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Телескопи > Explore Scientific > Explore Scientific MN-152/740 6" Optical Tube

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Цена
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Explore Scientific MN-152/740 6" Optical Tube

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Базова цена с ДДС: 2482,80 лв
Цена: 2482,80 лв
ДДС: 413,80 лв
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Описание

Explore Scientific MN-152/740 6" Optical Tube

Item #: 4852740

 

Optical design
Maksutov-Newton
Mount Type
Optics without Mount
Objective diameter (mm)
152
Focal length (mm)
740
Magnification (with included accessories) from
25
Maximum recommended magnification
300
Secondary mirror diameter (mm)
48
Focusing system
2" Crayford-Focuser with 10:1 Reducer
Warranty (Years)
3
Net weight OTA (incl. accessories) (kg)
7.9
Angular resolution (arc seconds)
0.86
Case
High-End Flight-Case
Primary mirror diameter (mm)
152
Rain/Dust protection caps
Dust protection caps for front lens and eyepiece holder
Obstruction (%)
32
Field of application
Deep Sky Observation
Deep Sky Photography
Lunar observation
Lunar photography
Planetary observation
Planetary photography
Focus Group
Advanced Amateurs
Visual enthusiasts
Specialists and Research
Height of image field width 24x36 mm receiver (degrees)
1.7
Colour
Carbon Fiber
Aperture ratio
5
Finderscope
8x50 DeLuxe Finderscope with Illumination and erect image
Tube length (mm)
825
Eyepiece Barrel Diameter (mm)
50.8
Width of image field width 24x36 mm receiver (degrees)
2.5
Material OTA
Carbon fiber
152/760mm Maksutov-Newton in carbon fibre tube.

Highly corrected optic for wide-field observation and astrophotography. Developed in collaboration with the famous "comet hunter" David H. Levy. The Maksutov-Newton system does have some pros and cons respectively to the classical newtonian design. Apart from the higher price the main disadvantage is the higher weight - the thick corrector lens at the front is the cause for this. The main advantage of the Maksutov-Newton compared to the classical newton is the sharpness of the field of view. Classical newtonian telescopes do show a sharp pinpoint star image only at the middle of the field of view - outside the optical axis they have a dominant abberation, the so called coma. This is inherent in the newtonian design, and therefore valid for all newtonian telescopes of all brands and not caused by manufacturing tolerances. Coma distorts the star image - the pinpoint star shows a tail, just like a small comet. This decreases sharpness and contrast considerably. The Maksutov-Newton shows a much sharper star image - for most applications the coma is not visible. This results in a high contrast image all over the field of view - for visual observations and for astrophotography with DSLRs alike. This makes the Maksutov-Newton a ideal all-purpose telescope, that is able to show a sharp field without the need for additional correctors.

Scope of delivery
• Optical Tube Carbon fiber with 2" focuser and reduction 10:1
• Carbon dew shield with dust cap
• Tube rings with dovetail
• Explore Scientific 70° Eyepiece 30mm (2")
• 8x50 finder, upright image and illumination
• Eyepiece Barrel diameter: 2 "and 1.25"
• Tools
• Instructions
• Moon Map
• Rotating star map
• Solid carrying case

Specifications: Overall length including dew shield: 825mm Net weight including tube rings, handle, dew shield and finderscope: 7,9kg

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