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Takahashi Mewlon 210 Dall-Kirkham optical tube

Takahashi Mewlon 210 Dall-Kirkham optical tube

You have dreamed of a reflector with exceptional and powerful optics, with a generous diameter and with the guarantee of an incredible contrast: the Takahashi Mewlon is for you!

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Takahashi Mewlon 210 Dall-Kirkham optical tube

Takahashi

TK-TLK21000NR

New product

You have dreamed of a reflector with exceptional and powerful optics, with a generous diameter and with the guarantee of an incredible contrast: the Takahashi Mewlon is for you!

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2 999,00 €

-307,00 €

3 306,00 €

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Takahashi Mewlon 210 Dall-Kirkham optical tube

You have dreamed of a reflector with exceptional and powerful optics, with a generous diameter and with the guarantee of an incredible contrast: the Takahashi Mewlon is for you!

The precision of optical surfaces is at least of λ/20. This standard of quality induces a strong concentration of the light in Airy disc, physical image of a star looked through any optical system. The stellar images are more defined and contrasted. The Mewlon primary mirror, oversized compared to the effective aperture, is installed in a mirror cell especially designed to avoid stresses sometimes generating of astigmatism.

The focuser, often one of the weak points of the current telescopes, was particularly neat. The translating mechanism of the primary mirror of Mewlon 180mm and 210mm is machined with a particular care in the Takahashi workshops in order to reduce the shifting, to obtain a softness and an optimal regularity of focusing. Mewlon 250mm and 300mm are equipped with a the secondary mirror translating focuser, ordered with an electric handbox.
Equipped with a 50.8mm eyepiece holder in standard, you will be able to associate the most appropriate accessory with it, for visual, photographic or CCD use. The complete and coherent range of accessories proposed, will reach any of your goals.

The fixing of Mewlon on equatorial mountings is carried out using functional and effective dovetails. Their design facilitates frequent handling such as balancing or OTA assembly/disassembly without deterioration. Moreover, on Mewlon of large diameters, a counterweight is provided to balance the optical tube.

Mewlon integrates a high quality finder scope, associating luminosity and sharpness. This finder scope can also be used as a handle for transportation, without creating any bending or malfunctioning.

Optical specifications

Spec.Mewlon-210Mewlon-250Mewlon-300
Optical designDall-Kirkham (Cassegrain)
Effective aperture210mm250mm300mm
Primary mirror diameter (focal length)220mm (F/2,9)260mm (F/3)310mm (F/3)
Secondary mirror diameter (amplification)65mm (x4)70mm (x4)95mm (x4)
Secondary obstruction0,320,280,32
Standard
Focal length (at prime focus)2415mm3000mm3572mm
Focal ratio (at prime focus)F/D 11,5F/D 12F/D 11,9
Resolution0,55"0,46"0,40"
Limiting magnitude13,413,814,2
Light grasp900x1275x1836x
Image circle18mm21mm25mm
Back focus210mm210mm210mm
Eyepiece holder(s)50,8mm/31,75mm50,8mm/31,75mm50,8mm/31,75mm
With reducer
Focal length1961mm2307mm2739mm
Focal ratioF/D 9,3F/D 9,2F/D 9,1
Image circle39mm42mm42mm
Photographic field1,2°45'

Mecanical specifications

Mewlon view

Mewlon exploded view

Spec.Mewlon-210Mewlon-250Mewlon-300
Tube length700 mm850 mm1094 mm
Tube diameter244 mm280 mm324 mm
Tube weight8 kg12 kg26 kg

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