Filter
Top Products
Telescope
Optical Design
7" LX200 f/15
Maksutov-Cassegrain Catadioptric
8" LX200 f/6.3
Schmidt-Cassegrain Catadioptric
10" LX200 f/6.3
Schmidt-Cassegrain Catadioptric
Clear Aperture 178mm (7") 203mm (8") 254mm (10")
Primary Mirror Diameter 194mm (7.625")
209.6mm (8.25)
263.5mm (10.375)
Focal Length
2670mm (105") 1280mm (50.4") 1600mm (63")
Focal Ratio f/15
f/6.3 f/6.3
Resolution
.64 arc sec.
.56 arc sec .45 arc sec
Super Multi-Coatings standard Standard Standard
Limiting Visual Magnitude (approx)
13.5
14.0 14.5
Limiting Photographic Magnitude (approx)
16.0
16.5 17.0
Image Scale ("/inch)
.55°/inch
1.14°/inch 0.91 "/inch
Maximum Practical Visual Power
450X
500X 625X
Near Focus
50' 25'
50'
Optical Tube Size
9.1" Dia. x 19" Long 9.1" Dia. x 16" Long
11.75" Dia. x 22" Long
Secondary Mirror Obstruction
2.5" (12.8%)
3.45" (18.6%)
4.0" (16.0%)
Telescope Mounting
Heavy-Duty Fork-Type
Double Tine
Heavy-Duty Fork-Type
Double Tine
Heavy-Duty Fork-Type
Double Tine
Setting Circle Diameters Dec.: 6"; R.A.: 8.75" Dec.: 6"; R.A.: 8.75" Dec.: 6"; R.A.: 8.75"
RA Motor Drive System
9-speed, microprocessor
controlled 12v. DC servo motor;
5.75" worm gear
with Smart Drive
9-speed, microprocessor controlled
12v. DC servo motor; 5.75" worm
gear
with Smart Drive
9-speed, microprocessor controlled
12v. DC servo motor; 5.75" worm
gear
with Smart Drive
Hemispheres of Operation
North and South -
switchable
North and South -
switchable
North and South -
switchable
Declination Control System 9-speed, DC servo controlled
5.75" worm gear with Dec drift
software
9-speed, DC servo controlled 5.75"
worm gear with Dec drift software
9-speed, DC servo controlled 5.75"
worm gear
with Dec drift software
Motor Drive Gear Diameter
5-3/4" Worm Gear 5-3/4" Worm Gear 5-3/4" Worm Gear
Manual Slow-Motion Controls Dec. and R.A. Dec. and R.A. Dec. and R.A.
Hand Controller Motorola 68HC05 microcontroller;
2 line x 16 alphanumeric character
display; 19 button keypad,
red LED
backlit
Motorola 68HC05 microcontroller; 2
line x 16 alphanumeric character
display; 19 button keypad,
red LED
backlit
Motorola 68HC05 microcontroller; 2
line x 16 alphanumeric character
display; 19 button keypad,
red LED
backlit
Main Controller 16 MHz 68000 microprocessor; 1
Meg program memory 16KRAM;
512 byte non-volatile memory
(EEROM)
16 MHz 68000 microprocessor; 1 Meg
program memory
16K RAM; 51 2 byte
non-volatile memory (EEROM)
16 MHz 68000 microprocessor; 1 Meg
program memory
16K RAM; 512 byte
non-volatile memory (EEROM)
Telescope Size, Swung Down
9.25" x 16" x 32.5"
9.25" x 16"x25" 12" x 19"x31"
35mm Angular Film Coverage
0.74° x 0.52°
1.55°x 1.08° 1. 24° x 0.86°
35mm Linear Film Coverage @:
50"
4.7" X 6.6"
9.7" x 13.6" 7.75" x 10.9"
500"
4.6' X 6.5'
9.4' x 13.3' 7.5' X 10.7'
3000"
27.4' x 38.9'
56.3' X 79.7'
45.0' x 63.8'
Tele-Extender Used Without Eyepiece @:
50'
4.4" x 6.5"
9.1" x 13.3"
7.3" X 10.6"
500'
4.2' x 5.5'
7.7' x 14.1'
6.1' X 9.0'
3000'
24' x 34' 48' x 70'
39' x 56'
Net Telescope Weights (approx)
Telescope
45# 37#
61#
Optional Equatorial Wedge
7# 7#
N/A
Optional Super Wedge
N/A N/A
26#
Field Tripod
20# 20#
20#
Accessories
8# 8#
a#
Shipping Weights (approx)
Telescope
65#
64# (w/ case)
69#
Equatorial Wedge (optional)
9#
9#
N/A
Super Wedge (optional)
N/A
N/A
38#
Field Tripod
26# 26# 26#
Case (for 10" models)
N/A N/A
Accessories
5# 5# 5#
62
APPENDIX G: LX200
SPECIFICATIONS