Meade LXD75 Mount
Posted 13 August 2009 - 04:20 PM
Posted 13 August 2009 - 09:37 PM
Posted 13 August 2009 - 09:46 PM
I originally bought mine to primarily use it with my Coronado, but it quickly became my preferred platform for deep sky imaging. Shortly after having it hypertuned I acquired a SBIG ST-4000XCM and an AO-8 adaptive optics unit. Using the AO-8 I've been able to reliably acquire 30 minute sub-frames through a 4" refractor. The only thing I would change on it would be to add a weather control feature.
Posted 14 August 2009 - 01:28 PM
Mine performed much better after a hypertune. I finally sold it to some lucky person so I could buy a DOB.
Posted 14 August 2009 - 04:55 PM
Posted 14 August 2009 - 07:32 PM
I've had my new mount for a little over a month and have put it through it's "break-in" period. I have recently done a reset for the first time as well as a drive training since the gears have developed a little more "play." It may need a lash adjustment down the road but I am not going to mess with it right now, even though I much prefer a mount a little more "rigid." But these motors are fragile and it is possible to "diminish" their life by pushing them too hard.
I'd really like to check out some astrophotography with it before I offer an opinion on it's drive tracking. It's GoTo's are spot on, and I'm going to experiment with it with consideration to a better mount if it's worth it, possibly a hypertune. It's too new to tell. I am enjoying it right now.
Posted 14 August 2009 - 10:02 PM
Posted 15 August 2009 - 01:10 PM
Once the drives are trained, it's reasonably accurate after a two star alignment and puts objects somewhere in the fov of a 32mm plossl on my 2000mm fl Mak. With the Ranger (480mm fl) it's near enough the middle of the fov every time.
Provided it's reasonably well polar aligned, it'll track ok for visual solar observation with my PST (I haven't bothered to add the Sun as an object for tracking)
I have the simple four buton (non-Autostar) control as well, but this has a software glitch - after moving in some directions, it'd sometimes start again and move a few arc-minues at random - I don't bother using this control now.
Overall a the LXD75 was a good purchase for me, and it's staying until I can afford a GM8 or similar.
Posted 21 November 2009 - 02:41 PM
Posted 21 November 2009 - 03:56 PM
It has been a very good, and considering the cost/value ratio, mount and I'll keep it for the C8 when I go bigger. I have both a Celestron and Meade goto mount. I find pluses and minuses with both but mostly pluses. While the CG5 get more press here on CN, I see a lot of LXD owners who love their mounts.
Posted 26 November 2009 - 05:07 PM
Posted 08 April 2014 - 01:10 AM
I have both the LXD55 and 75 mounts.
I use both for AP, and have had great luck with both.
I have the WarpCorps kit on the LXD55 in my observatory and plan to get one for my LXD75 and LXD55 field mount ASAP.
This kit will improve the tracking accuracy of both mounts a lot.
As mentioned, the Meade grease should be replaced, and the "slop" can be adjusted out of the mount with a little "know how", I've done both.
Balance is key, and if done right, the mount will track very well.
I have an Astrotech AT6RC with SBIG ST10-XME/CFW8a/ AO-7 on my 55. I use a 8X50 mm guide scope with a QHY5 II guide camera, using PHD, and have imaged up to, and including 40 minutes, per shot. I use the AUX port with a Meade #909 module to link the QHY, via PHD, to the guide camera.
The same setup is used on my LXD75, with the same results.
The polar scope in the mount is there for a reason, and I use it as such.
With a little time and care, these mounts will do a pretty good job in any use. The more "high dollar" mounts can do it better, but for the money, I like mine. But any mount is only as good as the time your willing to invest to make it better than factory.