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1.25" mirror diagonal for Brandon eyepieces on a 3.5" Questar
$335.00This Questar #19107 star diagonal is designed for axial viewing with 3.5" Questar telescopes only . . .
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Questar 2" Quartz silver mirror for 7" Questars
$895.00This 2" Questar star diagonal allows the use of 2" eyepieces with the 7" Questar Maksutov. Its 1/20th wave first surface quartz mirror has silver mirror coatings for optimum light transmission and contrast.