Takahashi Epsilon 130D Astrograph Reflecting Telescope

Overview & Optics

The Epsilon-130D is a wide-field astrograph (modified hyperbolic Newtonian + corrector) made by Takahashi.
It features a 130 mm aperture, focal length of 430 mm, giving f/3.3 focal ratio, which means it’s quite “fast” (captures light quickly) and good for wide-field deep sky imaging.
The imaging circle (the usable flat field where stars stay sharp at the edges) is about 44 mm in diameter. That supports full-frame sensors without serious edge distortion.

Key Strengths

Feature	Advantage
Wide Field of View (~5.9°)	Great for capturing large nebulae, comets, Milky Way scenery, star fields — you get more sky in each frame.
Fast Optics (f/3.3)	Shorter exposure times needed, which helps with portable setups, less trailing, better color saturation.
Quality of Stars at Edges	Thanks to the corrector and Takahashi’s design, star shapes stay tight and well-formed near edges of the field.
Build / Mechanical Quality	Reasonably compact (tube length ~460 mm, diameter ~166 mm, weight ~4.9 kg), solid rack & pinion focuser, good mirror cell design, strong mounting and “spider” that supports the secondary rigidly.

Cost: Because of premium optics, machining, brand reputation, it’s a high-end instrument; price is significantly higher than “entry” astrographs of similar aperture.
Mount Requirements: To take full advantage, you’ll want a mount with good guiding capability (e.g. accurate tracking), because at f/3.3 and with full-frame sensors, you’ll be more sensitive to tracking / guiding errors.
Weight & Portability: While 4.9 kg is reasonably portable, with all accessories (camera, flattener/corrector, guidescope etc.), the full rig becomes heavier. Not “backpack light” unless pared down.
Focal Length Light Focusing & Collimation: Fast astrographs tend to require more precise collimation / alignment; although Takahashi has made design choices (collimation marks, corrector etc.) to ease this, there’s still a learning curve.

Astrophotographers who want to shoot wide field objects — nebulae, large star clusters, the Milky Way, comets.
Users with full-frame or large sensors who want good image quality even near the edges.
Those who value optical quality, sharp stars, stable mechanical build, and who are willing to invest in good mount / guiding.
Observers who transport gear to dark sky sites but still want performance — the Epsilon-130D is relatively portable for what it delivers.

Specifications

Name	Takahashi - Epsilon 130D Astrograph
Manufacturer	Takahashi
Model	TEK1300
Manufacturer Part No	TEK1300
Aperture	130mm
Focal Length	430mm
Focal Ratio	f/3.3
Image circle	44mm (5.9° field of view)
Optical tube diameter	166mm
Optical Tube Length	460mm

CAD6,779.00

CAD12,489.00

CAD23,419.00

CAD3,199.00

CAD5,499.00

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