TESTING TELESCOPES FOCUS ADJUSTABLE – STR AIG HT-VI EWI NG WITH DIG ITAL DOUBLE
An adjustable focus telescope with digital double micrometer allows the distance between reticle and telescope objective to be adjusted for measurements made at other than infinity. Additionally, infinity can be set for different wavelengths of light. The programmable digital gauges of the telescope allow the operator to read directly angular displacement in arcsec or mrad.
Application examples:
■ Adjustment of optical and mechanical systems
■ Measurement of big radii of curvature (additional collimator required)
■ Adjustment for different wavelengths of light
■ Measurement of deflection angles (additional collimator required)
Notes on ordering:
■ Testing telescopes can be equipped with eyepieces f=25 mm or f=10 mm on request.
■ One reticle and eyepiece are included in the instrument.
■ Please specify the unit of reading (mm or arcsec or mrad) when ordering.
■ The nomenclature of the adjustable testing telescopes with straight viewing and digital double micrometer is as follows:
Important: Please specify reticle when ordering.
Small-size Apertures with MDD
Art. No.
Description
FL (mm)
CA (mm)
TE (mm)
MR
RS
Distance Range
L
227 681
FGV 90/40/14.7/±6 MDD
90
16
±6
6.0°
5.0"
-∞...-1.25 m
+1.40 m...+∞
77±6
227 682
FGV 90/40/14.7/+12 MDD
90
16
+12
6.0°
5.0"
+0.80 m...+∞
71+12
227 683
FGV 90/40/14.7/-12 MDD
90
16
-12
6.0°
5.0"
-∞...-0.60 m
83-12
227 684
FGV 140/40/14.7/±6 MDD
140
28
±6
4.0°
2.0"
-∞...-3.10 m
+3.30 m...+∞
77±6
227 685
FGV 140/40/14.7/+12 MDD
140
28
+12
4.0°
2.0"
+1.70 m...+∞
71-12
227 686
FGV 140/40/14.7/-12 MDD
140
28
-12
4.0°
2.0"
-∞...-1.40 m
83-12
CA = Clear Aperture FL = Focal Length TE = Tube Extension MR = Measurement Range RS = Resolution
Mid-size Apertures with MDD
Art. No.
Description
FL (mm)
CA (mm)
TE (mm)
MR
RS
Distance Range
A
B
L
227 687
FGV 300/65/14.7/±25 MDD
300
50
±25
1.0°
0.5"
-∞...-3.40 m
+3.80 m...+∞
220
245
140±25
227 688
FGV 300/65/14.7/+50 MDD
300
50
+50
1.0°
0.5"
+2.10 m...+∞
220
270
115+50
227 689
FGV 300/65/14.7/-50 MDD
300
50
-50
1.0°
0.5"
-∞...-1.50 m
220
220
165-50
227 690
FGV 500/65/14.7/±50 MDD
500
50
±50
0.5°
0.2"
-∞...-4.50 m
+5.40 m...+∞
310
360
165±50
227 691
FGV 500/65/14.7/+100 MDD
500
50
+100
0.5°
0.2"
+3.00 m...+∞
310
410
115+100
227 692
FGV 500/65/14.7/-100 MD
500
50
-100
0.5°
0.2"
-∞...-1.50 m
310
310
215-100
CA = Clear Aperture FL = Focal Length TE = Tube Extension MR = Measurement Range RS = Resolution
Large-size Apertures with MDD
Art. No.
Description
FL (mm)
CA (mm)
TE (mm)
MR
RS
Distance Range
L
227 696
FGV 1100/105/14.7/±50 MDD
1100
78
±50
0.16°
0.1"
-∞...-23.70 m
+25.80 m...+∞
161±50
227 697
FGV 1100/105/14.7/+100 MDD
1100
78
+100
0.16°
0.1"
+13.20 m...+∞
161+100
227 698
FGV 1100/105/14.7/-100 MDD
1100
78
-100
0.16°
0.1"
-∞...-12.00 m
161-100
CA = Clear Aperture FL = Focal Length TE = Tube Extension MR = Measurement Range RS = Resolution