Takahashi Epsilon-160ED — image 1
Takahashi

Takahashi Epsilon-160ED

A 160mm f/3.3 hyperbolic Newtonian astrograph, one of the fastest large imaging systems made, Takahashi optics that gather light at extraordinary speed for deep, wide exposures.

92/ 100
Polaris Score
#1 of 4 fast imaging astrograph
See the breakdown ↓
Aperture
160mm
Focal Length
530mm
Focal Ratio
f/3.3
Mount Type
None (OTA only)
Optical Design
Hyperbolic Astrograph
Weight
9.5 kg
From$3,950

Lowest in 90 daysLowest ever tracked

Price tracked by PolarisObserved 91 timesTracking since Jul 2026

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Where to buy

Verified 13h ago · prices tracked daily

What it's built forOpen these in the simulator →

This telescope was built for the camera.

A fast f/3.3 astrograph designed to throw a wide, flat, well-corrected field onto a sensor. It is an optical tube first — give it a tracking mount and a camera and it rewards long exposures, not eyepieces.

f/3.3 — built to imageNeeds a tracking mount
The view people remember

The Whirlpool, and its companion.

A face-on spiral with a smaller galaxy caught at the end of one arm — on a dark night the spiral structure lifts off the sky in a way photographs almost prepare you for.

See Whirlpool Galaxy through this telescope →
01What it's good at

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

At f/3.3 it collects light roughly nine times faster than an f/10 system, revealing faint nebulosity in short exposures
Best at
✓At f/3.3 it collects light roughly nine times faster than an f/10 system, revealing faint nebulosity in short exposures
✓160mm of aperture with a corrected hyperbolic mirror gives pinpoint stars across a large imaging field
✓530mm frames big nebulae and galaxy fields while the speed keeps total exposure times low
✓Takahashi build and figuring deliver the mechanical precision that a fast Newtonian demands
Trade-offs
!f/3.3 is extremely unforgiving of collimation, tilt and back-focus error
!At 9.5kg it needs a heavy, accurate mount
!As an OTA it needs a mount, camera, coma-free corrector and guiding to work
!The fast optics reward only careful, experienced technique
02In plain English

What These Numbers Mean

160mm · f/3.3 · 530mm FL
Aperture
160 mm
Six and a quarter inches of aperture feeding a camera at a very fast ratio. The combination is what allows faint nebulosity and galaxy outskirts to appear in short total integration times that a small refractor could not approach.
Focal length
530 mm
Wide field with large aperture behind it, an unusual pairing. It frames big emission nebulae and extended galaxies while still delivering enough resolution to hold up under close inspection.
Focal ratio
f/3.3
Extremely fast. It collects light roughly nine times faster per pixel than an f/10 system, so exposures are short and projects finish in nights rather than months. The tolerances are correspondingly brutal: focus, tilt and collimation all have to be right.
Optical design
Hyperbolic astrograph with corrector
A hyperbolic primary with a dedicated corrector produces a flat, coma-free field at f/3.3, which an ordinary fast Newtonian cannot. It is a pure imaging instrument: there is no practical visual use, and it rewards a careful, experienced operator.
Weight
9.5 kg tube
About 21 lb before camera and accessories. Manageable for one person, but the open tube and front corrector mean handling it deserves more care than the weight suggests.
Mount
OTA only
No mount included. At f/3.3 the optics will out-resolve a mediocre mount immediately, so pair it with a well tuned equatorial in the 20 kg class and reliable guiding.
03The Polaris Score

How it scores, and why.

92/100 · #1 of 4 fast imaging astrograph
92/ 100
Takahashi Epsilon-160ED
#1 of 4 fast imaging astrograph
Performance
96
Ease of use
60
Portability
55
Upgrade potential
80

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

An honest fit check.

Experienced imagers who want maximum speed and aperture for wide fields
Buy it if you
✓Experienced imagers who want maximum speed and aperture for wide fields
✓People chasing faint nebulosity that fast optics reveal quickly
✓Imagers with a substantial mount and careful collimation habits
Look elsewhere if you
!Beginners, since fast Newtonian astrographs are demanding to collimate and correct
!Visual observers, since this is a pure imaging instrument
!Anyone without a heavy mount and a precise imaging workflow
05Build your rig

What to buy next — and where it leads.

6 pieces of gear, ordered by what changes the view most
Recommended upgrades
No fogging on long sessions★ Top pickPegasus Astro Multi-Channel Dew Controller

Keeps the optics clear across a full imaging night

Make nebulae popOptolong OIII Filter 2″

Isolates emission nebulae for high-contrast fast imaging under light pollution

Observe all night, no AA batteriesCelestron PowerTank Lithium

Runs the mount, camera and dew heater away from mains power

Imaging path
Portable astrophotographyZWO AM5N Harmonic Equatorial Mount✓ Compatible

Start capturing images of the Moon and planets

Permanent-setup astrophotographySky-Watcher EQ6-R Pro✓ Compatible

Commonly paired with this telescope

Start imagingZWO ASI2600MC Pro

Start capturing images of the Moon and planets

Wide-field deep-sky imaging
Excellent, flat field
Lunar & planetary
Small image scale
Visual use
Possible, but an imaging tube
06The numbers

Full specifications.

6 measured and stated values
Optics
Optical DesignHyperbolic Astrograph
Aperture160mm
Focal Length530mm
Focal Ratiof/3.3
Mount & drive
Mount TypeNone (OTA only)
Physical
Weight9.5 kg