Orion Illuminated Polar Scope for Sirius Pro Mount

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Orion Illuminated Polar Scope for Sirius Pro Mount

  • Externally mounted scope allows fast and accurate polar alignment of the Orion Sirius Pro AZ/EQ-G GoTo Mount
  • Provides an easier and faster alternative to software-assisted polar alignment routines
  • Attaches easily without tools
  • Adjustable illuminator brightness makes crosshairs easy to see at night
  • Dual-hemisphere reticle for convenient worldwide use


Weight10.7 oz.
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5.0 Based on 1 Reviews
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jack t.
sirius pro polar alignment scope

well constructed decent optic's. i'm impressed with the precision of the calibrating screws and the alignment screws. then the ability to lock in the alignment after aligning, this unit is not ready to use straight out of the box you will have to calibrate it like you would a laser callimater and then align it with the axes of your sirius mount i took mine to the soccer field near by and aligned it with a power line pole about 1 1/2 miles away the manual does not say how far you should be from the object you are using to calibrate and align it with but my guess is this is sufficient. this is not a process you can rush through it will take a few hours to complete. so after i was finished with all my adjustments i removed and reattached the scope to make sure that the next time i put it on it would hold it's alignment something to keep in mind when attaching the scope there is a little play on the two bolts used to mount it always hold the bracket in such a way that it seats the exact way every time and use the same sequence when snugging up the bolts because it will shift ever so slightly. so with a little patience and thanking it through this is a quality piece and i do recommend this product . when not in use i have a cutout for it in my eyepiece case to help preserve it's alignment.