Artesky 80ED f/7 APO Refractor
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This new APO guarantees a chromatic correction at the highest levels thanks to a precise and maniacal construction and numerous checks, both in the production and in the sales phase; the image is not affected by any chromatic aberration and remains very clear and well contrasted.
EXTRA-LOW DISPERSION APOCHROMATIC
This apochromatic refractor manages to achieve very high levels of chromatic correction thanks to the combination of two optical glasses, the first is an Ohara (Japan) FCD1-B element while the second is a Lanthanum element, this combination produces a product free of chromatic error , managing to achieve much better performing results than a corresponding doublet refractor.
ADVANTAGES
- Opening 80mm
- Focal length 560mm
- 2-element lens with FCD1-B Ohara (Japan) and a Lanthanum element for a perfect color image!
- Internal baffles for greater contrast and less reflections
- R&P 2.5" dual-speed focuser with improved bearing - holds up to 4kg without problems
- The focuser can be motorized without any problems
- Screw connection via female thread M63x1 - connection 2" and 1.25"
- Telescope also excellent for observation with sharp and high contrast images
- Retractable lens hood
- The CNC tube rings and Vixen style dovetail bar
- Each refractor is visually and mechanically inspected and tested before shipping
DOUBLE FOCUS
It is possible to reduce the focal length of the 80 APO ED with its dedicated 0.8x reducer that you find among the recommended products, this allows you to reduce the focal length to 450mm and have a ratio equal to F/5.6
SPECIFICHE
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Apertura: |
80 mm |
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Lunghezza focale: |
560 mm |
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Rapporto focale: |
F/7.0 |
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Design ottico: |
Obiettivo doppietto (2 elementi) spaziato in aria |
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Composizione: |
Vetro FCD1-B Ohara (Japan) + Lantanio |
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Materiale del tubo: |
Alluminio |
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Peso del tubo |
3.1 kg inclusi anelli e barra |
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Lunghezza del tubo |
460 mm |
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Diametro del tubo |
89 mm |
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Anelli |
3x fori filettati M6 su entrambi i lati |
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Distanza dei fori M6 |
1x centrale, 2x a 13mm dal centro |
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Diametro esterno del paraluce |
103.6 mm |
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Focheggiatore |
2.5” a pignone e cremagliera |
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Connessione lato oculare |
1.25", 2" e M63x1 (filetto femmina) |
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Backfocus |
123 mm dall’attacco 2” / 161 mm dal filetto M63x1 |