The largest aperture scope in the Ultima line, the 100 mm Ultima offers more than 50% brighter images than the 80mm, allowing for better performance in low light conditions. The 100 mm refractor features excellent multi-coated optics packed into a portable and durable refractor design and comes standard with a 22-66x zoom eyepiece. This series was designed to perform well in a range of viewing situations, making it a great all-around optical instrument. You’ll love it for observing nature and long distance spotting and since it is completely waterproof you can feel comfortable using it in extreme weather. The green rubber optical tube allows for subtle observation in any nature environment. Ultima spotters are a great companion for any nature or outdoor enthusiast. Soft carrying case included.
General
Optics
Aperture: |
100 mm (3.94 in)
|
Focal Length: |
540 mm (21 in)
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Focal Ratio: |
5.4
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Maximum Useful Magnification: |
236 x
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Optical Design: |
Refractor
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Other Features
Resolving Power: |
Rayleigh: 1.39 arcsec
•
Dawes: 1.16 arcsec
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Physical Specification
Eyepiece Barrel Diameter: |
8-24 Zoom
|
Finderscope: |
Sighting tube
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