User Manual for Coronado SolarMax III 70mm f 5.7 Double-Stacked H-alpha Solar Telescope Click to enlarge the picture
Contents of the user manual for the Coronado SolarMax III 70mm f 5.7
- Product category: Solar Telescopes Coronado
- Brand: Coronado
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Coronado Solar Telescopes
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User manual for the Coronado SolarMax III 70mm f 5.7 contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Coronado product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Coronado user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Coronado product will considerably shorten its lifespan!
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Product description A Buying Guide for Solar and Solar Eclipse Viewing Read More uyvyryqbterb Redesigned with external dual 60mm solar etalon filters and an upgraded 2-speed 2" rack-and-pinion focuser, Coronado's SolarMax III 70mm f/5.7 Double-Stacked H-alpha Solar Telescope builds on the success of their earlier iterations to provide users with a compact yet capable solar viewing optic. With the primary etalons now positioned externally, users can simply and easily remove the front solar and rear blocking filters to convert the SolarMax III into a competent nighttime viewing telescope - greatly increasing the scope's versatility.Specifically calibrated to isolate the hydrogen-alpha wavelength with a less than 0.5Å bandpass, the SM3's two etalons reduce the bandpass to refine the observation experience to see prominences in high-contrast against the black backdrop of space while revealing surface granulation and texture that broader bandpasses are unable to resolve. Each etalon has an independent tuning system that gives users the ability to precisely and easily bring them on-band to improve contrast and enhance views when atmospheric interference or Doppler-shift cause the optical system to come off-band. The primary etalon comes equipped with Coronado's rotating RichView tuning system, while the T-max tilt-tuner is employed on the secondary etalon. These two tuning methods ensure that interference between the two light paths is minimized, to further improve views.The SolarMax III gets an updated focusing system, versus the earlier iteration, with a 2" 10:1 dual-speed rack-and-pinion system from the previous 1.25" helical one. When used as a conventional scope, larger 2" conventional eyepieces and accessories can be used, or the more common 1.25" size with the addition of the included 1.25" reducer adapter. The more precise focuser is complemented by a rear 90° 10mm blocking filter to provide a comfortable field of view versus smaller 5mm versions, and allows for full-disk viewing with moderate and wide-field higher-magnification eyepieces. This secondary blocking filter is used to further isolate the H-alpha wavelength for improved contrast on surface granulation, and prominence detail. A larger blocking filter also enables the use of eyepieces with greater field-stop diameters to be used without vignetting occurring, as might occur with smaller blocking filters.To get users started, Coronado includes a 2"-to-1.25" reducer adapter and an 18mm 1.25" CEMAX eyepiece that produces a 22x power. The eyepiece holder and blocking filter will accept any 2" solar eyepiece or accessory, and with the reducer adapter any 1.25" eyepiece can also be used — further increasing the scope's versatility. The optical tube assembly is offered here without a mount or tripod, but comes with a Vixen-style dovetail plate for users who already have a reliable and stable mount and support system. To protect the OTA and accessories during transport and storage, Coronado includes a hard carrying case with custom-cut foam lining, that is color-matched to the OTA in their elegant Black and Gold color scheme. - Optical Tube Assembly
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- Use for daytime solar observation; or, with the solar and blocking filters removed, as a conventional nighttime scope
- 70mm aperture
- f/5.7 focal ratio
- 400mm focal length
- Achromatic refractor-style lens configuration
- Fully multi-coated optics improve light transmission, color rendition, contrast, and sharpness
- 10:1 dual speed rack-and-pinion focuser allows for fast coarse and precise fine focusing to achieve tack-sharp images
- 2" drawtube enables the use of larger eyepieces and accessories for full-disk viewing without vignetting
- Solar Filter
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- Double-stacked 60mm aperture solar filter system reduces the bandpass for improved contrast and views
- Fully external filters, etalons, and tuning systems allow filter to be completely removed
- Tuned for viewing in the hydrogen-alpha wavelength, at 6562.8Å with a bandpass if less than 0.5Å
- Reveals prominences in high contrast against the black backdrop of space
- Observe surface granulation and texture with high-contrast
- Rear 1.25" 10mm diagonal secondary blocking filter improves contrast, and allows for the use of eyepieces with larger field stop diameters without vignetting in the field of view
- Proprietary RichView tuning system on the primary etalon, and the T-max tilt tuner on the secondary, allow the etalons to be independently tuned for Doppler-shift compensation or to highlight specific zones without having the two tuned light-paths interfere with each other
- Thermal stability: 0.005Å/°C
- Mounting
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- Optical tube assembly only — mount and tripod required for proper use
- Mounting ring assembly allows the relative position of the OTA to the mount to be adjusted for proper balance and limit obstruction
- Vixen-style dovetail plate available for use with conventional telescope mounts
- Weight: 9.3 pounds
- Included Accessories
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CEMAX eyepiece:- 1.25" diameter barrel
- 18mm focal length yields 22x
- 52° field of view
- Fold-down rubber eyecup for use with or without eyewear
- Designed specifically for use at H-alpha wavelengths to improve contrast and minimize glare
- Long and comfortable 20mm eye relief
Sol Ranger viewfinder:- Solar finder enables safe aiming of the OTA at the sun
Carrying case:- Protects OTA and accessories during transport and storage
- Hard aluminum exterior with reinforced corners and edges
- Dual snap-lock latches with hinged handle
- Custom-cut interior foam lining
UPC: 709942998337 In the Box Coronado SolarMax III 70mm f/5.7 Double-Stacked H-alpha Solar Telescope (10mm Blocking, OTA Only) CEMAX 18mm H-Alpha Solar Eyepiece (1.25") uyvyryqbterb Sol Ranger Solar Viewfinder 90° 10mm H-Alpha Blocking Filter (1.25") 1.25" Eyepiece Reducer Adapter Cradle Ring Assembly with Dovetail Hard Carrying Case Limited 5-Year Warranty Solar and Solar Eclipse Viewing 101 Christopher Witt 12/14/2016 uyvyryqbterb Mark Your Calendars: North American Solar Eclipse 2017 Todd Vorenkamp and Christopher Witt 08/19/2016 Table of Contents
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Technical parametersCoronado SolarMax III Specs | | | Optical Design | Achromatic Refractor | | Aperture | 70 mm / 2.8" | | Focal Length | 400 mm | | Focal Ratio | f/5.7 | | Focuser | Dual-Speed Rack-and-Pinion | | Eyepiece Barrel Diameter | 1.25", 2" | | Finderscope | Yes | | Mounting System | Vixen Style | | | | Filtration Wavelength | Hydrogen-alpha | | Bandpass | <0.5 Å | | Blocking Filter | 10 mm (External) | | Thermal Stability | 0.005 Å/
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