APO140FL F/7
APO140FL F/7– TEC’s most popular telescope. It fits everyone’s needs. This Telescope is light weight, portable, and is optimal for visual and CCD imaging. It is one of the best telescopes for its size on the market.
| Item#: | APO140FL F/7 |
Description
Owing homage to one of TEC’s earliest designs, the APO140ED, the APO140FL F/7 debuted in 2017 and has quickly become TEC’s most popular model.
The APO140FL F/7 features an oil-spaced apochromatic-triplet objective with a Fluorite (CaF2) middle element, resulting in color correction that is optimized for visual use and imaging. This oil-spaced triplet design, in combination with multi-layer coatings on all surfaces of the objective, ensures maximal light transmission.
The objective is housed in an aluminum 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. And 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 from this compact and timeless design.
Each APO140FL F/7 comes equipped with:
- A Starlight Instruments FTF#3545 Feather Touch Focuser, designed in collaboration with TEC.
- Starlight Instruments’ largest rotating focuser with coarse and fine focusing (9:1 Planetary Reduction Assembly).
- A 2” locking metal collet that is insensitive to temperature fluctuations and holds loads with high precision and concentricity.
The APO140FL F/7 can be fitted with other focuser models upon request. Please contact TEC to confirm compatibility.
In classic refractor fashion, the TEC APO140FL F/7 is a no-compromise, no-frills design that lets the wonders of nature speak for themselves.
Price: $7,800 (including an initial $1,600 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. Rest assured that we are working diligently to complete and ship every telescope on order.
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. Contact us with any questions or concerns.
Specifications
| Clear aperture | 140mm |
| Focal Length | 980mm |
| Focal Ratio | 7.0 |
| Resolution (Theoretical) | 0.8 arc sec |
| Dew Shield Diameter | 5.9″ / 176mm |
| Tube Diameter | 5.9″ / 150mm |
| Tube Length (Retracted) | 33″ / 840mm |
| Tube Length (Dew Shield Extended) | 40″ / 1050mm |
| Length Incl. Focuser Fully Extended | +3.5″ / 114mm |
| Length in Working Position with the Focuser in Middle of Focusing Range | 43″ / 1090mm |
| Dist. From Focuser End to Focal Plane (Back Focus) | 7.9″ / 200mm |
| Center of Gravity from the Middle of the Focusing Knob 2.5 lbs / 1 kg load | 14″ / 352mm |
| Center of Gravity from the Middle of the Focuser (Telescope Retracted) | 16″ / 406mm |
| Telescope weight | 18 lbs / 8.2kg |
| Weight Incl. Rings, Plate, Handle, Finder | 21 lbs / 9.5kg |
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. Rest assured that your telescope has been optimized to be as optically perfect as possible. If the objective does not reach 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 interferomerical 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.
Manuals & Diagrams
2009 & 2013 TEC APO140 User Manuals Available for Download
Click here to download the APO 140 Telescope Manual (2013 Edition)
Click here to download the APO 140 Instruction Manual (2009, Revision 2)
Product Sketches Available for Download
Click here to download APO140FL F7 COG
Click here to download APO140FL F7 Dimensions
Focuser Instructions Available for Download
Availability
May 1st, 2025: We currently estimate new APO140FL F/7 orders to be delivered by Winter 2025 or Spring 2026.
Mount Recommendations
- 10Micron GM1000HPS and AZ1000HPS Mounts
- Astro-Physics Mach2GTO
- Track the Stars 160 Panther Mount
Recommended Accessories
- Precision adjustable Tube Rings
- 9” Dovetail Plate and Carry Handle facilitate easy transportation and fit seamlessly with most mounts.
- 12" Dovetail Plate and Carry Handle are perfect for astro-imaging and easy handling.
- Focal Reducer Corrector converts the F/7 Ratio to F/6.2 with a 115mm back focus.
- TEC Transportation Case that eases transport between observation locations.
- TEC Compact Case for easy lifting and transportation.
- 10×60 Baader Vario Finderscope with a TEC Finder Bracket and Base for Telescope mounting.
- 7×50 Vixen Finderscope with a TEC Finder Bracket and Base for Telescope mounting.
- Gutekunst Compact Atmospheric Dispersion Corrector (ADC) and adapter set for horizon planetary observation.
Details
| Product Type | Digital |
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| Item# | APO140FL F/7 |
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