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Teleskop Austria Logo
LACERTA GmbH | Wien | Linz
 

Takahashi TOE 3,3mm eyepiece
(Takahashi: TOE3)


389.00 EUR
(Gross prices are calculated with 19% or 7% VAT. If your country-specific VAT is higher, we take over LACERTA GmbH the additional tax costs)
plus shipping
 




     
Brandname:  Takahashi
Focus: 3,3mm
Field: 52°
Element: 6
Shipping weight:  1kg (Shipping costs)

Availability
(The stock is for information only and includes items that have already been reserved)
Wien: pre-ordering availble
Linz: pre-ordering availble
Warehouse: pre-ordering availble
Opening hours

Seen cheaper weiter...
We recommend:
TOE2
389.00 EUR
 
TOE4
389.00 EUR
 
bagOkular7
32.90 EUR
 
CleanSetLa
19.90 EUR
 

The best observation is achieved by combining an excellent optical tube, with performance close to the diffraction limit, with an excellent eyepiece. This combination optimises the resolution of the instrument over the entire field of view. The Takahashi TOE eyepieces were designed with this objective in mind. Whether on Takahashi telescopes or on those of other prestigious brands, they allow the objectives of the various optical tubes to express their full potential, particularly in terms of resolution. They thus demonstrate that telescopes such as the TOA, TSA, FOA and FSQ, or telescopes such as the Mewlon-CRS are not only photographic instruments but also formidable tools for visual observation.

Takahashi TOE eyepieces have been designed for high magnification observation of the Moon and the planets with optimal comfort. On the TOA-130 telescope, 4 mm, 3.3 mm and 2.5 mm eyepieces are used to achieve magnifications of 250x, 300x and 400x respectively. On the FSQ refractor at F/5, it is strongly recommended to use an extender to change to F/8 in combination with TOE. The apparent field of view of the TOE is 52°, wider than the 40° of the old Hi-LE eyepiece, and the eye relief is identical to that of other Takahashi eyepieces such as the LE-5 or LE-7.5, making planetary observation particularly comfortable.

Optical aberrations in eyepieces are difficult to assess theoretically. Therefore, at Takahashi, the optical characteristics of the eyepieces are calculated, and the aberrations minimised, on the assumption that the eyepiece is a complete optical system mounted in afocal at the focus of the TOA-130 refractor. From an undulatory point of view, the Strehl ratio does not fall below 98%, whatever the wavelength considered (from 486 nm to 656 nm) and over the whole field. From a geometric point of view, the spot-diagram shows that the resolution is clearly below the Dawes limit calculated for the TOA-130 lens. Finally, it should be noted that the residual chromatic aberration is extremely low.

The optical design of the TOE eyepieces consists of 6 lenses divided into 4 groups. The Smyth lens of the first group and the main lens of the last group have been optimised to minimise spherical aberration, chromatic aberration, field curvature and astigmatism. Ghost images and reflections have been reduced, allowing the Moon and planets to be observed with high contrast. Each optical surface is treated with a full multi-layer, broad-spectrum treatment and an alternative treatment is applied to surfaces where the colour balance needs to be corrected and the contrast improved. Finally, all lens edges and internal metal surfaces are blackened to prevent stray rays.


We recommend:
TOE2 Takahashi TOE 2,5mm eyepiece 389.00 EUR
 
TOE4 Takahashi TOE 4mm eyepiece 389.00 EUR
 
bagOkular7 waist case eyepiece holder (Lacerta) 32.90 EUR
 
CleanSetLa LACERTA Cleaning Set 4 in 1 (Cleaning Fluid, Microfiber Cloth, Cleaning Brush and Air Blower) 19.90 EUR
 

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TOE3 TOE-Series

 KALENDARIUM
INFO!
Code: MGEN-3 | The delivery situation is still stable:
All required components are currently in stock in our central warehouse.
New orders will be completed in about 2-3 working days after receipt of payment.

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INFO!
Code: FN2008c-new | The delivery situation has improved:
Delivery time for new orders: ca. 120 days
Payments are requested ASAP after our finalization and test notification!

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INFO!
Code: FN25010c-new | The delivery situation has improved:
Delivery time for new orders: ca. 120 days
Payments are requested ASAP after our notification that the FN is finished and tested!

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INFO!
Darkfieldmicroscopes We configure your dark field microscope according to your wishes.
New orders will be completed in about 2 months after receipt of payment.

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2024-04-05
TELESCOPIC EVENING

Together we will explore the world of telescopes and start from “zero” for beginners. We show the basics of how a telescope actually works, what differences there are and combine this with hands-on practice.
Everyone is welcome to bring their own instrument and get to know it better with our telescope experts, including Gerhard Rehak.

more infos


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