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TS-Optics RC 0.8x Corrector Reducer for Ritchey Chretien - big sensors - M68 connection

TSRCRED
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The corrector and focal reducer is designed especially for Ritchey-Chrétien telescopes and shortens the focal length while correcting the image field at the same time.

€899.00
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Description

In Short:

  • Connection at telescope side: M68x1 thread (female)
  • Connection at camera side: M68x1 thread (male)
  • Diameter 74 mm - the corrector can be sunken into 3" focusers
  • Working distance from the male M68x1 thread: 82 mm
  • The focal length is shortened by the factor 0.8x and the speed is increased correspondingly.
  • In addition, the corrector eliminates the field aberrations of f/8 RC telescopes, it works with all f/8 RC telescopes, for example TS-Optics, AstroTec, CFF, Officina Stellare, ...

TS-Optics Focal Reducer and Field Corrector for Ritchey-Chrétien Telescopes

Teleskop-Service offer complete correction of the image field of RC telescopes with reduction of the focal length to 80% at the same time. Pure telecompressors, like the CCDT67 from Astro Physics, reduce the focal length without correcting the image field. The result is an aberration (astigmatism) in the corners. The larger the sensor, the more pronounced the aberration.

The TSRCRED is designed especially for the image field of f/8 RC telescopes, thus it eliminates the aberrations entirely. The results are sharper, pinpoint stars and easier focusing.

This reducer is also the only one for full frame size sensors that can be used on our TS RCs from 10" with the large focusers, for example such as TSFOCR30S.

Adapting the TSRCRED to the telescope:

You have two possibilities of adapting to the RC telescope. You can thread the corrector to the focuser or countersink it into the drawtube if you have less than 135 mm working distance.

Adaption via the female M68x1 thread at the telescope side:
Via suitable adapters, you can attach the corrector to any focusers from 2.5" upwards. You just have to provide the focuser with a male M68x1 thread at the camera side. Please note that you need at least 135 mm working distance from the male thread.

Adaption with countersinking the corrector into the drawtube at the same time:
If there is less backfocus, we recommend countersinking the corrector into the drawtube. Thus the necessary backfocus is reduced to less than 100 mm. We are pleased to offer you suitable adapters. For focusers with the female M78x1 thread, like the TSFOCR30S, we already have the suitable adapter with the item number # M78a-M68a in our product range (see recommended accessories).

Adapting the camera to the TSRCRED:

The working distance from the male M68x1 thread at the camera side is 82 mm (from the contact surface at the reducer-side end of the M68 male thread; the thread length is therefore not taken into account), thus you have enough space for individual adaptions or accessories like off-axis guiders. The male thread is not taken into account for the working distance, as it disappears into the connection adapter.

Features:

  • Type:    Corrector and reducer for RC telescopes
  • Focal length factor:    0.8x
  • Thread at telescope side:    M68x1 thread (female) - length 6 mm
  • Thread at the camera side:    M68x1 thread (male) - length 5 mm
  • Diameter:    74 mm
  • Height:    34 mm
  • Number of elements:    3 elements
  • Coating:    Multi-coated (anti-reflective)
  • Working distance:    82 mm (from the contact surface at the reducer-side end of the M68 male thread; the thread length is therefore not taken into account)
Product Details
TSRCRED

Data sheet

Connexion coté télescope
Filetage M68
Connexion coté caméra
Filetage M68
Pleine illumination
Full Frame supporté
coefficient de réduction
0.8x
Backfocus
82mm du début du filetage M68 (bord du correcteur)
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AsiAir compatible ZWO cable for 2 heating resistors RCA connectors

TS-Optics RC 0.8x Corrector Reducer for Ritchey Chretien - big sensors - M68 connection

The corrector and focal reducer is designed especially for Ritchey-Chrétien telescopes and shortens the focal length while correcting the image field at the same time.

Write your review
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