APO250VT F/8.8

TEC APO250VT F/8.8 is TEC's most powerful telescope. It is considered an observation class instrument. Weighing in at 50kg, the APO250VT F/8.8 can be transported to various observing stations, however TEC highly recommends that a permanent observing station be made for this telescope. It requires a large mount and specialized accessories; however, it will provide some of the best observing available to the consumer.

$58,00000

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Description

Technical Details

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Description

Our largest refractor, the APO250VT F/8.8 allows the observer to immerse themselves in the beauty of space. This observatory class instrument provides the best visual experience that TEC has to offer.

The APO250VT F/8.8 features an air-spaced apochromatic-triplet objective with a Fluorite (CaF2) middle element, resulting in color correction that is optimized for visual use and imaging.
This air-spaced triplet design, in combination with multi-layer coatings on all surfaces of the objective, ensures maximal light transmission.
The objective is housed in a titanium cell, providing excellent thermoregulation properties while remaining lightweight and strong.
The optical assembly sits in a lightweight aluminum tube that utilizes anti-reflective coating and sharp-edged baffles throughout the interior.
Forget about collimation – after the scope leaves TEC, no adjustment is required.
The crisp all-white assembly projects the elegant, handcrafted quality that TEC is known for.
Expect deep contrast and rich, natural color out of this compact and timeless design.
Each APO250VT F/8.8 comes equipped with a Starlight Instruments FTF#3545 Feather Touch Focuser that was designed in collaboration with TEC.
This is Starlight Instruments’ largest rotating focuser with coarse and fine focusing 9:1 Planetary Reduction Assembly.
The 2" locking metal collet is insensitive to temperature fluctuations and holds loads with high precision and concentricity.
Includes precision adjustable Tube Rings.

In classic refractor fashion, the TEC APO250VT F/8.8 is a no-compromise, no-frills design that lets the wonders of nature speak for themselves.

Price: $56,000 (including an initial $16,000 refundable deposit).

Note: ALL PRICES AND AVAILABILITY ARE SUBJECT TO CHANGE WITHOUT NOTICE. The price initially quoted for a telescope purchase may not be reflected in the final invoice. Wait times may also be longer than initially quoted.

How to place an order with TEC

To place an order, please complete the checkout process directly on our site. After your order is submitted, you will receive a confirmation email with next steps for TEC to take your deposit and begin processing. Your order is added to the production list once the deposit is received, but pricing is not guaranteed. The balance is due upon completion. Accessories and mounts can be requested in the order comments. Prices, availability, and lead times may change without notice. Paypal fees apply. Contact us with any questions or cancellations.

Specifications

Clear Aperture	250 mm (10")
Focal Length	2200 mm
Focal Ratio	8.8
Resolution (Theoretical)	0.5"
Tube Diameter	254 mm
Tube Length (Retracted)	2000 mm
Tube Length (Extended)	2500 mm
Tube Weight	50 kg

Focuser Information

Testing and Quality Assurance

TEC Telescopes go through rigorous testing to ensure top quality performance. Newtonian Rings are used throughout the glass production process and we then use an interferometer to correct any remaining imperfections. Every telescope is then tested vigorously to reach the most optimum Strehl ratio possible. If the objective does not meet Yuri’s expectations, the telescope will not be shipped. As a strict policy, TEC will not release telescope test reports.

While the objectives are fine-tuned under interferometrical control to meet the highest optical standards, cosmetic imperfections may exist in the objective and the tube assembly. Please rest assured that any imperfection in the telescope has been determined not to affect the optical performance.