APO250 is coming back
The legendary TEC refractor, known for its 10-inch triplet fluorite optics and observatory-class performance, is making headlines again, APO250 is coming back, offering serious astronomers unmatched clarity, color correction, and visual excellence.
This picture was taken 9 years ago, I can still handle the ‘beast’ and we are bringing it back to production!
We’re excited to announce that the legendary TEC APO250VT F/8.8 is returning to production. This observatory-class instrument has long represented the pinnacle of visual performance in a refractor, and we’re proud to make it available once again.
- Specifications remain unchanged
- New price will be added later
The APO250 is coming back: The beast returns
The TEC APO250VT F/8.8 is our most powerful refractor to date. With a 250 mm clear aperture and a focal length of 2200 mm, it is designed for serious observing and imaging from permanent stations. While portable for experienced users, we recommend a fixed observatory setup due to its size and weight.
- Optics: Air-spaced triplet with Fluorite (CaFâ‚‚) center element
- Color Correction: Optimized for both visual and imaging use
- Build: Titanium lens cell, aluminum tube with anti-reflective coating and baffling
- Focuser: Starlight Instruments FTF#3545, TEC-collaborated 9:1 dual speed
- Included: Precision tube rings, handcrafted construction, no need for collimation
TEC APO250VT F/8.8 specifications
- Clear Aperture: 250 mm (10")
- Focal Length: 2200 mm (86.6")
- Focal Ratio: f/8.8
- Tube Length: 2000 mm (78.7") retracted, 2500 mm (98.4") extended
- Tube Weight: 50 kg (110 lbs)
- Resolution: 0.5" (theoretical)
Mount Recommendations
- 10Micron GM3000 HPS
- 10Micron AZ3000 HPS
- 10Micron GM4000 HPS
- 10Micron AZ4000 HPS
Recommended Accessories
- Adjustable Dovetail Plate and Semirings
- 10×60 Baader Vario Finderscope
- 7×50 Vixen Finderscope
- Gutekunst Compact Atmospheric Dispersion Corrector (ADC)
Stay tuned for price updates and production timelines. If you’re interested in securing one, feel free to contact us to discuss observatory requirements and availability.
TEC's most powerful telescope
About the Author
President
Yuri Petrunin is the Owner & President of Telescope Engineering Company. He previously worked at Chernobyl Nuclear Power Station as an Engineer. Yuri Petrunin attended MEFI & 38 High School.