Telescope Engineering Company
APO250VT F/8.8
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APO140FL F/7
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APO250VT F/8.8
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TEC-VT 300mm / 7deg Widefield Houghton-Terebizh Telescope - TEC - Telescopes
OWNER'S MANUAL 2006 - Telescope Engineering Company
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TEC-VT 300mm / 7deg Widefield Houghton-Terebizh Telescope - TEC - Telescopes
Telescope Engineering Company
Teleskope – Sternwarte Hubelmatt
