| TELESCOPE
MODEL: |
DS-60EC |
DS-70EC |
DS-80EC |
| Optical
Design |
Achromatic
Refractor |
Achromatic
Refractor |
Achromatic
Refractor |
| Optical
Diameter |
60mm
(2.4") |
70mm
(2.8") |
80mm
(3.1") |
| Focal
Length; f/ratio |
700mm
f/11.7 |
700mm
f/10 |
900mm
f/11.3` |
| Resolving
Power (arc secs) |
1.9 |
1.6 |
1.5 |
| Optical
Coatings |
Multi-coated |
Multi-coated |
Multi-coated |
| Limiting
Visual Magnitude |
11.0 |
11.3 |
11.6 |
| Maximum
Practical Visual Power |
200X |
250X |
275X |
Optical
Tube Dimensions
(diameter x
length) |
2.5"
x 27" |
3.0"
x 27" |
3.25"
x 34" |
| Focuser:
eyepiece barrel dias. |
1.25" |
1.25"
and 2" |
1.25"
and 2" |
| Mounting
Type |
Altazimuth |
Altazimuth |
Altazimuth |
#492
Dual-Motor Electronic
Control (EC) System |
Included;
4-speed |
Included;
4-speed |
Included;
4-speed |
| EC
Slew Speeds |
8x,
32x sidereal;0.75?/sec; 6?/sec |
8x,
32x sidereal;0.75?/sec; 6?/sec |
8x,
32x sidereal;0.75?/sec; 6?/sec |
| Batteries
(user-supplied) |
10
x AA |
10
x AA |
10
x AA |
| Battery
Life (approx.) |
|
|
|
|
with Electronic Controller |
45
hrs. |
45
hrs. |
45
hrs. |
|
with Autostar |
20
hrs. |
20
hrs. |
20
hrs. |
| Viewfinder |
5
x 24mm |
5
x 24mm |
6
x 30mm |
| Tripod |
Aluminum;
full-length; adjustable |
Aluminum;
full-length; adjustable |
Heavy-duty
Aluminum; full-length; adjustable |
| Compatible
with optional Autostar
Computer Controller |
Yes |
Yes |
Yes |
| Total
Telescope Net Weight (lbs.) |
10 |
11 |
14 |
| Shipping
Weight (lbs.; approx.) |
16 |
17 |
23 |
| |
|
|
|
| |
| TELESCOPE
MODEL: |
DS-90EC |
DS-114EC |
DS-127EC |
| Optical
Design |
Achromatic
Refractor |
Achromatic
Reflector |
Achromatic
Reflector |
| Optical
Diameter |
90mm
(3.5") |
114mm
(4.5") |
127mm
(5.0") |
| Focal
Length; f/ratio |
1000mm
f/11.1 |
910mm
f/8 |
1020mm
f/8 |
| Resolving
Power (arc secs) |
1.3 |
1.0 |
0.9 |
| Optical
Coatings |
Multi-coated |
Multi-coated |
Multi-coated |
| Limiting
Visual Magnitude |
11.8 |
12.4 |
12.6 |
| Maximum
Practical Visual Power |
300X |
325X |
350X |
Optical
Tube Dimensions
(diameter x
length) |
3.5"
x 38" |
5.5"
x 34" |
5.7"
x 38" |
| Focuser:
eyepiece barrel dias. |
1.25" and
2" |
1.25"
and 2" |
1.25"
and 2" |
| Mounting
Type |
Altazimuth |
Altazimuth |
Altazimuth |
#492
Dual-Motor Electronic
Control (EC) System |
Included;
4-speed |
Included;
4-speed |
Included;
4-speed |
| EC
Slew Speeds |
8x,
32x sidereal;0.75?/sec; 6?/sec |
8x,
32x sidereal;0.75?/sec; 6?/sec |
8x,
32x sidereal;0.75?/sec; 6?/sec |
| Batteries
(user-supplied) |
10
x AA |
10
x AA |
10
x AA |
| Battery
Life (approx.) |
|
|
|
|
with Electronic Controller |
45
hrs. |
45
hrs. |
45
hrs. |
|
with Autostar |
20
hrs. |
20
hrs. |
20
hrs. |
| Viewfinder |
6
x 30mm |
6
x 30mm |
6
x 30mm |
| Tripod |
Heavy-duty
Aluminum; full-length; adjustable |
Heavy-duty
Aluminum; full-length; adjustable |
Heavy-duty
Aluminum; full-length; adjustable |
| Compatible
with optional Autostar
Computer Controller |
Yes |
Yes |
Yes |
| Total
Telescope Net Weight (lbs.) |
15 |
18 |
20 |
| Shipping
Weight (lbs.; approx.) |
24 |
29 |
32 |
