User Manual

PowerSeeker Specifications

21039 21041 21036 21044

PS 50AZ PS 60AZ PS 70AZ PS 76AZ

Optical Design Refractor Refractor Refractor Newtonian

Aperture 50mm (2.0") 60mm (2.4") 70mm (2.8") 76mm (3.0")

Focal Length 600mm 700mm 700mm 700mm

Focal Ratio f/12 f/12 f/10 f/9

Optical Coatings fully coated fully coated fully coated fully coated

Finderscope 5x24 5x24 5x24 5x24

Diagonal Star Diagonal 0.96" Erect Image 1.25" Erect Image 1.25" n/a

Eyepieces 20mm .96" (30x) 20mm 1.25" (35x) 20mm 1.25" (35x)

20mm 1.25" Erect

Image (35x)

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 @ 50°

-- 10mm @ 40°

Barlow Lens - 3x 0.96" 1.25" 1.25" 1.25"

w/20mm (90x) w/20mm (105x) w/20mm (105x) w/20mm (105x)

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 1.7° 1.4°

1.4°

Linear FOV w/20mm eyepiece -ft/1000yds 89 74 74 74

Mount Altazimuth Altazimuth Altazimuth Altazimuth

Altitude Locking Knob yes yes yes yes

Azimuth Lock no yes yes yes

CD-ROM "The SkyX" yes yes yes yes

Highest Useful Magnification 120x 142x 165x 180x

Limiting Stellar Magnitude 11.1 11.4 11.7 11.9

Resolution -- Raleigh (arc seconds) 2.66 2.31 1.98 1.82

Resolution -- Dawes Limit " " 2.28 1.93 1.66 1.53

Light Gathering Power 51x 73x 100x 118x

Optical Tube Length 22" (56cm) 28" (71cm) 30" (76cm) 26" (66cm)

Telescope Weight 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