Celestron Ultima 10x50 vs Celestron Ultima 10x42 - Compare Binoculars
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Celestron Ultima 10x50 | Celestron Ultima 10x42 |
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Celestron Ultima 10x50
Celestron
Celestron Ultima 10x42
CelestronCountry of Origin | USA | USA | - |
---|---|---|---|
Dimension Length | 6.9 in (+ 2) | 5.3 in | - |
Dimension Width | 7.3 in (+ 1) | 6.9 in | - |
Dimension Height | 2.4 in (+ 1) | 2 in | - |
Weight | 26.1 oz (+ 5) | 21.9 oz | - |
Color | Black | Black | - |
Release Year | - | 2020 | - |
Warranty | 3 Year | 3 Year | - |
Package Includes |
• Celestron Ultima 10x50 • Case • Neck strap • Eyepiece covers • Tethered objective covers |
• Celestron Ultima 10x42 • Case • Neck strap • Eyepiece covers • Tethered objective covers | - |

Celestron Ultima 10x50
Celestron
Celestron Ultima 10x42
CelestronSize | 10 x 50mm | - | - |
---|---|---|---|
Magnification | 10x | 10x | - |
Lens Coatings | Fully Multi-Coated | Fully Multi-Coated | - |
Prism Glass | BaK-4 | BaK-4 | - |
Optical Diameter | 50mm (1.97") | 42mm (1.65") | - |
Field of View - Angular | 6° | 6.5° | - |
Field of View - Linear | 315 ft (105 m) | 342 ft (114 m) | - |
Eye Relief | 18mm (0.71") | 15mm (0.59") | - |
Exit Pupil | 5mm (0.2") | 4.2mm (0.16") | - |
Near Focus | 22.9ft (7m) | 13.1ft (4m) | - |
Interpupillary Distance Range (Max) | 74mm (2.91") | 74mm (2.91") | - |
Interpupillary Distance Range (Min) | 50mm (1.97") | 50mm (1.97") | - |
Diopter Adjustment Range | ±4 | ±4 | - |
Twilight Factor | 22.36 | 20.49 | - |
Relative Brightness | 18 | 18 | - |
Limiting Stellar Magnitude |
Viewing Conditions - Ideal: 10.99 Moderate: 9.99 Poor: 8.99 | - | - |

Celestron Ultima 10x50
Celestron
Celestron Ultima 10x42
CelestronWaterproof | Yes | Yes | - |
---|---|---|---|
Diopter Adjustment | Yes | Yes | - |
Nitrogen-Filled | Yes | Yes | - |
Durable Rubber-Armored Coating | Yes | Yes | - |
Carrying Case | Yes, Black woven fabric case with hook-and-loop closure flap | Yes, Black woven fabric case with hook-and-loop closure flap | - |
Tripod Adaptable | Yes | Yes | - |
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