Takahashi

Takahashi Mewlon-180C

Name: Takahashi Mewlon-180C
Brand: Takahashi
Price: 2110 USD
Availability: InStock

A 180mm Dall-Kirkham from Takahashi, a compact planetary specialist whose obstruction-optimized optics deliver refractor-like contrast at reflector aperture and price.

88/ 100

Polaris Score

#2 of 4 premium planetary reflector

See the breakdown ↓

Aperture

180mm

Focal Length

2160mm

Focal Ratio

f/12

Mount Type

None (OTA only)

Optical Design

Dall-Kirkham Cassegrain

Weight

7.3 kg

From$2,110

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Where to buy

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What it's built forOpen these in the simulator →

This telescope lives for the planets.

An f/12 focal length built to magnify. Where fast scopes sweep wide, this one holds a single planet rock-steady at high power — a telescope for the patient observer on a steady night.

Sweet spot 140–230×Loves steady seeing

The view people remember

Jupiter and its four moons.

Cloud belts stripe the disk and the Galilean moons shift positions night to night — on a steady evening the Great Red Spot rotates into view.

See Jupiter through this telescope →

Where else it shines

Also excellent on

Saturn

Atmospheric bands or polar caps visible depending on the planet

Open view →

Never gets old

The Moon

Crisp crater rims and fine surface texture, ridges visible inside maria

Open view →

Within reach

Orion Nebula

Stronger structure — embedded stars plus dark lanes within the core

Open view →

Easy first target

The Pleiades

Rich field — fainter members fill out the cluster

Open view →

✦

Wide-field nebulae belong to another kind of telescope. This one trades width for reach.

01What it's good at

What it's best at — and the trade-offs.

The Dall-Kirkham design and Takahashi figuring give exceptionally high planetary contrast for a reflector

Best at

✓The Dall-Kirkham design and Takahashi figuring give exceptionally high planetary contrast for a reflector

✓180mm at f/12 reaches very high magnification with the light grasp to show fine planetary and lunar detail

✓As an open-tube reflector it cools faster than a sealed Maksutov of similar aperture

✓It is noticeably lighter and more transportable than the larger Mewlon-210

Trade-offs

!The long focal ratio makes it a planetary and lunar specialist, not a deep-sky scope

!It is an OTA only and needs a solid mount

!The open tube and secondary need occasional collimation

!At f/12 and 2160mm the field is very narrow

02In plain English

What These Numbers Mean

180mm · f/12 · 2160mm FL

Aperture

180 mm (7 inch)

Seven inches of aperture gathers about 660 times the light of your eye and has the resolving power to separate very close double stars. In this design the emphasis is on image sharpness at high power rather than on deep-sky light grasp.

Focal length

2160 mm

Long. It reaches 432x with a 5 mm eyepiece, which the optics can genuinely support when the atmosphere allows. The narrow field means wide deep-sky sweeping is not what this scope is for.

Focal ratio

f/12

Slow, which is what produces the high-contrast planetary images and makes eyepieces easy to match. Deep-sky imaging is impractical without a reducer, and even then the exposure times are long.

Optical design

Dall-Kirkham Cassegrain

An elliptical primary and spherical secondary give exceptionally clean on-axis images with no colour error, which is why Mewlons are prized by planetary observers. The trade-off is a narrow well corrected field, so it favours the centre of the view.

Weight

7.3 kg tube

About 16 lb in a compact tube, an easy one-person lift. Its short length also means less leverage on the mount than a refractor of similar mass.

Cooldown

45 to 60 minutes

The open tube design cools faster than a sealed Maksutov of the same aperture, but the mirror still needs time before fine planetary detail settles. Setting up early is the difference between a good night and a soft one.

03The Polaris Score

How it scores, and why.

88/100 · #2 of 4 premium planetary reflector

88/ 100

Takahashi Mewlon-180C

#2 of 4 premium planetary reflector

Performance

Ease of use

Portability

Upgrade potential

Polaris weighs optical capability, how easy the scope is to live with, how portable it is, and how far it takes you before you outgrow it — not list price or brand.

04Who it's for