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About Celestron

Celestron Finderscope, Illuminated RACI
An illuminated, right angle, corrected image finderscope for Schmidt-Cassegrain or EdgeHD optical tubes.

Summary of Customer Reviews

Customers most agreed on the following attributes:
Strong construction (3)
Best Uses:
Astronomy (3)

Celestron Features

  • Right angle finderscope makes it easy to find your target when your telescope ispointed toward the zenith
  • Illuminated dual crosshair reticle allows for easy centering of your target; thestar cannot hide behind the crosshair
  • Gives a fully corrected image for easy, intuitive use
  • Individual focus adjustment for reticle and the view through the finder
  • Eyepiece assembly can be rotated left and right, making it easy to find a comfortable viewing angle
  • Dovetail bracket allows you to easily attach the finderscope and and remove it for storage

Celestron Specifications

External Length
7.5" in (191 mm)
Weight (oz)
24 oz (680 g)

Reviews about this item

Reviewed by 3 customers

(1 of 1 customers found this review helpful)


Good product with no manual


from Brasilia, Brazil  -  Casual/ Recreational

Couldn´t figure out how to focus the main optics. No manual here to help, either. Another user taught me how to focus: you have to hold the front lens cover and unlock the very, very, very tight knurled locknut. Then it was a piece of cake. After focusing, it gives very sharp images. It has a decent field of view and good quality images. One minus side is that there´s almost no extension over the lenses, so lot´s of stray lights enter the main optics. I´ll use a cardboard tube to make an appropriate shield. You´ll also need an allen (internal hex) key to adjust the aim once or twice. Very nice and quick to release dovetail base. All in all, a fine product, with no instructions. Hence the four instead of five stars.

(1 of 1 customers found this review helpful)


Excellent finderscope!


from Boston MA  -  Avid Adventurer

This thing can sometimes give me better images than my C8 telescope! It was fairly easy to install, the only hard part was figuring out how to get the thing to stay in place. Also, one of the adjustment screws cannot be turned by hand. Otherwise I'd give it 5 stars. The illuminated reticle is FANTASTIC. It's one of those things where you wonder how did you live without it.

(1 of 1 customers found this review helpful)


My best purchase to date for my 8SE


from Queen Creek, Arizona  -  Casual/ Recreational

Bought this for my Celestron Nexstar 8SE and received it today. It comes complete with mount, batteries, no instructions or mounting screws. It is a 9x50 finder in case anyone wanted to know. It is quite well built and heavy. It has for me a heavy mount, not plastic but metal. The cross hair lighting is controlled with a potentiometer, not a step type switch. Mounts fairly easy on the 8SE tube. Only issue was mounting it with the Celestron mount for the camera. The camera mount is plastic and I had to grind off some of the plastic to install both the finder and the camera mount at the same time. After a little work they go together just fine. I do not think the weight carrying ability of the camera mount was compromised. Visually it makes the 8SE look like a real scope unlike the cheap finder it comes with, which was very awkward for me to use. I am looking forward to using this finder for a long time. Adorama's price and delivery, as usual, was excellent. Hope this answers some of the questions as the advertising for this is extremely limited!


Questions & Answers Powered by TurnTo®

Questions about this item:

John W  I just received this scope today and had no problem mounting on my Nexstar 6SE. I've been trying to align the scope with the main scope with the turn screws. There are two screws, one on the top and on the rightside that go through the outer ring. When I get the scope in alignment and tighten those screws it goes out of alignment. What is the chrome round column that is on the left side? It looks like a screw but won't turn. It looks like their is an allen head or a plug-in, something in the middle. Is there a way to move this piece, it won't move when I turn it. John Wallick
MICHAEL S  I am not familiar with this particular equipment & situation..I am sorry i cant help
Shopper  Fit on sct 6 advanced series?
Thomas S  I had no trouble fitting it to a Celestron C6 SCT.
Shopper  I am looking for a finder scope for my Nexstar SE 8. Has anyone used this finder on an Nexstar SE 8?
ANGELA B  I used the Celestron RACI finder on a C8 and my current scope, a C11. Use on the SE8 should be similar. I like the right angle erect image feature since it matches the star atlas I use. The illuminated reticle feature does work, but the red light is too bright and the rheostat does not permit a sufficient range of dimming for my preference. The illuminating fixture can be screwed out and left off w/o affecting use of the finder. Most annoying however, is the eyepiece rotation mechanism, which is just 2 screws operating in a shallow plastic groove. It's too easy to back off a screw a bit too much, in order to rotate the eyepiece, then the eyepiece just falls out of the scope and lands on your foot or in the mud. Lousy design, very frustrating. There are better RACI finders out there.
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