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AG Optical Systems quartz 12.5" F6.7 iDK For Sale

Price - $9,495.00

Ad Number: 119447

Posted: 28 Oct 2017

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The AG Optical Systems 12.5" F6.7 Imaging Dall Kirkham (iDK) astrograph is a premium quality imaging instrument featuring a 60mm flat field free from astigmatism and coma. The outstanding optical performance of the 12.5" 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 12.5" iDK F6.7 quartz optical system provides exceptional thermal stability. Ultra-low expansion fused quartz optics have 1/6th the coefficient of thermal expansion compared to the borosilicate glass used in other telescopes. Improved optical thermal stability greatly enhances the figure and focus stability of the AG Optical Systems 12.5" 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 12.5" iDK you can expect to spend less time focusing and more time collecting data.

Here are some details on our premium 12.5" Imaging Dall Kirkham F6.7 astrograph:

- Premium 12.5" imaging telescope with fused quartz ultra-low expansion optics

- Hand figured fused quartz optics precision tested on a double pass interferometer as a system, manufactured by master optician Terry Ostahowski

- Optics provided with test report indicating system Strehl

- 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 42% more field of view compared to F8 systems

- System baffled for big chip cameras (no baffle retrofits on AG Optical iDK scopes, they were designed as big chip astrographs from the start!)

- Rock solid Optec TCF-S3i digital focuser ($1400), Optec Gemini rotating focuser ($3095) options compatible with widely available adapters

- 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 by a veteran-owned company with USA-made components (including USA-made, interferometrically tested corrector lenses).

When you buy an AG Optical Systems telescope you are supporting companies in Alabama, Colorado, Michigan, Missouri, California, Massachusetts, and Georgia.

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 AG Optical Systems and you will speak with the owner who has designed every optical system in the AG Optical Systems lineup.

Price for our iDK astrographs with fused quartz optics (includes interferometry test report, carbon fiber truss tube OTA, heavy duty dovetail plate, cooling fans, dust covers):

- 12.5" F6.7 fused quartz iDK OTA $9495 + shipping/crating

Contact Dave Tandy at AG Optical Systems to learn more.


  • Condition New
  • Location USA

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