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John
Reviewed in the United Kingdom on August 3, 2024
A good device to collimate my dobsonian. Easy to setup and use. A must have for anyone with a good telescope.
Disneyfan
Reviewed in the United States on June 14, 2024
Right out of the box I found it perfectly aligned and used it without any issus.
Chad Smith
Reviewed in the United States on February 21, 2024
Works great
Martin
Reviewed in Germany on December 12, 2024
Vorher unbedingt testen, ob der Laser vom Kollimator selbst zentriert ist. Dieser ist um einiges besser eingestellt als ein anderer der Marke Svbony
CLAVAS
Reviewed in France on October 10, 2024
Observations
AZdesert35
Reviewed in the United States on September 1, 2023
I am recently getting back into my childhood hobby of astronomy. I’ve forgotten most of what I learned back then and don’t have the time I used to have to commit to the hobby, but at least now I can afford a few things without having to mow my neighbor’s yard. This device had some good heft to it and felt solidly built. All the components operated as expected. You can make manual adjustments but I didn’t have to do much out of the box. The laser is easy to see and track. Well the dot is, not the laser. Please don’t look at the laser. This helps optimize my optics for a much better viewing experience with half the hassle of more manual methods. It should fit most common scopes out there. I’ve found some real gems from Neewer over the years and don’t hesitate to try things from this brand.
me4ku
Reviewed in the United States on August 30, 2023
these lasers are not very accurate , I used two other alignment tools to cross checkafter using two different manufactures laser devicesand decided to go old school tools on the alignment ,worked out better faster etc..plus the danger of laser to the eye balls that's non fixable accidents do happen!I did decided to keep this one and will play around a little more with itIts loose as a goose to both manufactures were ! This one was a Gen 2 (No intensity control) bad dot though....
Rynn
Reviewed in the United States on July 17, 2023
An excellent product with a very nice finish. The item has hex head screws for adjusting the position of the laser, cleanly hidden beneath a screw on metal cover.I placed the collimator in a V-block and rotated it to test the laser alignment, it was dead on from the factory.An excellent tool that drastically simplifies the process.
Book Gnome
Reviewed in the United States on May 28, 2023
If you’ve ever collimated a larger reflector telescope, then you know how repetitively annoying moving the brief distance from the front to the back of the telescope can be as you make many tiny adjustments. After years of doing it the traditional way, I finally decided to get a laser collimator and save myself some shoe leather (and frustration)! This collimator was spot-on, showing my Dobsonian to be correctly collimated (which I had done manually with the eyepiece collimator before testing this laser collimator). This one has a simple On/Off switch, and does not have variable laser brightness. However, this laser collimator is an updated version, with a crisper laser dot that appears round and not oval on the target surface.TIP: Occasionally your laser collimator may need collimating! Look online for videos about how to do this. The only trick with this particular product is that the three equally-spaced adjustment screws are hidden under the screw collar just above the collimator view window (see photos). REMOVE THE STICKER FIRST and then unscrew the collar to access the adjustment screws. A hex wrench is provided for this purpose. Again, mine was spot-on and needed no alignment, but in case you need to collimate yours this is where the screws are.NOTE: This collimator includes a VERY nice 2” to 1.25” adapter that uses a brass retention ring to protect the laser collimator (or your eyepieces) when inserted, instead of just a screw which can scratch your eyepiece barrels. However, if you swap this with your existing 1.25” adapter note that it adds about a 1” extension, at least compared with the adapter that came standard with my Orion SkyQuest.
Beowulf and Migwit
Reviewed in the United States on December 2, 2023
So the idea behind this collimator is that if your primary reflector is properly aligned to your secondary (the diagonal flat mirror), then the center of the primary will be centered on the secondary and normal (perpendicular) to the line from the center of the secondary to the center of the primary. Any light hitting a mirror in the normal direction reflects back exactly the way it came. Thus, a laser properly centered in the eyepiece holder will bounce off the diagonal, hit the primary reflector and come back along the same path into the throat of the laser. If the primary is misaligned, the beam won't come back on center, but will hit the target somewhere off to the side (unless it's WAY off). Thus, all that's needed to collimate the mirror is to adjust the adjustment screws to move the laser dot back to the center of the target where it belongs. Pretty neat! Of course for this to work properly, the laser itself has to be properly collimated (aligned) so that the beam is going straight down the center of the eyepiece tube and doesn't have its own tilt. You can check that by rotating the tool around in the eyepiece holder and ensuring that the dot still stays centered.
石田 裕
Reviewed in Japan on November 27, 2023
買った直後は壁に映して回転させながら、再調整したが、その後は撮影の前に手軽に確認できるので重宝している。
Denis I.
Reviewed in Italy on November 10, 2023
Sono al inizio del mio percorso in astronomia e ho aspettato un po per poter valutare bene questo collimatore. Raccomando questo modello che ha la luce tonda rispetto ad altri collimatore dove il punto e ovale. Nel mio caso dove il focheggiatore ha una lente di barlow al interno il punto roso e amplificato . Il collimatore e arrivato un po scollimato ma con un po di pazienza questo si può regolare. Non capisco perché non vengono controllati prima, non credo che si possono scollimare dal trasporto. Per questa fascia di prezzo rimane un buon collimatore, ma controllate prima che sia collimato altrimenti create casini. Per la mia esperienza serve assolutamente anche un cheshire, io mi sono trovato bene con il modello corto.
King Neptune
Reviewed in the United States on October 8, 2023
Could not be easier to collimate your scope. User-friendly and intuitive.
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