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(also posted in a reply thread elsewhere) Hello there! I'm a newbie to this forum so I apologise if my question has been answered already elsewhere. I've been using a TAL200K for about 15 years but getting fed up with the rack and pinion focuser so i treated myself to beautifully made in Germany 2" thread adaptor plate and a generic 10:1 SGT crayford focuser ( these are branded Skywatcher, Lacerta, OVL but I think they are all the same. ) turns out this is much longer than the original TAL and only near terrestrial objects can be bought into focus. Unless there's an easy fix i'm sending the focuser back for a refund, soooo, is there a low profile crayford or other smooth action focuser that will fit the 50.8mm threaded plate which has a similar low profile to the original TAL ? best wishes.
By Ade Turner
Now I’ve managed to sort out control of my EQ6-R Pro using Stellarium via EQASCOM, I’m working my way through the other equipment I want to control from my Windows 7 laptop.
I’m stuck trying to get my Celestron focuser to be recognised. This is what I’ve done so far:
Downloaded the Celestron Focuser Utility Program (.exe file) from here: https://www.celestron.com/pages/manuals-software Also downloaded the December 2019 USB ASCOM driver set up from above. I ran the ASCOM driver set up and restarted the laptop. Connected focuser direct to laptop via USB. The focuser’s power light shows red and in Windows control panel it recognises the device as ‘Celestron Focuser’ but indicates no driver present. Ran the Celestron focuser utility program hoping it would connect and install the right driver so I could calibrate, but it can’t detect the focuser at all. Finally, ran APT to see if I could connect by choosing the ASCOM driver under ‘Gear’ but this doesn’t work either. Stuck now. I’m guessing I need to somehow ‘tell’ Windows where the driver is...?
Any thoughts? Thanks everyone
EDIT: I have previously had this focuser working correctly both with StarSense handset and via ASCOM (Celestron unified driver) through the aux on my old Evolution mount. However, now I’ve changed to a Sky-Watcher mount, I need it to function direct through USB.
Hi, I have changed the focuser on my newtonian but its too short.
I realise that I can just add an extension tube to it but I’m not sure if that is the best solution.
I also seem to have have a stray light problem (I’m getting a hazy image on a 5mm eyepiece).
A third problem is that I find it quite cumbersome that the focuser has to stick out so far (155mm+eyepiece).
I wonder if I might solve the stay light problem by extending the main telescope tube instead of the focuser and therefore getting the eyepiece closer to the secondary. And also maintain more precision in the focuser by not extending it.
As it stands the focuser would have to come out 265mm from the centre of the secondary mirror in order to focus. The secondary is 50mm wide. From primary to secondary is 950mm approx.. The primary is 200mm Thanks for reading. Any advice will be much appreciated.
Originally brought for my C11 HD Edge, which its made for, but if used with filter wheel, OAG, and 0.7 focal reducer the spacing is to far out, hence the reluctant sale of this A+ Condition, unused (other than to see if it worked) focuser. The price includes special delivery. Bank transfer, paypal is ok, or cash/collect...ect... The price is £200. This would be great for planetary imaging, imaging without using an OAG, bringing the travel closer. Thanks for looking.