View source for Hektor f= 5 cm 1:2.5

7 o'clock 2.5/5cm Hektor in chrome and nickel versions: 

[[Image:5hektor25.jpg|200px]] [[Image:5hektor25c.jpg|190px]]
*'''Leica Order No.''' - HEKTO, KUP or CHROM  '''LLC''' -  116
*'''Production era''' - 1930-1936,  10,600 lenses
*'''Variants''' -  Nickel plated until 1933, chrome plated 1933-1936, 11 o'clock (early) & 7 o'clock (later) versions 
*'''Lens mount''' - Leica Screw-thread 
*'''Number of lenses /groups''' - 6 /3
*'''F stop range''' - f/2.5-f/18
*'''Closest focusing distance''' - 1 m
*'''Smallest object field''' -
*'''Diaphragm setting /type''' -
*'''Angle of view''' diagonal - 45 degrees
*'''Filter type''' -  21 mm
*'''Accessories''' - HEPRO HEPIK HEPET (see Forum discussion [1] below + [[ELCAT]])
*'''Materials''' -  Nickel or chrome plated brass
*'''Dimensions''' (length x diameter) -
*'''Weight''' - 190 g /6.70 oz
*'''Inscription''' - Leitz Hektor f=5cm. 1:2,5 - Leitz Hektor 1:2,5 F=5cm (50mm)
== Comment ==
*'''On the street''' - $US 400 (KUP) - 300 (CHROM) in 2010
*'''Forum discussion'''
**[http://www.l-camera-forum.com/leica-forum/leica-collectors-historica/78730-little-6-a.html JCB's a little...II]
**[http://www.l-camera-forum.com/topic/248271-filter-thread-on-leitz-hektor-50-25/]
*'''Reviews'''
**[http://www.marcocavina.com/articoli_fotografici/50mm_Leica_a_telemetro/00_pag.htm Marco Cavina]

== Hektor f= 5 cm 1:2.5 Serial Numbers ==

{| class="prettytable"
!SN Start
!SN End
!Product
!Year
!Total
|-
| -58604||93847- ||Hektor 5 cm 1:2.5 (KUP)||1930||35,244+
|-
| -94086||96423-||Hektor 5 cm 1:2.5 (KUP)||1931||2,338+
|-
| -121331||125842-||Hektor 5 cm 1:2.5 (KUP)||1932||4,512+
|-
| -131265||140256-||Hektor 5 cm 1:2.5 (KUP/CHROM)||1933||8,992+
|-
|156001||156500||Hektor 5 cm 1:2.5 (CHROM)||1933||500
|-
|161001||162000||Hektor 5 cm 1:2.5 (CHROM)||1933||1000
|-
|168001||169000||Hektor 5 cm 1:2.5 (CHROM)||1933||1000
|-
|178001||179000||Hektor 5 cm 1:2.5 (CHROM)||1933||1000
|-
|183001||183100||Hektor 5 cm 1:2.5 ||1933||100
|-
|325001*||327000||Hektor 5 cm 1:2.5 ||1936||2000
|-
|TOTAL||ASSIGNED||SERIAL NUMBERS ||1933-1936||5,600
|-
Serial numbers compiled from known lenses and [http://www.l-camera-forum.com/leica-wiki.en/images/3/3e/Leica-puts-pocket-book.pdf Puts Pocket Pod.pdf]<br>
Note: Pre-156001 numbers compiled from known lenses<br>*Lens 326815 is a Hektor 13.5 cm 1:4.5 (Westlicht Lot 87/06)