Questar
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Questar achromatic 0.44x focal reducer
$525.00This Questar 0.44x achromatic focal reducer gives you faster photographic speeds with both 3.5" and 7" Questars.
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Questar achromatic 0.6x focal reducer
$525.00This Questar 0.6x achromatic focal reducer gives you faster photographic speeds with both 3.5" and 7" Questars.
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Questar achromatic 0.7x focal reducer
$525.00This Questar 0.7x achromatic focal reducer gives you faster photographic speeds with both 3.5" and 7" Questars.