TESTING TELESCOPES STRAIGHT VIEWING
Application examples (additional collimator required):
■ Measurement of angular displacement
■ Parallelism measurement of uncoated flats
■ Testing of the imaging properties of optical elements and systems
Notes on ordering:
■ Testing telescope eyepiece is commonly f=14,7 mm but can be equipped with eyepieces f=25 mm or f=10 mm on request.
■ One reticle and one eyepiece are included in the standard instrument.
■ If not specified otherwise, the testing telescope is adjusted to infinity at 546 nm wavelength. Adjustment to other distances or wavelengths is also possible on demand.
■ The nomenclature of the testing telescopes with straight viewing is as follows:
Important: Please specify reticle when ordering.
Small-size Apertures
Art. No.
Description
Focal Length (mm)
Clear Aperture (mm)
Field of View
L
227 004
FG 50/40/14.7
50
10
10.0°
65
227 005
FG 90/40/14.7
90
16
6.0°
65
227 006
FG 140/40/14.7
140
28
4.0°
118
227 007
FG 200/40/14.7
200
28
3.0°
173
227 008
FG 300/40/14.7
300
28
2.0°
274
227 009
FG 500/40/14.7
500
28
1.0°
474
Mid-size Apertures
Art. No.
Description
Focal Length (mm)
Clear Aperture (mm)
Field of View
L
227 010
FG 300/65/14.7
300
50
2.0°
233
227 011
FG 500/65/14.7
500
50
1.0°
415
227 012
FG 500T/65/14.7*
500
50
1.0°
233
*Compact design
Large-size Apertures
Art. No.
Description
Focal Length (mm)
Clear Aperture (mm)
Field of View
D
a
b
c
d
e1
e2
227 015
FG 600/128/14.7
600
100
0.8°
Ø128f7
530
46
-
58
154
78
227 016
FG 1100/105/14.7
1100
78
0.5°
Ø105f7
1045
66
50
30
165
100