Celestron PowerSeeker 70AZ Telescope PowerSeeker 40AZ Manual (English, French, - Page 25

PowerSeeker, Specifications - 21036

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PowerSeeker Specifications 21008 PS 40AZ 21039 PS 50AZ 21041 PS 60AZ 21036 PS 70AZ 21044 PS 76AZ Optical Design Aperture Focal Length Focal Ratio Optical Coatings Finderscope Diagonal Eyepieces Apparent FOV Erecting Eyepiece 1.5x w/20mm Barlow Lens - 3x (2x for 40AZ) Angular Field of View w/20mm eyepiece Linear FOV w/20mm eyepiece -ft@1000yds Refractor 40mm (1.6") 500mm f/12 fully coated 2x20 Star Diagonal 0.96" Refractor 50mm (2.0") 600mm f/12 fully coated 5x24 Star Diagonal 0.96" Refractor 60mm (2.4") 700mm f/12 fully coated 5x24 Erect Image 1.25" Refractor 70mm (2.8") 700mm f/10 fully coated 5x24 Erect Image 1.25" Newtonian 76mm (3.0") 700mm f/9 fully coated 5x24 n/a 20mm .96" (25x) 8mm .96" (63x) 20mm @ 32° 8mm @ 30° 38x 0.96" w/20mm (50x) w/8mm (125x) 1.3° 67 20mm .96" (30x) 12mm .96" (50x) 4mm .96" (150x) 20mm @ 32° 4mm @ 30° 45x 0.96" w/20mm (90x) w/12mm (150x) w/4mm (450x) 1.7° 89 20mm 1.25" (35x) n/a 4mm 1.25" (175x) 20mm @ 50° 4mm @ 40° n/a 1.25" w/20mm (105x) n/a w/4mm (525x) 1.4° 74 20mm 1.25" (35x) n/a 4mm 1.25" (175x) 20mm @ 50° 4mm @ 40° n/a 1.25" w/20mm (105x) n/a w/4mm (525x) 1.4° 74 20mm 1.25" Erect Image (35x) n/a 4mm 1.25" (175x) 20mm @ 50° 4mm @ 40° n/a 1.25" w/20mm (105x) n/a w/4mm (525x) 1.4° 74 Mount Altitude Locking Knob Azimuth Lock CD-ROM "The SkyX" Level 1 Altazimuth yes no yes Altazimuth yes no yes Altazimuth yes yes yes Altazimuth yes yes yes Altazimuth yes yes yes Highest Useful Magnification Limiting Stellar Magnitude Resolution -- Raleigh (arc seconds) Resolution -- Dawes Limit " " Light Gathering Power 100x 10.8 3.05 2.85 33x 120x 11.1 2.66 2.28 51x 142x 11.4 2.31 1.93 73x 165x 11.7 1.98 1.66 100x 180x 11.9 1.82 1.53 118x Optical Tube Length Telescope Weight - Optical Tube 18" (46cm) 0.8# (0.4kg) 22" (56cm) 1.5# (0.7kg) 28" (71cm) 2.0# (0.9kg) 30" (76cm) 6# (2.7kg) 26" (66cm) 8.5# (3.9kg) Note: Specifications are subject to change without notice or obligation 25

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25
PowerSeeker
Specifications
21008
21039
21041
21036
21044
PS 40AZ
PS 50AZ
PS 60AZ
PS 70AZ
PS 76AZ
Optical Design
Refractor
Refractor
Refractor
Refractor
Newtonian
Aperture
40mm (1.6")
50mm (2.0")
60mm (2.4")
70mm (2.8")
76mm (3.0")
Focal Length
500mm
600mm
700mm
700mm
700mm
Focal Ratio
f/12
f/12
f/12
f/10
f/9
Optical Coatings
fully coated
fully coated
fully coated
fully coated
fully coated
Finderscope
2x20
5x24
5x24
5x24
5x24
Diagonal
Star Diagonal
0.96"
Star Diagonal
0.96"
Erect Image
1.25"
Erect Image
1.25"
n/a
Eyepieces
20mm .96"
(25x)
20mm .96"
(30x)
20mm 1.25"
(35x)
20mm 1.25"
(35x)
20mm 1.25" Erect
Image (35x)
8mm .96" (63x)
12mm .96" (50x)
n/a
n/a
n/a
4mm .96"
(150x)
4mm 1.25"
(175x)
4mm
1.25"
(175x)
4mm 1.25"
(175x)
Apparent FOV
20mm @ 32
°
20mm @ 32
°
20mm @ 50
°
20mm @ 50
°
20mm @ 50
°
8mm @ 30
°
4mm @ 30
°
4mm @ 40
°
4mm @ 40
°
4mm @ 40
°
Erecting Eyepiece 1.5x w/20mm
38x
45x
n/a
n/a
n/a
Barlow Lens
-
3x
(2x for 40AZ)
0.96"
0.96"
1.25"
1.25"
1.25"
w/20mm
(50x)
w/20mm
(90x)
w/20mm
(105x)
w/20mm
(105x)
w/20mm
(105x)
w/8mm
(125x)
w/12mm
(150x)
n/a
n/a
n/a
w/4mm (450x)
w/4mm (525x)
w/4mm (525x)
w/4mm (525x)
Angular Field of View w/20mm eyepiece
1.3
°
1.7°
1.4°
1.4
°
1.4°
Linear FOV w/20mm eyepiece -ft@1000yds
67
89
74
74
74
Mount
Altazimuth
Altazimuth
Altazimuth
Altazimuth
Altazimuth
Altitude Locking Knob
yes
yes
yes
yes
yes
Azimuth Lock
no
no
yes
yes
yes
CD-ROM "The SkyX" Level 1
yes
yes
yes
yes
yes
Highest Useful Magnification
100x
120x
142x
165x
180x
Limiting Stellar Magnitude
10.8
11.1
11.4
11.7
11.9
Resolution -- Raleigh (arc seconds)
3.05
2.66
2.31
1.98
1.82
Resolution -- Dawes Limit
"
"
2.85
2.28
1.93
1.66
1.53
Light Gathering Power
33x
51x
73x
100x
118x
Optical Tube Length
18" (46cm)
22" (56cm)
28" (71cm)
30" (76cm)
26" (66cm)
Telescope Weight - Optical Tube
0.8# (0.4kg)
1.5# (0.7kg)
2.0# (0.9kg)
6# (2.7kg)
8.5# (3.9kg)
Note: Specifications are subject to change without notice or obligation