TAKAHASHI CORRECTED MEWLON-300CRS

TAKAHASHI SKU: TLK30310

$15,450.00

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       Takahashi's Mewlon series reflectors are long focal length telescopes with high F/D focal ratio. The primary mirror is ellipsoidal while the secondary mirror is spherical. The surface accuracy of the optics is at least λ/20.

       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.  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.

       The CRS models incorporate a field corrector with ED glass lenses that provides a focal ratio of F/10 along with a larger, better corrected field converting the telescope to a flat field instrument for imaging and visual observation.  The motorized focusing, ASCOM compatible, is done by translating the secondary mirror. The fans responsible for heating the primary mirror are managed by 3 temperature sensors located inside and outside the tube.

       The Mewlon-300CRS is perfectly suited for planetary observation and imaging, due to its long focal length. It is also ideal for deep sky applications; equipped with the F/7.2 reducer it will allow the imaging of compact objects such as planetary nebulae or galaxies.

The Mewlon 300CRS is delivered with 7x50 finder scope and with a pair of tube-rings connected by a bridge plate located at the top of the OTA.

 

CHARACTERISTIC TAKAHASHI MEWLON-300CRS REFLECTOR
Optical design Modified Dall-Kirkham
Combination Concave elliptical primary mirror + convex spherical secondary mirror + field corrector
Diameter 300 mm
AT PRIME FOCUS
Focal length 2960 mm
Focal ratio F/99
Image circle diameter 40 mm
Metal Back Distance 189.5 mm
WITH RD CR0.73X FOCAL REDUCER
Focal length 2160 mm
Focal ratio F/7.2
Image circle diameter 35 mm
Metal Back Distance 72.2 mm
WITH EX CR1.5X FOCAL EXTENDER
Focal length 4475 mm
Focal ratio F/14.9
Image circle diameter 44 mm
Metal Back Distance 117.5 mm
CHARACTERISTIC TAKAHASHI MEWLON-300CRS REFLECTOR
Length of the optical tube assembly 1140 mm
Diameter of the optical tube assembly 324 mm
Weight 27 kg

Spot-diagram of Takahashi Mewlon-300CRS reflector at prime focus

Spot-diagram of Takahashi Mewlon-300CRS reflector with RD CR0.73X focal reducer

 

Please note: mount, tripod, tube holder and finder sold separately.

 

Included in the box:

Optical Tube Assembly

M90-72 Coupling TKP83111

50.8 (2") Sleeve TKP00113

Coupling (S) TKP00103

Aux. Ring (prime focus) TKP83002

Ocular adapter (31.7) TKP00101

Ocular adapter (50.8) TKP27110

Extension tube (50.8) TKP31112

 

System Charts

Mewlon-300CRS System Chart

Mewlon-300CRS System Chart with 1.5X Extender