This Questar straight-through viewing roof prism image erector is designed to use 1.25" Questar thread-in eyepieces only
on Questar 3.5" Maksutov-Cassegrain telescopes. It is fully coated for high light transmission. It is connected to the Cassegrain focus at the rear of the Questar telescopes by means of swivel coupling #13071 (not supplied). Swivel coupling #13071 is part of the #1393 Questar camera coupling set, but is available separately to use with this image erector if you do not want to use the coupling in the camera adapter. When the image erector is used, the Questar’s built-in Barlow lens will not function, as it is no longer in the straight-through optical path.
Shipping is free on this Questar item if it is purchased with a Questar scope that is being drop-shipped to you from the Questar factory. If this item is being purchased by itself as a special order item, a $12.95 freight charge and a 14-day or longer delivery time will apply. The $12.95 freight and a $20 Questar drop-ship charge will apply if faster delivery is required and it must be drop-shipped to you from Questar.
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