Celestron 90mm Maksutov Cassegrain
Optical Tube with dovetail only - does not include a star diagonal, eyepiece, finderscope, mount or tripod.
May be supplied in grey (like the SLT version) or red (like SkyProdigy version)
- High quality 90mm Maksutov-Cassegrain
- Good for terrestrial and celestial observing
|Aperture (mm)||90 mm (3.54 in)|
|Focal Length||1250 mm (49 in)|
|Magnification of OPTIONAL 25MM Eyepiece 1||50 x|
|Magnification of OPTIONAL 9MM Eyepiece 2||139 x|
|Highest Useful Magnification||213 x|
|Lowest Useful Magnification||13 x|
|Limiting Stellar Magnitude||12.3|
|Resolution (Rayleigh)||1.55 arc seconds|
|Resolution (Dawes)||1.29 arc seconds|
|Light Gathering Power (Compared to human eye)||165 x|
|Apparent Field of View||1 °|
|Linear Field of View (@1000 yds)||53 ft (16 m)|
|Warranty||2-year Telescope Warranty|
Warranty: 2 years
- Optical Design
- Maksutov Cassegrain
- 4 inch
- Mount Type
- Single Fork Arm Altazimuth
- Focal Length
- 1325 mm
- Focal Ratio
- Optical Coatings
- Fully Coated
- What is more important?
- Image resolution over brightness
- Telescope to navigate for you?
- Yes, I would like a scope to guide me.