TEC 140 f/7 Triplet Refracting OTA Telescope

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TEC 140 f/7 Triplet Refracting OTA Telescope

TEC 140MM f/7 APO ED Refractor Telescope is a beautiful telescope at a beautiful price point.  Built with precision from one of the industry's most trusted names in quality, TEC's APO140FL gives you more apochromatic aperture for your money than most any other premium telescope maker.  If you are looking for the very best in apochromatic refractors, look no further than Telescope Engineering Company.

Telescope Engineering Company (TEC) began in 1994 as a distributor/subcontractor of optics and optical materials. Initially, their primary products were zero-expansion Sitall blanks from LZOS, large mirrors and optical systems from LOMO, and optics for Maksutov telescopes made in Kiev, Ukraine.

In the late 90's, TEC decided to start its own production line of optics and telescopes. TEC began by producing a line of Maksutov telescopes ranging from 6" to 10" diameter and continued to work on special optics for professional observatories. At the turn of the century, TEC began working on a new product: apochromatic refractors. In 2002 they started regular production of smaller refractors, beginning with the APO140 F7 ED. Later on, TEC added larger models including the APO160, APO180 and APO200. Apochromatic refractors make up the majority of TEC's ongoing present and near future production.

The TEC APO140FL is TEC's most affordable and most portable telescope. It is a top-notch performer, working well both as a visual scope and as an astrophotography instrument.  


Aperture140 mm (5.5")
Dawes Limit0.83 arcseconds
Focal Length980 mm
Focal Ratiof/7
Hightest Magnification280x
Light Gathering Power400x
Limiting Magnitude14.5
Optical DesignTriplet
Tube Diameter150mm
Tube Length864mm
Tube Weight19 lbs


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