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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. Takahashi Epsilon 180 Telescope with EM-400 Mount

    Takahashi - Epsilon 180 Telescope with EM-400 Mount

    addition to the new Epsilon Series introduces the newly designed ED corrector and fast speed of f/2.8. ... Learn More
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    (48 States)
    Model#: TSS1802
    $19,999.95

  2. 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#: iDK17
    $20,995.00

  3. AG Optical 12.5" Dall Kirkham Astrograph Telescope

    AG Optical - 12.5" Dall Kirkham Astrograph Telescope

    A great benefit behind the Dall Kirkham design is excellent off-axis performance. The 12.5 astrograph from AG Optical is in a carbon fiber tub and has a medium focal ratio with a large aperture to support a variety optical and astrophotography combinations.

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    (48 States)
    Model#: iDK12.5
    $10,995.00

  4. Borg - 77 ED II f/4.6 Astrograph Set (2178 + 7150 + 7137 + 7753 + 7835 + 7870)

    Borg - 77 ED II f/4.6 Astrograph Set (2178 + 7150 + 7137 + 7753 + 7835 + 7870)

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    (48 States)
    Model#: B07746
    $1,695.00

  5. Borg - 45 ED II f/5 Astrograph Set (6045 + 7857 + 7885)

    Borg - 45 ED II f/5 Astrograph Set (6045 + 7857 + 7885)

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    (48 States)
    Model#: B04561
    $850.00

  6. Astro-Tech - 12" Ritchey Chretien Astrograph

    Astro-Tech - 12" Ritchey Chretien Astrograph

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    Model#: AT12RC
    $3,995.00

  7. Astro-Tech 10" Ritchey Chretien Astrograph with 3 Built in Rear Fans

    Astro-Tech - 10" Ritchey Chretien Astrograph with 3 Built in Rear Fans

    Developed by Astro-Tech to make large-format CCD imaging affordable for the amateur astronomer, the Astro-Tech AT10RCF is priced thousands of dollars less than the formerly least-expensive 10” R-C. The Astro-Tech AT10RCF is the first truly affordable large aperture true Ritchey-Chrétien astrograph available from a U. S. company.

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    Model#: AT10RCF
    $3,495.00

  8. Astro-Tech - 10" Ritchey Chretien Telescope

    Astro-Tech - 10" Ritchey Chretien Telescope

    Optical tubes based upon the Ritchey Chretien design are known very well for their successfull astrophotography, and the 10" optical tube by Astro-Tech is no different! What is different is the price!

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    (48 States)
    Model#: AT10RC
    $2,495.00

  9. Astro-Tech - 8" Ritchey Chretien Telescope

    Astro-Tech - 8" Ritchey Chretien Telescope

    A telescope with high quality optics is key to great observing. However, a high quality telescope priced reasonably is less common.

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    (48 States)
    Model#: AT8RC
    $1,395.00

  10. Astro-Tech 6" Ritchey Chretien Telescope

    Astro-Tech - 6" Ritchey Chretien Telescope

    Ritchey Chretien astrograph telescopes are exclusively used in many professional fields, including the HST. Astro-Tech has designed a 6" f/9 Astrograph that is based upon this design to the amateur astronomer at affordable prices.

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    (48 States)
    Model#: AT6RC
    $499.00

  11.  Borg - 77 ED II f/4.3 Astrograph Set (2178 + 7135 + 7835 + 7704)

    Borg - 77 ED II f/4.3 Astrograph Set (2178 + 7135 + 7835 + 7704)

    • BORG 77EDII OTA
    • 0.65x reducer
    • Total of 6 elements
    • 330mm focal length
    • F4.3
    • 35mm full-frame coverage
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    (48 States)
    Model#: B07743
    $2,175.00

  12. Orion - 10" f/3.9 Newtonian Astrograph Reflector Telescope

    Orion - 10" f/3.9 Newtonian Astrograph Reflector Telescope

    This affordable 10" astrograph is ideal for capturing stunning deep-sky astro-images.

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    Model#: 08296
    $649.95

  13. Orion - 8" f/3.9 Newtonian Astrograph Reflector Telescope

    Orion - 8" f/3.9 Newtonian Astrograph Reflector Telescope

    Orion's 8” aperture deep-sky imaging specialist boasts features usually reserved for much pricier astrophotography telescopes. In fact, the Orion 8” f/3.9 Newtonian Astrograph’s powerful imaging performance easily exceeds what’s achievable with many premium apo refractors costing thousands of dollars more.

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    Model#: 08297
    $519.95

  14. Pro RC 600 SITALL

    Officina Stellare - Pro RC 600 SITALL Optical set OTA

    PRO RCs from Officina Stellare: the choice of professionals!

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    Model#: PRC600SITOTA
    $82,269.99

  15. Officina Stellare - Pro RC 400 PREMIUM Package

    Officina Stellare - Pro RC 400 PREMIUM Package

    PRO RCs from Officina Stellare: the choice of professionals!

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    Model#: PRC400PRE
    $29,293.00

  16. Officina Stellare - Pro RC 400 FULL Package

    Officina Stellare - Pro RC 400 FULL Package

    PRO RCs from Officina Stellare: the choice of professionals!

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    Model#: PRC400FULL
    $25,100.00

  17. AG Optical - 20" Dall Kirkham 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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    FREE SHIPPING
    (48 States)
    Model#: iDK20
    $29,995.00

  18. AG Optical - 10" Newtonian Astrograph Telescope

    AG Optical - 10" Newtonian Astrograph Telescope

    The 10" Newtonian Astrograph from AG Optical features an exterior thermal stable, secure, and lightweight carbon fiber tube and optically has a fast focal ratio, corrected optics, and a large aperture making this optical tube excellent for photography of deep sky objects such as galaxies, nebulae, and star clusters.

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    (48 States)
    Model#: N10a
    $7,795.00

  19. AG Optical - 12.5" Newtonian Astrograph Telescope

    AG Optical - 12.5" Newtonian Astrograph Telescope

    The 12.5" Astrograph from AG Optical is a lightweight, thermally stable, and fast focal ratio optical tube for the most advanced astrophotographers out there.

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    (48 States)
    Model#: N12.5a
    $10,500.00

  20. Takahashi Epsilon 180 Telescope with EM-200 Mount

    Takahashi - Epsilon 180 Telescope with EM-200 Mount

    ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: TSS1800
    $16,299.95

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