WandererAstro FETA M92 - Motorized Focus and Tilt Correction
Replacement kit WFETA92-E180A required; check the draft and installation.
CHF 1'149.00
Designed for photographing nebulae and wide-field star fields, the Takahashi Epsilon-180ED combines a 180 mm aperture with a focal length of 500 mm at f/2.8. Its built-in ED corrector provides a corrected image circle of 44 mm. Optical tube only version: TEK18010.
CHF 4'131.33incl. Swiss VAT
Part Number TEK18010
The Epsilon-180ED combines a 180-mm aperture with a 500-mm focal length and an f/2.8 aperture ratio. This modified hyperbolic Newtonian telescope is designed for imaging large stellar fields and nebulae. Its f/2.8 aperture is well-suited for photographing diffuse objects and vast stellar fields. The model number TEK18010 refers to the optical tube only version.
The hyperbolic primary mirror works with a flat secondary mirror and a two-lens ED glass corrector integrated into the rack. The 44-mm corrected image circle covers the 24 × 36-mm format. To mount the camera, assemble the photographic train according to the 56.2 mm backfocus specified by Takahashi and the corrector’s interfaces. The focusing system includes a rotating collar for adjusting the photographic framing.
Markings on both mirrors are used to adjust the collimation. The collimation procedure can be performed during the day using the tube and the Takahashi collimation eyepiece, which are sold separately. The tube is 570 mm long and 232 mm in diameter; its listed weight is 10.7 kg. Be sure to use a mount and mounting bracket suitable for this weight, plus the clamps and photographic train.
Takahashi Epsilon-180ED optical tube only, part number TEK18010, with its built-in ED corrector. The mount, finder scope, mounting clamps, photographic adapters, and collimation tools must be selected separately based on your setup.
Manufacturer's part number: TEK18010. Takahashi's Official Profile.
With an 180-mm aperture at f/2.8 and a 500-mm focal length, it is primarily an astrophotography instrument: when paired with a camera, it is designed to photograph large nebulae, the Milky Way, and massive clusters across a very wide field of view.
It can still be transported by car: the tube weighs about 10.7 kg and is about 57 cm long.
Yes, just like any wide-aperture Newtonian—and with precision, because astrophotography at f/2.8 leaves little room for error. Takahashi offers the Takahashi TKA00442 collimation tube.
Yes, that's what it's designed for: it mounts on a motorized equatorial mount (not included) with an astro camera or a regular camera. With an aperture of f/2.8, it gathers light very quickly, so exposure times remain short. With a tube weighing approximately 10.7 kg (without accessories), choose a mount with a load capacity that leaves some margin.
Here are a few accessories we've selected for this model, depending on your needs.
Replacement kit WFETA92-E180A required; check the draft and installation.
Takahashi 232WS mounts for the Epsilon-180ED, with an extension plate; the lower mounting bracket must be provided separately. An alternative to the 232WM, depending on your setup.
Takahashi 232WM mounts for the Epsilon-180ED, with an extension plate; the lower mount must be provided separately. An alternative to the 232WS, depending on your setup.
Takahashi 1.5× extender designed for the Epsilon-180ED to provide a tighter field of view. It replaces the original corrector; check the connections, the focus adjustment, and compatibility with your FETA focuser, if installed.
Motorized eyepiece holder that replaces the original one; an alternative to the FETA on the Takahashi rack. You will need the Epsilon-180ED PL8410112 adapter; check the mount, the corrector, and the camera back focus.
Recommended diameter: 280 mm. Check the mounting, alignment, clearance, power supply, and control system.
Recommended diameter: 350 mm. Check the measurement and the mounting.
Rotateur Lite V2 is possible; check the connection, the corrector, and the draft.
