/leica-forum/leica-collectors-historica/21456-your-favorite-leica-screw-mount-lens-3.html]

==  Serial numbers for F = 40 cm 1:5 Telyt I ==

{| class="prettytable"
!SN Start
!SN End
!Product
!Year
!Total
|-
|332001||332050||40 cm 1:5 Telyt ||1936||50
|-
|492001||492100||40 cm 1:5 Telyt ||1939||100
|-
|540501||540550||40 cm 1:5 Telyt ||1940||50
|-
|567001||567050||40 cm 1:5 Telyt ||1941||50
|-
|824001||824100||40 cm 1:5 Telyt ||1950||100
|-
|982001||984100||40 cm 1:5 Telyt ||1952||2100
|-
|1097001||1098000||40 cm 1:5 Telyt ||1953||1000
|-
|TOTAL||ASSIGNED||SERIAL NUMBERS ||1936-1964||3,450
|-
Serial numbers compiled from [http://www.l-camera-forum.com/leica-wiki.en/images/3/3e/Leica-puts-pocket-book.pdf Puts Pocket Pod.pdf]<br>
|}
Lens superseded by [[F = 40 cm 1:5 Telyt II]]