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AG Optical Systems quartz 17" F6.7 iDK For Sale

Price - $22,595.00

Ad Number: 119450

Posted: 28 Oct 2017

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The AG Optical Systems 17" F6.7 Imaging Dall Kirkham (iDK) astrograph is an observatory-class quality imaging instrument featuring a huge 60mm flat field free from astigmatism and coma. The outstanding optical performance of the 17" iDK is made possible through the use of an integral, permanently aligned field corrector combined with a high quality Dall Kirkham fused quartz F6.7 optical system. Wide field images are captured with high-contrast details and sharp stars across the entire field of view.

The AG Optical Systems 17" iDK F6.7 optical grade fused quartz optical system provides exceptional thermal stability. Ultra-low expansion fused quartz optics have 1/6 the coefficient of thermal expansion compared to the borosilicate glass used in other telescopes. Improved optical thermal stability enhances the figure and focus stability of the AG Optical Systems 17" iDK as the temperature changes over the course of an imaging session. When combined with the rigid, thermally stable carbon fiber truss tube assembly of the 17" iDK you can expect to spend less time focusing and more time collecting data.

Here are some details on our premium 17" Imaging Dall Kirkham F6.7 astrograph:

- Premium 17" imaging telescope with optical grade fused quartz optics (not lower end crystalline quartz optics)

- Optec TCF-S3i focuser ($1400 option) or Optec Gemini rotating focuser ($3095) or MoonLite NiteCrawler rotating focuser ($2950)

- Hand figured optics manufactured by master optician Terry Ostahowski

- Optics provided with an interferometry test report indicating system Strehl ratio

- Best in class quality 96% reflectivity coatings

- Huge corrected 60mm field of view free of coma, astigmatism, and field curvature with RMS radius spot sizes from 1.3 to 4.4 microns

- Fastest in class F6.7 focal ratio for large field of view and quick integration times

- System baffled for big chip cameras

- Precision carbon fiber truss tube for mechanical and thermal stability

- CNC machined 6061 anodized aluminum components with all stainless steel fasteners (no worries about rust anywhere on AG Optical scopes)

- Proudly made in the USA with USA-made components (including USA-made, interferometrically tested corrector lenses)

- Finally, AG Optical Systems is rapidly building a reputation for offering the best customer service in the business both pre- and post sale. Just ask our customers!

Call veteran-owned AG Optical Systems. You will speak to the owner who has designed every optical system in the AG Optical Systems lineup (the owner also builds every iDK that ships out of the shop).

Price: $22.595 OTA plus crating/shipping charges

Please contact AG Optical Systems to learn more.


Dave Tandy
Owner, AG Optical Systems


  • Condition New
  • Location USA

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