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Takahashi Mewlon CRS - Where's the corrector "plate"?

Started by cosjwt, 08/29/2022 02:58AM
Posted 08/29/2022 02:58AM Opening Post
In the promo materials for the Mewlon 250CRS and 300CRS we see the following...

Takahashi’s CRS series of Mewlon telescopes leads the industry in advanced design and optical quality.  At their heart is the Dall-Kirkham Cassegrain telescope design, coupled with a corrector that provides Ritchey–Chrétien like performance.  With the CRS series, Takahashi has added a 3-element corrector plate made from ED glass, converting the telescope to a flat field instrument for imaging and visual observation.

Emphasis added.

The photos are always of an angle to not show much of the optical train.


  • How big is this corrector "plate?"
  • Where is the corrector "plate" in the optical path?
  • Many thanks for any enlightenment.