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Description du produit
La série SkyMaster de jumelles à grande ouverture de Celestron est une valeur phénoménale pour des jumelles hautes performances idéales pour l'observation astronomique ou pour une utilisation terrestre (terrestre) - en particulier sur de longues distances.
Chaque modèle SkyMaster est doté de prismes BaK-4 de haute qualité et d'optiques multicouches pour un contraste amélioré. Celestron a conçu et conçu les plus grands modèles SkyMaster pour répondre aux exigences particulières des sessions d'observation astronomiques ou terrestres prolongées.
Caractéristiques
| Grossissement: | 15x |
| Diamètre de la lentille d'objectif : | 70 mm (2,75") |
| Distance focale de l'objectif : | 279,63 mm (11") |
| Champ de vision angulaire : | 4.4° |
| Champ de vision linéaire (@1000 yds) / @1000 m): | 231 pi (77 m) |
| Élève de sortie : | 4,7 mm (0,18") |
| Soulagement des yeux : | 18 mm (0,71") |
| Mise au point rapprochée : | 43 pi (13 m) |
| Distance interpupillaire (max): | 72mm (2.83") |
| Distance interpupillaire (min): | 56mm (2.20") |
| Plage de réglage dioptrique : | -4 à +8 |
| Facteur crépusculaire : | 32.4 |
| Luminosité relative : | 22.09 |
| Limitation de la magnitude stellaire : | Idéal : 11,73 Modéré : 10,73 Pauvre : 9,73 |
| Revêtements de lentille : | Multicouche |
| Verre à prisme (type) : | BaK-4 |
| Revêtements de prisme : | N / A |
| Lester: | 48 onces (1361 g) |
| Protection environnementale: | Résistant à l'eau |
| Rempli d'azote : | Non |
| Adaptable sur trépied : | Oui |
| Mallette de transport: | Nylon |
| Dimensions: | 220 mm x 110 mm x 280 mm (8,7" x 4,3" x 11,0") |