Celestron XLT series - Manual (Page 49)

A A p p p p e e n n d d i i x x A A T T e e c c h h n n i i c c a a l l S S p p e e c c i i f f i i c c a a t t i i o o n n s s
Omni XLT Series 21088 21090 31057 11084
Omni XLT 102 Omni XLT 120 Omni XLT 150 Omni XLT 127
O segrain ptical Design Refractor Refractor Newtonian
Schmidt-
Cas
Aperture 102mm (4.0") 120mm (4.7") 150mm (6.0") 127mm (5.0")
Focal Length 1000mm 1000mm 750mm 1250mm
Focal Ratio f/10 f/8.3 f/5 f/10
O ght XLT Starbright XLT Starbright XLT ptical Coatings Starbright XLT Starbri
F ope 6x30 6x30 6x30 6x30 indersc
Star Diagonal 1.25" 1.25" n/a 1.25"
Eyepiece – (std) MC 50deg FOV 25mm (40x) 25mm (40x) 25mm (30x) 25mm (50x)
Mount - Equatorial Omni CG-4 Omni CG-4 Omni CG-4 Omni CG-4
T ripod Legs 1.75" Stainless 1.75" Stainless 1.75" Stainless 1.75" Stainless
C
3.2kg (7#) & 3.2kg (7#) & 3.2kg (7#) & 3.2kg (7#)&
ounterweights 1.8kg (4#) 1.8kg (4#) 1.8kg (4#) 1.8kg(4#)
Highest Useful Magnification 240x 283x 360x 300x
Lowest Useful Magnification 15x 17x 21x 18x
L ude 12.5 12.9 13.4 13.1 imiting Stellar Magnit
Resolution: Raleigh -arc seconds 1.36 1.19 0.92 1.1
Resolution: Dawest Limit 1.14 0.97 0.76 0.91
Light Gathering Power 212x 294x 459x 329x
Field of View - Angular w/25mm ep 1.25° 1.25° 1.67° 1.0°
Field of View - Linear w/25mm ep 66 ft. @1000yds 66 ft. @1000yds 88 ft. @1000yds 53 ft. @1000yds
Optical Tube Length 39.5" (1003mm) 40.0" (1016mm) 26.5" (673mm) 11.0" (279mm)
Optical Tube Weight 9.5 # ( 4.3kg) 12.5 # ( 5.7kg) 12.0 # (5.4kg) 6.5 # ( 3.0kg)
Mount & Counterweights - Weight 21.0 # ( 9.5kg) 21.0 # ( 9.5kg) 21.0 # ( 9.5kg) 21.0 # ( 9.5kg)
T eight 12.5 # ( 5.7kg) 12.5 # (5.7kg) 12.5 # ( 5.7kg) 12.5 # ( 5.7kg) ripod W
T otal Weight 43.0 # ( 19.5kg) 46.0 # ( 20.9kg) 45.5 # (20.6kg) 40.0 # (18.1kg)
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