DayStar Filters 480E 80mm Refractor Telescope with Quark Sodium D-Line Filter Kit (OTA Only)

DayStar Filters 480E 80mm Refractor Telescope with Quark Sodium D-Line Filter Kit (OTA Only)

DayStar Filters 480E 80mm Refractor Telescope with Quark Sodium D-Line Filter Kit (OTA Only)

DayStar Filters 480E 80mm Refractor Telescope with Quark Sodium D-Line Filter Kit (OTA Only)

DayStar Filters 480E 80mm Refractor Telescope with Quark Sodium D-Line Filter Kit (OTA Only)

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Expected availability: 7-14 business days

Product Highlights

  • 80mm Achromatic Doublet Refractor
  • Conventional Nighttime Telescope
  • 480mm Focal Length, f/6 Focal Ratio
  • 2" Hybrid Focuser, Dielectric Diagonal
  • Sodium-D Solar and 12mm Blocking Filters
  • View Active Regions, Plage, Granulation
  • ±0.5Å Wing Shift Tuning
  • 2-Element Telecentric 4.2x Barlow Lens
  • Vixen-Style Dovetail Plate
  • OTA Only - Mount and Tripod Required
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SAFETY FIRST: Observing the Sun without the proper protection may result in serious personal injury, including permanent eye damage and blindness, and/or damage to equipment. Never point an optic at the sun without an approved solar filter on the front of the optic. For direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder, ensure your filter is ISO 12312-2 (also written as ISO 12312-2:2015) certified. Never use photographic neutral density filters for direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder.

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DayStar Filters 480E overview

  • 1Description

Daystar Filters put together the 480E 80mm Refractor Telescope with Quark Sodium D-Line Filter Kit to provide you with a versatile instrument for nighttime astronomical and daytime solar observations. This bundle comes with an 80mm achromatic doublet refractor OTA, the Quark solar filter tuned to the 5895.9Å wavelength, with a 90° dielectric-coated mirror diagonal.

  • 480E 80mm f/6 Achro Refractor Telescope (OTA Only)

    An ideal grab-and-go OTA for astronomical or solar viewing, Daystar Filters' 480E 80mm f/6 Achro Refractor Telescope is engineered with an achromatic doublet lens system and fully multi-coated optics that work together to improve light transmission and to produce color-accurate images without distortion across the entire field of view. For solar observing, the 80mm objective represents the maximum aperture that is safe to use without a front energy rejection filter, and the simple refractor optical configuration also eliminates the need for a rear IR/UV filter, so all that is required is a rear solar filter like the Daystar Quark.

    An innovative hybrid focuser combines the stability of a rack-and-pinion with the precision of a Crayford-style to enable fast yet fine focusing while still being able to handle heavier rear-weighted loads as from large eyepieces, accessories, imaging/photography rigs, and/or solar filters. It is outfitted with a 2" drawtube for using larger visual accessories. The OTA is constructed from CNC-machined aluminum with a gloss-black anodized finish that resists scratches. This OTA is offered here without a mount and tripod, but comes with a Vixen-style dovetail plate to easy attach to a wide variety of Alt-az, EQ, and motorized mount and support systems. To protect your investment during transport or in storage, the 480E comes with a hard aluminum carrying case.

    Optical Performance
    • Aperture: 80mm
    • Focal ratio: f/6
    • Focal length: 480mm
    • Doublet refractor optical configuration
    • Achromatic lens elements correct spherical and chromatic aberration to produce color-accurate images without distortion across the entire field of view
    • Fully multi-coated optics improve light transmission through the entire optical path
    • Retractable sunshade/dew shield
    • Large 2" drawtube
    • Hybrid focuser
    • Rack-and-pinion gets image close to focus
    • Crayford-style allows for super-fine focusing
    • Mount and tripod required
    • Vixen-style dovetail plate
    Carrying Case
    • Lightweight and durable aluminum
    • Custom-cut foam insert for OTA and visual accessories
    UPC: 724696425083
  • Sodium QUARK Na D-Line Eyepiece Solar Filter (1.25")

    Daystar Filters' Sodium QUARK Na D-Line Eyepiece Solar Filter is built to use a traditional nighttime astronomical OTA for solar observation. It departs from traditional K-line tuned filters, and focuses on the 5895.9Å D-line wavelength. This wavelength is very narrow but also very bright, so a specialized filter is required to isolate it. Na D-line is a low excitation line emitted when the low chromosphere is heated, usually at footprints of flux loops passing through a flare, as sodium D line reflects the lower chromosphere it shows impulsive-phase flare eruption kernels. Visual and photographic images will also reveal sunspot detail, plague, and granulation, but are much brighter and more easily visible. This configuration of the QUARK is not suited for off-axis application.

