First I live in the USA east coast. I received the unit from Great Britain, quicker then buying from the West coast of the USA
Unit makes collimation EASY

I will deal with FLO again
Frank R

NAn excellent piece of kit, which I’ve used on my 8 and 6 inch Newtonians. I’d struggled a little using a Cheshire as I wasn’t really sure exactly what I was doing. Using the Ocal makes it really straightforward and quick. I stripped my tube to flock it and collimation after reinstalling the secondary and primary took around ten minutes and it was spot on. I’d recommend watching the official Ocal video (although the sound effects are annoying) to understand exactly what each step is. Once you’re familiar it’s second nature to remove or adjust the mirrors. Double check your results with a star test on the night.

First off FLO's delivery service always brilliant never had a problem and this time was no different 👍
So i went with Ocal Electronic Collimator in the end after trying a Cheshire, laser and cap and couldn't get collimation right on my 200pds.
I think the other tools would work fine but it's my eyesight which is causing the problem.
Stuck this beauty on had to figure out how to use it but done it first time of using it now my stars are finally sorted 🙂

After a run of evenings where I've somehow managed to acquire images that are *way* out of collimation, I bought this collimator from First Light Optics so that I could check collimation ahead of a session (the idea being to not have to waste too much of what little imaging time we have here in the UK collimating out in the field). The collimator works in a really simple way through dedicated software, although it still took me a fair amount of fiddling around to get what should in theory be a good collimation in place ready for the next imaging session. One of the things I've learnt using the tool is that my Celestron OAG can introduce a significant amount of tilt into the image train due to the design of its connectors, which was a valuable thing to know in itself. (I collimated first using the Edge Celestron T adapter) Using the tool I could play around with the OAG connection in situ to resolve the issue.

Having already got reasonably close to good collimation on my Mak Newt I did wonder whether the OCAL device would add much. Have to say. I am really glad I took the plunge - if nothing else, it really helped me visualize what was going on inside the scope with each of the adjustments. It also, I think, showed a very subtle mis centreing of my secondary - it's an awkward adjustment on a Mak Newt, and I still think it could be better, but I'm also reasonably confident it's closer than it was. The best part though we really being able to see in a very tight range, slight adjustments needed to the primary and seconday. Now just need clear skies to do a proper star test.

Added some screenshots to the CN thread:

https://www.cloudynights.com/topic/745723-questions-on-collimating-my-mak-newt-did-i-do-it-right/?p=12522353

Speed delivery from FLO, thanks.
If you have a Newtonian you need one of these, the mirrors in my 12 inch dobsonian are due for a clean, I know that when I rebuild it that it will be collimated perfectly, there is no point having fancy eyepieces if you haven’t got a perfectly collimated telescope, well that’s how I see it anyway. I’ll keep my Cheshire handy, if I’m unsure its spot on I’ll use this.
Would have been nice to have an M2 to 2” adapter supplied but I guess it’s aimed at imaging Newtonian users and they probably have one anyway, don’t forget to buy one if you haven’t got one already.

I ordered the Ocal electronic for my Newtonian telescope, it came just in time for the Xmas break, not had chance to use it, I will use it over Xmas break , always a pleasure to do business with FLO very FAST service & delivery & friendly staff, always keep up the work that you do, faster then any other delivery service, I know of, If i could, I would give them 10 stars rating.

I was a bit late to the party in finding this bit of kit but as they say ….“better late than never”
At £170 you need to be fairly sure it’s going to do the job, particularly as I had seen some mixed reviews on this product, so I talked with FLO and they assured me that if it didn’t perform with my telescope (250mm, F4 Quattro), I could return it for a full refund.
I’m glad to say that I needn’t have worried!
I have a permanent setup and use a Windows 11 PC and so I purchased the non-pro version.
The Ocal collimator appears very well made, well packaged and was easy to set up, with no connection issues. The updated instructions were very easy to understand and should be followed, particularly with regard to updating the config file with the centering code for your specific collimator.
There are few minor glitches with the user interface in the software, but these are minor and didn’t really impact my use of this tool.
Without a doubt, being able to follow all off your collimation adjustments on screen with reference circles and cross hairs, not only makes the process easier, it makes it so much more accurate. I still used coloured cards in the OTA to help identify some of the optical elements and made sure I re-focused the camera at each stage of the process, which is essential. Say goodbye to peering through pinpoint holes with blurry views, this is the way forward.
I love this bit of kit and will never go back to the old school methods. Thoroughly recommended!

Works really good but I didn't really do it completely correct so will collimate again soon. It did help collimation out though from where I had collimated with a star prior, just need to spend another round to fine tune it and my 6" SCT will be spot on. Shipping from FLO was awesome and will use them again for future purchases.

I bought this camera to set up the collimation of my Celestron CPC SCTs as I am unable to use the classical methods due to my personal circumstances The product is well made and its software seems bug freee easy to set up However the product is half baked. I got the standerd version which comes without adapters and more importantlly and inexplicaby - wuthout any instructions
There is a cringingly awful anateur U-tube video and an even more awful and strange unwatchable pidgin video from the manufacturer specific to SCTs which were of some help - but all other material is directed at other optical types Indeed the apparatus was designed for use with Newtonian reflectors, although it can be used for catadiopreic instruments
Anyway I have used the camera to collimate a spare C8 SCT OTA after buying a set of Bobs knobs and in about half an hours work I have managed to get to the stage that the video assures me is exact collimation I will soon repeat the procedure with my CPSs - when I pluck up the courage