Meade ETX-90 User Manual - Page 48

Specifications - maksutov cassegrain

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SPECIFICATIONS APPENDIX C: SPECIFICATIONS Model and Product Number Optical System Optical Design Primary Mirror Diameter Primary Mirror Material Focal Length, Focal Ratio Optical Coatings Resolving Power (arcseconds) Limiting Visual Stellar Magnitude Viewfinder Mount Mount Type Power Battery Life Tripod Electronics Controller Hand Box Included Accessories Eyepiece Bubble Level/Compass Astronomy Software Weight Telescope Tripod ETX90 # 3514-04-15 Maksutov-Cassegrain 3.5" (90mm) Optical quality glass 1250mm, f/13.8 Ultra-High Transmission Coatings (UHTC™) 1.3 arcseconds 11.7 Red Dot Dual Fork Altazimuth 6 "AA" Cell Batteries or AC Adapter 20 hours Adjustable-Height Steel Leg Tripod with EQ tilt-plate AutoStar #497 Super Plössl 26mm - 1.25" Included - 1.25" Included - for Windows OS 9.05 lbs. 13.3 lbs 48

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SPECIFICATIONS
Model and Product Number
ETX90 # 3514-04-15
Optical System
Optical Design
Maksutov-Cassegrain
Primary Mirror Diameter
3.5” (90mm)
Primary Mirror Material
Optical quality glass
Focal Length, Focal Ratio
1250mm, f/13.8
Optical Coatings
Ultra-High Transmission Coatings (UHTC™)
Resolving Power (arcseconds)
1.3 arcseconds
Limiting Visual Stellar Magnitude
11.7
Viewfinder
Red Dot
Mount
Mount Type
Dual Fork Altazimuth
Power
6 “AA” Cell Batteries or AC Adapter
Battery Life
20 hours
Tripod
Adjustable-Height Steel Leg Tripod
with EQ tilt-plate
Electronics
Controller Hand Box
AutoStar #497
Included Accessories
Eyepiece
Super Plössl 26mm - 1.25"
Bubble Level/Compass
Included - 1.25"
Astronomy Software
Included - for Windows OS
Weight
Telescope
9.05 lbs.
Tripod
13.3 lbs
APPENDIX C:
SPECIFICATIONS
±µ