Takahashi Mewlon M-300CRS Reflector OTA


Available on backorder

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.  In addition, the CRS series has an electronic focusing system controllable with an ASCOM driver or in an autofocus mode.  Each CRS telescope features a primary mirror cooled by 3 fans.

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Mewlon-300 CRS

The Mewlon-300 CRS is a 300 mm aperture telescope in an f/9.9, 2960 mm instrument.  With the optional reducer, the Mewlon-300 CRS can be converted to an f/7.2 telescope. The Mewlon 300 does not include a finder.  The 7×50 finder and bracket must be purchased seperately.

Telescope Specifications

Mewlon-250CRS System Chart

Mewlon-250CRS System Chart with 1.5X Extender

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  • Takahashi Mewlon 300CRS Corrected Dall Kirkham Telescope OTA
  • Hand Control for Manual Focusing
  • 12V AC Power Supply

Model Number


Telescope Series

Takahashi Mewlon

Focal Ratio


Optical Design

Corrected Dall-Kirkham

Telescope Aperture

300mm (11.81″)

Telescope Mount Type

No Mount – OTA Only

Type of Electronics

OTA Only – No Electronics

Focal Length (mm)


Optical Coatings

Aluminum with Overcoating and Fully Multi-Coated lenses

Image Circle

40 mm

Focuser Style

Internal Moving Secondary

Focuser Size

Internal Focuser with 2″ Rear Cell Adapter

Focuser Speed

Single Speed

Telescope OTA Outside Diameter (in.)

12.8 (324 mm)

Telescope OTA Length (in.)

41.14 (1045 mm)

Telescope OTA Weight (lb.)

59.4 (27 kg)


Takahashi 5 Years Optics/Mechanical, 1 Year Electronics