Filter
Top Products
51
Appendix A Technical Specifications
Omni XLT Series 21088 21092 21090 21094 31057 11084
Omni XLT 102 Omni XLT 102ED Omni XLT 120 Omni XLT 150R Omni XLT 150 Omni XLT 127
Optical Design Refractor Refractor Refractor Refractor Newtonian Schmidt-Cassegrain
Aperture 102mm (4.0") 102mm (4.0") 120mm (4.7") 150mm (6.0") 150mm (6.0") 127mm (5.0")
Focal Length 1000mm 900mm 1000mm 750mm 750mm 1250mm
Focal Ratio f/10 f/9 f/8.3 f/5 f/5 f/10
Optical Coatings Starbright XLT Starbright XLT Starbright XLT Starbright XLT Starbright XLT Starbright XLT
Finderscope 6x30 6x30 6x30 6x30 6x30 6x30
Star Diagonal 1.25" 1.25" 1.25" 1.25" n/a 1.25"
Eyepiece - std. 1.25" MC 50° FOV 25mm (40x) 25mm (36x) 25mm (40x) 25mm (30x) 25mm (30x) 25mm (50x)
Mount - Equatorial Omni CG-4 Omni CG-4 Omni CG-4 Omni CG-4 Omni CG-4 Omni CG-4
Tripod Legs 1.75" Stainless 1.75 Stainless 1.75" Stainless 1.75" Stainless 1.75" Stainless 1.75" Stainless
Counterweights
3.2kg (7#) &
1.8kg (4#)
3.2kg (7#) &
1.8kg (4#)
3.2kg (7#) &
1.8kg (4#)
3.2kg (7#) &
1.8kg (4#)
3.2kg (7#) &
1.8kg (4#)
3.2kg (7#) &
1.8kg (4#)
Highest Useful Magnification 240x 240x 283x 360x 360x 300x
Lowest Useful Magnification 15x 15x 17x 21x 21x 18x
Limiting Stellar Magnitude 12.5 12.5 12.9 13.4 13.4 13.1
Resolution: Raleigh -arc seconds 1.36 1.36 1.19 0.92 0.92 1.1
Resolution: Dawes Limit " " 1.14 1.14 0.97 0.76 0.76 0.91
Light Gathering Power 212x 212x 294x 459x 459x 329x
Field of View - Angular w/25mm ep 1.25° 1.4° 1.25° 1.67° 1.67° 1.0°
Field of View - Linear w/25mm ep 66 ft. @1000yds 74 ft. @1000yds 66 ft. @1000yds 88 ft. @ 1000yds 88 ft. @1000yds 53 ft. @1000yds
Optical Tube Length 39.5" (1003mm) 37.0" (940mm) 40.0" (1016mm) 34.0" (864mm) 26.5" (673mm) 11.0" (279mm)
Optical Tube Weight 9.5 # ( 4.3kg) 8.0# (3.6kg) 12.5 # ( 5.7kg) 16.0 # (7.3kg) 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) 21.0 # ( 9.5kg) 21.0 # ( 9.5kg)
Tripod Weight 12.5 # ( 5.7kg) 12.5 # ( 5.7kg) 12.5 # (5.7kg) 12.5 # (5.7kg) 12.5 # ( 5.7kg) 12.5 # ( 5.7kg)
Total Weight 43.0 # ( 19.5kg) 41.5 # ( 18.8kg) 46.0 # ( 20.9kg) 49.5 # ( 22.5kg) 45.5 # (20.6kg) 40.0 # (18.1kg)
Note: Specifications subject to change without notice or obligation