TEC-VT 300mm 7 degree Wide-field Houghton-Terebizh Telescope | PixelSkiesAstro
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  • TEC-VT 300mm 7 degree Wide-field Houghton-Terebizh Telescope | PixelSkiesAstro
  • TEC-VT 300mm 7 degree Wide-field Houghton-Terebizh Telescope | PixelSkiesAstro
  • TEC-VT 300mm 7 degree Wide-field Houghton-Terebizh Telescope | PixelSkiesAstro
  • TEC-VT 300mm 7 degree Wide-field Houghton-Terebizh Telescope | PixelSkiesAstro
  • TEC-VT 300mm 7 degree Wide-field Houghton-Terebizh Telescope | PixelSkiesAstro

TEC-VT 300mm 7 degree Wide-field Houghton-Terebizh Telescope

TEC300VT-7DEG survey astrograph This wide-field imaging instrument combines titanium lens cells, an Invar structure and camera-plane tilt adjustment. The original TEC datasheet documents its optical and mechanical design.

Manufacturer model: TEC300VT-7DEG · Specifications checked against manufacturer data on 2026-11-04

TEC300VT-7DEG survey astrograph

This wide-field imaging instrument combines titanium lens cells, an Invar structure and camera-plane tilt adjustment. The original TEC datasheet documents its optical and mechanical design.

Configuration

Camera examples and calculated survey scenarios do not establish supplied equipment. Consult the original drawing for the sensor reference surface.

Original TEC manufacturer datasheet

Compatibility notes

Optical design credited to Valery Terebizh; mechanics and optics to Yuri Petrunin, TEC. The stated 40 kg includes an FLI camera, not a bare OTA. Sensor distance is measured from the final lens surface. Current configuration and availability are not established.

Additional specifications

Entrance pupil300 mm
Effective focal length425 mm
Published working ratiof/1.44
Image scale2.06 µm/arcsec
Spectral range0.42–0.84 µm
Angular field7°
Field shapeFlat
Field diameter52.1 mm
Unvignetted fraction axis edge0.70 / 0.57
Effective aperture axis edge250 / 227 mm
Sensor distance70 mm from last lens surface
Rms spot axis edge2.3 / 3.8 µm
D80 axis edge5.5 / 7.1 µm
DistortionBelow 0.20%
Ghosting design statementNone reported
Optical length first last373 mm
Optical length first sensor443 mm
Mass with fli cameraApproximately 40 kg
Assembly length1030 mm
Cell materialAthermal titanium
Support structureInvar rods
Camera tilt adjustment0.25°
Reference detectorsFLI PL16803 / PL09000
1351140

Data sheet

Model
TEC300VT-7DEG
Optical design
Terebizh catadioptric; VT99c

Download

Original TEC manufacturer datash

Original TEC manufacturer datasheet

Download (963.53KB)
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