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18 I ITALIANO
DATI
TECNICI
Modello n. 21035
Travel Scope 70
Modello n. 21038
Travel Scope 50
Design ottico Telescopio rifrattore Telescopio rifrattore
Apertura 70 mm (2,8 pollici) 50 mm (2,0 pollici)
Lunghezza focale 400 mm (25 pollici) 360 mm
Rapporto focale f/5,7 f/7,2
Rivestimenti ottici Completamente rivestiti rivestiti
Cannocchiale cercatore 5x24 2x20
Diagonale
Diagonale raddrizzatore d’immagine -
45° 32 mm (1,25 pollici)
Diagonale raddrizzatore d’immagine da
24 a 31 mm (0,96 -1,25 pollici) - 45°
Oculari 20 mm - 1,25 pollici (20x) 20 mm - 1,25 pollici (18x)
10 mm - 1,25 pollici (40x) 8 mm - 1,25 pollici (45x)
Lente di Barlow – 3x 1,25 pollici N/A Sì (54x & 135x)
Campo visivo apparente 20 mm a 50° 20 mm a 32°
10 mm a 50° 8 mm a 30°
Campo visivo angolare 20 mm a 2,5° 20 mm a 1,6°
10 mm a 1,3° 8 mm a 0,
Campo visivo lineare --
piedi/1000 iarde 20 mm a 131/44 20 mm a 84/28
m/1000 metri 10 mm a 67/22 8 mm a 37/13
Messa a fuoco minima con oculare da 20 mm 5,8 m (19 piedi) 4,5 m (15 piedi)
Montatura Altazimutale (treppiedi fotografico) Altazimutale (treppiedi fotografico)
Manopola di bloccaggio dell’altezza
Manopola di bloccaggio altazimutale No No
Scarica del Software di Astronomia
Ingrandimento utile massimo 168x 120x
Magnitudine stellare limite 11,7 11,1
Risoluzione -- Raleigh (secondi d’arco) 1,98 2,66
Risoluzione – Limite di Dawes “ “ 1,66 2,28
Potere di raccolta di luce 100x 51x
Lunghezza del tubo ottico 43 cm (17 pollici) 30 cm (12 pollici)
Peso del telescopio 1,5 kg (3,3 libbre) 1,0 kg (2,2 libbre)
Nota: Le specifiche tecniche sono soggette a cambiamenti senza obbligo di notifica.
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