Description: I'm selling my used TPO 6" f/9 RC Telescope. This is the same model (rebranded for the late OPT shop) as the other GSO-made RC telescopes out there. I used it with the Astro-physics CCDT67 telecompressor/reducer and the GSO focuser tilt adjustment, both of which are included. As it's a used telescope, the mirror has some dust on it, as cleaning the mirror is beyond my skill set. Collimation is reasonably good but with shipping and time, may need to be re-done. Original manufacturer link: https://optcorp.com/products/tpo-6-f-9-ritchey-chretien-reflecting-telescope From the Manufacturer: Based on George Willis Ritchey and Henri Chretien optical design, the TPO 6" f/9 Ritchey Chretien Reflecting OTA Telescope is a versatile astrograph that can also be used for visual use. The RC Design contains a Hyperbolic shaped primary and secondary mirror to eliminate coma, chromatic aberrations, and spherical aberrations. For expert or professional astronomers interested engaged in scientific study, this telescope makes an excellent choice for astrometric measurements. Rear cell thread size is M90x1. TPO 6" f/9 Ritchey Chretien Reflecting OTA Telescope HighlightsNo Chromatic Aberration: a Ritchey Chretien doesn't use lenses or corrector plates, the design doesn’t suffer from chromatic aberrations ( false color).Goodbye Coma: an RC has virtually no comaNo Spherical Aberration: The use of hyperbolic mirrors for both the primary and secondary removes the problem of spherical aberration.Long Back Focus: 150mm from the focuser or 235mm from the rear thread allows you to mount lots of imaging gear.Fixed Primary: eliminates image-shift/mirror-flop and removes the need to collimate the primary mirror.Knife Edge Baffling System: computer designed and optimized baffle system prevent internal reflections and boost contrast. Includes:Astro-Physics CCD Focal Reducer for f/9-f/18 TelescopesGSO Focuser Collimation Ring / Tilt Adapter - For 6" and 8" CC / RC Telescopes with M90x1 Focuser ThreadTwo TPO 25MM Spacers for 6" RC (OS-TPORC-25MMSP)TPO 50MM Spacer for 6" RC (OS-TPORC-50MMSP)TPO LRS Crayford Focuser for Ritchey Chretien Telescopes (OS-CF-LRS)TPO 2" to 1.25" Adapter (OS-A2125)
Price: 199 USD
Location: San Jose, California
End Time: 2024-09-13T15:57:34.000Z
Shipping Cost: N/A USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Model: Chretien
Brand: TPO
Type: Reflector
Mount Type: Unmounted
Aperture: 152 mm
