Zeiss 20-40 x 200, restored by Kevin Kuhne. 14 Jan. 2001.
Information on this model can be found in Hans Seeger, Military Binoculars 
and Telescopes for Land, Air and Sea Service, pages 167, 244, 246, 259, 
262, and 280.  The book includes more detailed images of the unique 
mechanisms designed for this glass, to solve the problem of a stationary 
eyepiece and an elevating objective tube, causing the right & left side 
have image rotation in opposite directions.  The solution is hugely 
complicated, a pair of image rotators that counter-rotate the image as the 
objectives are raised.  IPD is adjusted using the complex Cardano circle 
mechanism, as in the Zeiss 25 x 100.

20 - 40 x 200: http://home.europa.com/~telscope/2040x200.jpg    83 kb

Flats: Repolished to 1/20th wave, aluminized & overcoated.
http://home.europa.com/~telscope/flats.jpg    58 kb

Front of housing: Front view, before tubes were attached, showing 20x 
lenses in upright position.
http://home.europa.com/~telscope/fnt%60hsng.jpg   77 kb

Front:   http://home.europa.com/~telscope/front.jpg   116 kb

Side view with Kuhne:   http://home.europa.com/~telscope/kuhne.jpg   73 kb

Lamphouse:  Lamphouse for illumination of reticle.  Rheostat for 
brightness (top).  Blue & red filter selector switch (left).  Lamp change 
selector, introduces fresh light bulb (right)
http://home.europa.com/~telscope/lamphous.jpg    81 kb

Left interior:   http://home.europa.com/~telscope/leftintr.jpg   61 kb

Magnification change knob; and name plate (composite image)
http://home.europa.com/~telscope/mag%60knob.jpg   86 kb

Objective:   http://home.europa.com/~telscope/objectiv.jpg   95 kb

Objective 2:   http://home.europa.com/~telscope/objectv2.jpg   64 kb 

Ocular: Ocular plate showing orthoscopic oculars with aspheric eye lenses.  
Filter selector knob (left) and I.P.D. adjustment knob (right).
http://home.europa.com/~telscope/ocular.jpg   86 kb

Ocular2: Ocular plate & lamphouse for illumination of reticle (top).
http://home.europa.com/~telscope/ocular2.jpg   130 kb

Right interior:   http://home.europa.com/~telscope/rightint.jpg   36 kb

Side:   http://home.europa.com/~telscope/side.jpg   66 kb




Home page:   http://home.europa.com/~telscope/binotele.htm