Parallax PI320 - 12.5" f/6 Newtonian Reflector OTA

Parallax PI320 - 12.5" f/6 Newtonian Reflector OTA
$5,850.00
Item # PA-PI320
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  • The Parallax Instruments 12.5" PI320 Newtonian Reflector Telescope comes with your choice of 2" dual speed or 2.7" photographic (specify) and 8X50 Finderscope. Mount is sold separately.
  • Focal ratio of F/6, yielding a generous image scale while remaining relatively manageable in physical size.
  • The Parallax Instruments 12.5" PI320 Newtonian Reflector Telescope primary mirror cells comes with a cooling fan as standard equipment.
  • Unparalleled optics, very special optimizing techniques, and the highest quality components are employed throughout.
  • Enhanced aluminum coatings for the Parallax Instruments 12.5" PI320 Newtonian Reflector Telescope are available for an additional $170.
  • Customer Note: There is an approximate 4- 6 month lead time and orders require a 50% deposit - price does not include shipping charges. Once your order is placed, OPT will contact you with availability dates and shipping charges.
Description

Details

Parallax Instruments 12.5" PI320 Newtonian Reflector Telescope

Many amateurs have contacted Parallax over the years complaining that their apochromatic refractors, although providing sharp, crisp images, just don't show them the ultra fine detail on Jupiter that they saw through a 12.5" Newtonian at a star party. Parallax Instruments answer to them has been simply that there is no secret here. As Dawes limit suggests, only the larger aperture can resolve the finest filamentary structures on a planetary disc.

The 12.5" PI320 and the 16" PI400 round out Parallax Instruments line of large aperture, high performance telescopes. These research grade instruments, due to their enormous light gathering and resolving power are capable of both deep sky and planetary performance only dreamed of and represent the ultimate in a personal telescope. All models carry a focal ratio of F/6, yielding a generous image scale while remaining relatively manageable in physical size. Unparalleled optics, very special optimizing techniques, and the highest quality components are employed throughout. Enhanced aluminum coatings for the Parallax Instruments 12.5" PI320 Newtonian Reflector Telescope are available for an additional $170. (See "Accessories" tab to the left.)

All optical tubes are finished in high gloss acrylic urethane paint and are furnished with metal snap-lock dust cover and 2" and 1 1/4" focuser adapters. Diagonals or eyepieces are not included. Interferometric test report and fringe analysis data is included with each telescope.

The primary mirror cells of the 12.5" & 16" instruments are provided with a cooling fan as standard equipment. Energizing the cooling fan before an observing session ensures more rapid thermal equalization of the primary mirror to the outside ambient temperature. In fact, Parallax Instruments recommends that the fan be run continuously while observing. The resulting laminar airflow significantly reduces the effects of tube currents early in an observing session.

Although large in aperture, the 12.5" telescope, weighing in at 70 Lbs., may still be handled by one person due to its entirely aluminum construction. The 16" telescope is designed primarily for installation in a personal observatory and is also well suited for schools or universities. Parallax Instruments optional HD200 Equatorial mount is perfectly suited to handle these large telescopes.

Parallax Instruments Product Number: PI320

Customer Note: There is an approximate 4- 6 month lead time and orders require a 50% deposit - price does not include shipping charges. Once your order is placed, OPT will contact you with availability dates and shipping charges. All prices are subject to change without prior notice.
Additional Information

Additional Information

SKU PA-PI320
Manufacturer Parallax
Telescope Series Parallax Newtonian
Optical Design Newtonian Reflector
Mount Type None - Optical Tube Only
Warranty Not Supplied By Manufacturer
Telescope Aperture 12.5"
Telescope Focal Length 1908mm
Telescope Focal Ratio f/6
Optical Coatings Aluminum
Tube Color or Finish Gloss White
Limiting Stellar Magnitude 15
Highest Useful Magnification Not supplied by manufacturer
Optical Tube Outer Diameter 380mm
Optical Tube Weight 70 lbs.
Finder Included 8 x 50 Optical Finder
Total Telescope Weight N/A
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Included Items

Included Items

  • Parallax Instruments 12.5" PI320 Newtonian Reflector Telescope
  • 2" dual speed or 2.7" photographic (specify)
  • 8X50 Finderscope
  • Cooling Fan
  • 2/1.25" Focuser Adapter
  • Dust Cover
Questions & Answers

Product Questions

Why have not you supplied the magnification range?
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