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Bresser NT-203 Manual

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Looking at or near the Sun will cause instant and irreversible damage to your eye!
23
te c h n I c a l da t a
AR-102 Achromatic refractor with EXOS 2
item number 47-02108
Optical design achromatic refractor
Clear aperture  4” = 102 mm
Focal length 1000 mm
Focal ratio f/10
Resolving power 1.11 arc sec
Coatings multi coated
Mount EXOS2 Aluminium-Guß, German type
equatorial
RA + DEC drive system flexible shafts
Max. practicle power 200x
Tripod adjustable steel-tube field tripod
Net weight 18.1 kg
AR-127 S/L Achromatic refractor with EXOS 2
item number 47-27638 / 47-27128
Optical design achromatic refractor
Clear aperture  5” = 127 mm
Focal length 635 mm or 1200 mm
Focal ratio f/5 or f/9,5
Resolving power 0.9 arc sec
Coatings multi coated
Mount EXOS2 Aluminium-Guß, German type
equatorial
RA + DEC drive system flexible shafts
Max. practicle power 250x
Tripod adjustable steel-tube field tripod
Net weight 20.2 kg or 21 kg
AR-152 S/L Achromatic refractor with EXOS 2
item number 47-52768 / 47-52128
Optical design achromatic refractor
Clear aperture  6” = 152 mm
Focal length 760 mm or 1200mm
Focal ratio f/5 or f/7,8
Resolving power 0.75 arc sec
Coatings multi coated
Mount MON2 Aluminium-Guß, German type
equatorial
RA + DEC drive system flexible shafts
Max. practicle power 300x
Tripod adjustable steel-tube field tripod
Net weight 24,6 kg or 24.8 kg
… 23 …


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