    With its integrated 12mm blocking (21mm clear aperture) filter there are no OTA aperture limitations, but Daystar recommends the use of refractor-style scopes with focal ratios between f/4-f/8, and you can enjoy full-disk viewing with focal lengths up to 450mm. Daystar further recommends the use of a UV/IR cut and objective Energy Rejection Filter (ERF) for safety. Built into the system is a 2-element 4.2x Barlow lens to boost the power of any eyepiece used with it, and its telecentric lens configuration ensures consistent image size and magnification across the entire field of view. Additionally, the Barlow lens is fully baffled to absorb scattered light to enhance contrast.

    This all-in-one filter design enables the use of nighttime telescopes for solar viewing, and is engineered to eliminate unnecessary components which reduced the size and weight. This streamlined form enables it to accept 1.25" eyepieces, and comes with a 1.25" snout - with an optional 2" snout available for use with larger drawtubes. The filter is powered via a micro-USB port, and Daystar includes a power cord and an AC adapter to meet the high-power requirements of 5 VDC 1.5A. To enable its use at home and abroad, a set of international outlet plugs is provided with adapters for the US, UK, EU, and Australia.

    Filter Properties
    • Tuned to sodium Na D-line 5895.9Å wavelength
    • Use to view impulsive-phase flare eruption kernels, sunspot detail, plague, granulation
    • Integrated 12mm blocking filter with a 21mm clear filter aperture
    • Tuning knob allows for ±0.5Å wing shift for Doppler-shift compensation
    • Markers at every 0.1Å for reference and repeatability
    • Optical coatings are engineered for the Na D-line 589nm wavelength
    • Internal baffles improve image contrast
    • Compatible with yellow glass ERFs — red filters will not pass Sodium
    Use and Handling
    • Use traditional astronomical telescopes for solar viewing
    • Standard configuration: Accepts 1.25" eyepieces and astrophotography adapters/accessories
    • Integrated 4.2x Barlow lens to effectively boost the magnification of any eyepiece used
    • Telecentric lens configuration ensures consistent image quality across the field of view
    • Includes a 1.25" snout, with an optional 2" available to fit larger drawtubes
    • LED indicators for power, warming, ready, and fault
    Recommended OTA Specifications
    • No aperture limitation
    • f/4 to f/8 refractor OTAs in full aperture
    • Full disk viewing on refractors with a focal length up to 450mm
    • Rear UV/IR cut filters recommended
    • Not suited for off-axis application
    • 5 VDC, 1.5A micro-USB port
    • 90-240 VAC wall adapter
    • Set of international outlet plugs for US, UK, EU, and Australia
    UPC: 724696425700
In the Box
Bundle Items
  • Aluminum Carrying Case
  • Limited 5-Year Warranty
  • Plastic Case
  • USB Power Cord
  • Wall Outlet Power Adapter
  • Set of International Plug Adapters
  • 1.25" Drawtube Snout
  • Limited 5-Year Warranty

Also Includes

  • 2" 90° Diagonal
Table of Contents
  • 1Description
  • 480E 80mm f/6 Achro Refractor Telescope (OTA Only)
    Optical Tube Assembly
    Optical Design Achromatic Doublet Refractor
    Aperture 80 mm / 3.2"
    Focal Length 480 mm
    Focal Ratio f/6
    Eyepiece Barrel Diameter 2"
    Diagonal No
    Finderscope No
    Mounting System Vixen Style
    Packaging Info
    Box Dimensions (LxWxH) 23.0 x 14.8 x 8.7"
  • Sodium QUARK Na D-Line Eyepiece Solar Filter (1.25")
    Type Sodium Na D-line
    Filter Factor 5895.9 Å wavelength
    Blocking 12 mm
    21mm clear aperture
    Size Drawtube side: 1.25"
    Eyepiece holder: 1.25"
    Multi-Coated Yes, tuned to 589 nm wavelength
    Magnification Internal 4.2x Barlow lens
    2-lens telecentric configuration
    Power Requirement 5 VDC, 1.5 A
    Construction Aluminum alloy
    Dimensions 3.6 x 2.8 x 2.2" / 9.1 x 7.1 x 5.5 cm

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