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Total instrument capacity 250 lbs.
Aperture 20"
Optical design Advanced Coma-Free
Optical coatings UHTC
Mount Robotic Equartorial
Gear pitch diameter 13.625"
Periodic error 5 arc sec.
Latitude 0-90°
No. of drive gear teeth 652 (RA & DEC)
MAX Mount™ $29,999
MAX 20" $34,999
 
 

20" LX400-ACF™ on MAX Robotic
German Equatorial Mount with Pier
[click here to enlarge diagram]

 

 
MAX Mount Only 20" LX400-ACF
Optical Design   Advanced Coma-Free
Clear Aperture   20"
UHTC™ Coatings Standard   Ultra-High Transmission Coatings (UHTCT)
Resolving Power (Dawes Limit)   .228 arc seconds
Focal Length, Focal Ratio   4064mm, f/8
Telescope Mounting   MAX Robotic Equatorial Mount
Periodic Error Correction Both axes

Five (5) arc seconds

Control Panel 2 multi-function, multi-port panels 2 multi-function, multi-port panels
Focus 4-speed front focusing mechanism   included
GPS, North sensors included 16-channel GPS receiver 16-channel GPS receiver (on Mount)
Pointing Precision High Precision Mode 1-arc min. High Precision Mode 1-arc min.
Autostar® II Hand Controller included (147,541 object database) included (147,541 object database)
Alignment Equatorial Equatorial
North electronic sensors Included Included
Temperature Control   Thermal stabilization fan
Power 12VDC, 5amp power supply required 12VDC, 5amp power supply required
Slew Speeds:

RA and Dec: 0.01x to1.0x sidereal, variable in0.01x increments; 2x, 8x, 16x, 64x, 128x sidereal; 1°/sec. to 2°/sec., variable in 0.1° increments All models

Tracking Rates

sidereal, lunar, or custom-selected from 2000 incremental rates All models

Primary, Secondary Mirrors   Pyrex® glass, fine-annealed
Correcting Plate/Lens   Borofloat
Counterweights Requires 2 - 35lb. Counterweights (included) Requires 5 - 35lb. Counterweights (included)
Accessories    
Total Net Weight 329 pounds (no counterweights) 190 pounds (OTA only)
 
 
Weights and Dimensions Weights Dimensions
RA Housing Assembly 66 pounds L = 20.75"; W = 18.85"; H = 20.34".
Dec Housing Assembly 75 pounds L = 18.25"; W = 15"; H = 20.45".
Counterweight Shaft Assembly 32 pounds without counterweights L = 38.1"; W = 1.25"
Individual Counterweight 35 pounds L = 5.9"; W = 5.9"; H = 2.96".
Portable Tripod 81 pounds Height: 26.5 inches; Footprint radius: 30 inches
Permanent Pier 39 pounds Minimum Height: 22"; Maximum Height: ?? Tube Diameter: 11.9"
 
Optical Tube Assembly (OTA)  
20” LX400-ACF OTA 190 pounds L = 40"; W = 25.7"; H = 25.7".
 
20" OTA + MAX Mount™ + Counterweights 694 pounds L = 40"; W = 25.7"; H = 99.67".
 
Optional Accessories  
20 pound Counterweight  
Dovetail Instrument mount assembly  
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