150

 

 

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Zeiss Abbe Ortho

 

Euskaraz         

 
 

 

Optical data for viewing

Eyepiece Diameter of field stops D in mm Visible field of view W (º) Diameter of field of view with 1000mm objective focal length H Colored ring
A-4 3.3 45 11'20" light blue
A-6 5 45 17'10" turquoise
A-10 8.3 45 28'30" ocher
A-16 13.2 45 45'20" medium yellow
A-25 20.7 45 1º10' orange
A-34 24.3 40 1º 25' red

 

 

 

Distance from exit pupil to end of eyepiece

Eyepiece without spectacles (mm) with spectacles (mm)
  without Barlow lens with Barlow lens without Barlow lens with Barlow lens
A-4 2 2.1 - -
A-6 3.7 4 - -
A-10 5 5.7 - -
A-16 4 5.8 9.8 11.6
A-25 5 5 16 20.4
A-34 5 5 21 28.7

 

 

Zeiss Abbe eyepieces Product Information (pdf)

 

 
 

 

 

 

 

 

 

 

Zeiss Abbe Ortho II

 

 

 

 

 

 
 

 

 

Tele Vue Ethos

 

 

 

 

 

Eyepiece FL (mm) AFOV ER (mm) Field
Stop
(mm)		 Barrel (in.) Eyepiece Dimensions (in.) Weight
(lb / oz)		 Recommended
A B C D E F Bino Vue DIOPTRX
Digiscoping
Ethos 21.0 21 100 15 36.2 2" 4.3   1.62 2.95   -0.38 2.25 / 36.0   Y
Ethos 17.0 17 100 15 29.6 2" 4.5   1.4 2.4   -0.39 1.55 / 24.8   Y
Ethos 13.0 13 100 15 22.3 2" & 1¼" 4 1.6 1.1 2.5 1.1  0.27 1.30 / 20.8 Y Y
Ethos 10.0 10 100 15 17.7 2" & 1¼" 3.8 1.6 1.1 2.3 1.1 0.27 1.10 / 17.6 Y Y
Ethos 8.0 8 100 15 13.9 2" & 1¼" 3.3 1.7 0.94 2.1 1.2 0.7 0.95 / 15.2 Y Y
Ethos 6.0 6 100 15 10.4 2" & 1¼" 3.5 1.5 0.94 2.1 1.1 0.7 0.97 / 15.5 Y Y
Ethos 4.7SX 4.7 110 15 8.94 2" & 1¼" 5.4 0.9   2.2   0.25 1.30 / 20.8 Y Y
Ethos 3.7SX 3.7 110 15 7.04 2" & 1¼" 5 1.1   2.2   0.25 1.10 / 17.6 Y Y

 

 

 

 

 

 

 

 

 
 

 

Acknowledgements:

Zeiss

Tele Vue

Mark J Liu

Baader Planetarium

 

 

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