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Astrograph Telescopes

For serious astrophotographers, an optical tube that has quality optics and suitable specifications is key to producing successful images. Astrographs come in many different specifications and designs, so each model can be oriented or preferred for a different type of imaging (eg. solar, terrestrial, deep sky etc). Some common designs include the Ritchey-Chrétien, Riccardi Honders, and Catadioptric optical tubes. Choosing an astrograph depends on how the astro-imager wants to observe, what focal length and focal ratio it has, aperture, optical coatings, and how suitable it is for the camera they intend to use.

A key specification very important to consider when choosing an astrograph is focal ratio in relation to aperture. This is an important to remember because focal ratio determines what the magnification and field of view the observor will get. Therefore, if the observor intends to mainly view deep sky objects with lower surface brightnesses, a shorter focal length will reduce magnification and increase field of view since most deep sky objects tend to appear very large but not bright. Astrograph telescopes with slower focal ratios such as an f/12 will provide higher magnification and smaller field of views; better for planetary observing.

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  1. Orion 10" f/8 Ritchey Cretien Optical Tube Assembly

    Orion - 10 " f/8 Ritchey Cretien Optical Tube Assembly

    Go after even the most elusive and faint deep-sky targets with the Orion 10" f/8.0 Ritchey-Chretien Astrograph. Featuring virtually coma-free optics for superb imaging performance, the Orion 10" f/8.0 Ritchey-Chretien Astrograph boasts a plethora of deluxe features

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    Model#: 08961
    $2,694.95

  2. Takahashi Epsilon 180ED f/2.8 Hyperbolic Flat-Field Astrograph Optical Tube Assembly

    Takahashi - Epsilon 180ED f/2.8 Hyperbolic Flat-Field Astrograph OTA

    The Takahashi Epsilon-180ED (D=180mm, F/2.8), based on catadioptric telescope design (means association of lenses and mirrors) offers a fundamental innovation compared with Newton reflector or Schmidt astrograph.

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    (48 States)
    Model#: TEK0180
    $5,400.00

  3. FSQ-85ED Astrograph OTA

    Takahashi - FSQ-85ED "Baby Q" Astrograph Telescope Optical Tube Assembly

    Introducing the Takahashi FSQ-85ED, the newest and smallest member of the FSQ Series of flat field astrographs. Designed from the ground up for digital imaging, the Takahashi Baby “Q” is the go anywhere, portable astrograph.

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    (48 States)
    Model#: FQK0085
    $3,650.00

  4. Takahashi FSQ-106ED "New Q" f/5 Astrograph Telescope

    Takahashi - FSQ-106EDXIII "New Q" f/5 Astrograph Telescope

    Now introducing the NEW Takahashi FSQ106! The FSQ106ED telescope features longer backfocus of 178mm to accommodate most CCD systems

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    (48 States)
    Model#: FSQ106EDXIII
    $5,150.00

  5. Takahashi - FSQ-85ED "Baby Q" Astrograph - (EM-11 Temma T-2M Mount)

    Takahashi - FSQ-85ED "Baby Q" Astrograph - (EM-11 Temma T-2M Mount)

    Introducing the Takahashi FSQ-85ED, the newest and smallest member of the FSQ Series of flat field astrographs.

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    (48 States)
    Model#: TSS0851
    $9,225.00

  6. Takahashi CCA-250 Tri-Focal Astrograph

    Takahashi - CCA-250 Tri-Focal Astrograph

    Designed to replace the Takahashi Baker-Ritchey Chretien BRC-250, the new Takahashi CCA-250P Tri-Focal Astrograph takes its place among the stars as the latest visual and astrophotogic instrument

    "Check out imaging and collimation results and pictures below by New Mexico Skies Staff!"

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    (48 States)
    Model#: TCCA250
    $16,795.00

  7. Takahashi - Epsilon 180ED Carbon Fiber  f/2.8 Hyperbolic Flat-Field Astrograph OTA - Limited Production

    Takahashi - Epsilon 180ED Carbon Fiber f/2.8 Hyperbolic Flat-Field Astrograph OTA - Limited Production

    This first addition to the new Epsilon Series introduces the newly designed ED corrector and fast speed of f/2.8. This fast field photo/visual astrograph is perfect for digital 35mm cameras and CCD cameras.

