Explore Scientific MN 152/740 Maksutov-Newton OTA
Using a catadioptric Newtonian design, the Explore Scientific MN 152/740 Maksutov-Newton OTA combines a 152mm aperture with 740mm focal length, carbon fiber construction, and a 2-inch focuser.
- 152mm aperture provides 0.76-arcsecond resolution
- 740mm focal length uses f/4.87 optics
- Maksutov-Newtonian design uses BK7 corrector
- 8×50 finder and cooling interface included
In Stock
Description
Compact wide-field catadioptric performance defines the Explore Scientific MN 152/740 Maksutov-Newton OTA, a 152 mm Maksutov-Newtonian optical tube with a 740 mm focal length and listed f/4.87 optical ratio. Its carbon-fiber tube includes a 2-inch Crayford focuser with 10:1 reduction, BK7 meniscus corrector lens, 8×50 illuminated finder, cradle rings with handle, Vixen-style dovetail, 25 mm eyepiece, and dual cooling-fan interface for a compatible visual or imaging system.
The supplied OTA is intended for use with a separately selected mount and tripod, while the carbon-fiber structure provides the stated lightweight optical configuration and the Maksutov-Newtonian design supports the listed wide-field observation and supported astrophotography applications. Final tracking, payload, camera spacing, collimation, thermal behavior, and image quality depend on the complete telescope system and selected accessories.
Key Features of Explore Scientific MN 152/740 Maksutov-Newton OTA
This standalone Maksutov-Newtonian combines a 152 mm aperture with a 740 mm focal length, BK7 meniscus corrector, carbon-fiber optical tube, 2-inch Crayford focuser, 10:1 reduction, 8×50 finder, cradle rings, Vixen rail, 25 mm eyepiece, and cooling-fan interface.
- 152 mm Maksutov-Newtonian optical system
- 740 mm focal length with listed f/4.87 optical ratio
- BK7 meniscus corrector lens
- Carbon-fiber optical tube
- 2-inch Crayford focuser with 10:1 reduction
- 8×50 illuminated optical finder
- Cradle rings with carrying handle
- Vixen dovetail, 25 mm eyepiece, and cooling-fan interface
Wide-Field Visual and Imaging Configuration
The supplied application focuses on wide-field deep-sky observation, cometary targets, star clusters, nebulae, lunar viewing, and supported astrophotography, with the 740 mm focal length supporting the listed fast optical format while final mount stability, camera compatibility, guiding, cooling, collimation, and focus spacing depend on the completed system.
Why Choose Explore Scientific MN 152/740 Maksutov-Newton OTA
The Comet Hunter OTA is relevant when a compact carbon-fiber catadioptric reflector is needed with a fast focal ratio, 2-inch 10:1 Crayford focusing, large 8×50 finder, cradle rings, carrying handle, Vixen mounting, supplied 25 mm eyepiece, and a cooling interface for a compatible observation or imaging platform.
- 152 mm aperture with the listed fast Maksutov-Newtonian format
- Carbon-fiber tube with 2-inch 10:1 Crayford focuser
- Finder, eyepiece, rings, handle, rail, and cooling interface included
Explore Scientific 2-Year Limited Warranty
The supplied product information lists a 2-year limited warranty for this optical tube assembly, and the applicable warranty terms, optical coverage, focuser coverage, finder coverage, cooling-interface coverage, registration requirements, and authorized service process should be confirmed before purchase because the mount, tripod, and other system components are selected separately.
Explore Scientific MN 152/740 Maksutov-Newton OTA Specs
| Brand | Explore Scientific (Bresser) |
| Full Model Code | Explore Scientific Comet Hunter 152mm Maksutov-Newtonian OTA (MN152740) |
| Country of Origin | United States / China |
| Optical Design | Maksutov-Newtonian (Catadioptric Core) |
| Aperture | 152 mm (6.0 inches) |
| Focal Length | 740 mm |
| Focal Ratio | f/4.87 |
| Optical Coatings | Premium StarBright Equivalent Enhanced Multi-Lens Coating Matrix (EMC) |
| Glass Material | Premium BK7 Meniscus Corrector Lens Element |
| Secondary Mirror Obstruction | 49 mm |
| Secondary Mirror Obstruction by Diameter | 32% |
| Secondary Mirror Obstruction by Area | 10.4% |
| Resolving Power | 0.76 Arcseconds (Dawes), 0.91 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 13.4 |
| Highest Useful Magnification | 300x |
| Lowest Useful Magnification | 22x |
| Optical Tube Material | Premium High-Modulus Carbon Fiber weave structure |
| Focuser Style & Mechanism | 2.0-inch Crayford Focuser with 10:1 Dual-Speed Gear Reduction Assembly |
| Mirror Lock Mechanism | No |
| Optical Tube Dimensions | 180 mm x 696 mm |
| Optical Tube Weight | 6.35 kg (14.0 lbs) |
| Mount Attachment Type | Universal Vixen Style Dovetail Bar with Stainless Steel Rail Protection Profile |
| Finder Scope Specification | 8x50 Illuminated Optical Finder Scope with Bracket |
| Included Accessories | Carbon Fiber Tube Assembly, Cradle Rings with Handle, Vixen Style Dovetail Plate, 8x50 Illuminated Finder, 25mm Eyepiece, Dual Cooling Fans Interface Module |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Achromatic color correction tracking and wide-field astrophotography, packing an absolute coma-free catadioptric baseline configuration to eliminate visual distortions during deep-sky survey sweeps. |
























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