Astrograph N 12" f/3.8
Images from the first night of tests
Astro Systeme Austria
Highly Corrected Carbon Fiber
Astrograph N 12" f/3.8
Images from the first night of tests
Astro Systeme
Austria Carbon fiber OTA
Astro Systeme Austria High Quality Optics
Astro Systeme Austria OTA rings
Losmandy dovetail plate
Integrated Philipp Keller field flattener (50mm corrected image circle)
Giant
JMI Crayford 3" NGF Xtn motofocuser
OTA fan system
Astro Systeme Austria 12" flight case
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Astrograph N12 f3,8 |
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Aperture |
305 mm ( 12" ) |
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Focal length |
1160 mm ( 45.67" ) |
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f/d ratio |
3.8 |
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Integrated field corrector |
3 lenses 3" (Wynne) |
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Corrected image circle |
50 mm ( 1.97" ) |
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Secondary Size |
120mm ( 4.72" ) |
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Central Obstruction |
39 % |
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Crayford Focuser |
3" JMI NGF Xtn |
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Tube |
CFK (Carbon Fiber) Sandwich |
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Total weight |
17 Kg ( 37.47lbs ) |
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Tube length |
101 cm ( 39.76" ) |
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Spot |
Astrograph 3D animation (download it) :
Collimation tools used with my ASA Astrograph :