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    (48 States)
    Model#: TEK0182
    $5,400.00

  8. B04550

    Borg - 45 ED II f/5.0 Astrograph Set (2046 +7857 + 7610 + 7870)

    Modular design is a strong point of the Borg system. This allows the use of many Borg components across several families of telescope sizes, ... Learn More
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    Model#: B04550
    $1,140.00

  9. B05056

    Borg - 50 FL f/5.6 Astrograph Set (2551 + 7857 + 7610 + 7457 + 7609 + 7870)

    Modular design is a strong point of the Borg system. This allows the use of many Borg components across several families of telescope sizes ... Learn More
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    Model#: B05056
    $1,630.00

  10. ASA - Astrograph 20" f/3.6 Open Truss

    ASA - Astrograph 20" f/3.6 Open Truss

    The N-Series Astrographs may be used for three different focal lengths, by using appropriately calculated correctors.

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    Model#: ASA20NG-OK3
    $33,042.00

  11. Rila 400 F/3.8 PREMIUM Package

    Officina Stellare - Rila 400 F/3.8 PREMIUM Package

    The Riccardi Large Astrograph, RiLA, is the first of its kind thanks to the review of Italian optical designer, Massimo Riccardi. 

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    Model#: RILA400PRE
    $31,672.00

  12. AG Optical - 17" Dall Kirkham Astrograph Telescope

    AG Optical - 17" Dall Kirkham Astrograph Telescope

    The AG Optical 17" iDK Astrograph is an excellent astrograph for a wide variety of astrophotography. The telescope has a medium focal ratio of f/6.7 with 6 micron RMS spot size. This means that stars appear very pinpoint while still at large field of view.

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    (48 States)
    Model#: 17IDK
    $20,995.00

  13. AG Optical 20" iDK Astrograph Telescope

    AG Optical - 20" Dall Kirkham Astrograph Telescope

    The 12" AG Optical astrograph has a medium focal ratio of f/6.7 and features an RMS spot size of 6 microns which makes for pinpoint images of stars at low field of views. This optical tube has a two element <0.5% reflective corrector which makes this possible by reducing many of the common light distortions such as coma.

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    (48 States)
    Model#: 20IDK
    $29,995.00

  14. AG Optical 14.5" iDK Astrograph Telescope

    AG Optical - 14.5" Dall Kirkham Astrograph Telescope

    Imaging Dall Kirkham (iDK) astrographs are high resolution instruments with outstanding on and off axis performance across a 60mm field of view.

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    (48 States)
    Model#: 145IDK
    $14,975.00

  15. ASA - 200mm Hyperbolic Astrograph

    ASA - 200mm Hyperbolic Astrograph

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    Model#: 8HSOK3ZK

    Regular Price: $11,235.00

    Special Price: $9,999.00

  16. Takahashi Epsilon 130D Astrograph

    Takahashi - Epsilon 130D Astrograph

    Takahashi introduced their Epsilon Series flat-field hyperbolic astrographs in the middle 1980’s. The Epsilon-130 was the smallest aperture and most portable of the series. Now Takahashi is re-introducing the new ε-130D digital version of this astrograph.

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    (48 States)
    Model#: TEK1300
    $2,995.00

  17. AG Optical 12.5" Imaging Harmer Wynne Astrograph

    AG Optical - 12.5" Imaging Harmer Wynne Astrograph

    Imaging Harmer Wynne (iHW) astrographs are high resolution, fast focal ratio instruments with excellent on and off axis performance.

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    (48 States)
    Model#: iHW12.5
    $15,775.00

  18. AG Optical 16" Imaging Harmer Wynne Astrograph

    AG Optical - 16" Imaging Harmer Wynne Astrograph

    Imaging Harmer Wynne (iHW) astrographs are high resolution, fast focal ratio instruments with excellent on and off axis performance.

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    (48 States)
    Model#: iHW16
    $27,595.00

  19. Vixen Ultra Fast Astrograph VSD 100 f/3.8 Optical Tube Assembly

    Vixen - Ultra Fast Astrograph VSD 100 f/3.8 Optical Tube Assembly

    The innovative wide and flat imaging field, that covers 645 medium format cameras, and e 5 elements in 5 group lens design completely eliminates a violet tint in chromatic aberration (blue halo).

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    (48 States)
    Model#: VSD
    $6,299.00

  20. AG Optical 14" Imaging Harmer Wynne Astrograph

    AG Optical - 14" Imaging Harmer Wynne Astrograph

    Imaging Harmer Wynne (iHW) astrographs are high resolution, fast focal ratio instruments with excellent on and off axis performance.

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    (48 States)
    Model#: iHW14
    $23,975.00

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