carballada

just for general info, the answer is 79mm

maybe someone with this Lunt 60 could help me. My Lunt is in a remote location and I try to save one trip I don't have easy access to. Please could you measure the size of the diameter of the focuser ring? I try to figure out if is possible to fit one new Diamond, the diameter of Diamond is 88mm

This is a very old topic , but someone could confirm that the new Steeltrack also fits on the Lunt 60. I would like to upgrade my focusser also and I can not find any recent reference to that. any help will be appreciated.

please!!!!! thank you for share all this information!! and congratulations for this nice set-up that your are running regarding the skies... my sky is also terrible, as you know I am operating a remote observatory and you are invited to join us there, on this location my astro group has some observatories for sale ... but this is another adventure..... couple of additional questions: could you finish a sky point map using the sitech software? what results do you have on phd2?

Really nice metal pieces, nice counterweights and nice plates... I understood that you have access to this tools, that's something very useful for our astro hobby always we need a very specific metal pieces!! jajaja any new progress so far??

sorry for the delay, now I have another video balancing the mount, as Jonk said, the movement is completely free, on the e200 or mk2 you detach the motors to the axis (completely silent ) and one of the first movements

Thank you so much, Olly.

I am so much interested on this post because this is something that I want to do. Until now I prefer to prepare a two complete independent set-up than offer me the option to even shoot different targets, but I am ready for the dual OTA setup if appear an option on SGP to manage it. I think on SGP forum a lot of people is asking for this option of dual rig, but the developers are finding a lot of troubles dependind of what integration degree you want to have. Anyway seems it will be an 'extra' option to the regular SGP package, will see. For intance, I am not thinking to use APT anymore, even if it could manage the dual rig. I was try with NINA with no sucess (you need the 'pro' package) and of course with SGP you could run two diferent computers (one as main with the mount, the secondary only with the camera) and losse all frames when the main OTA is doin the dithering..... This is how it looks like run my current config with two complete different set-ups. It's more flexible but more complex.

Alan, thank you so much

Yes, no doubt, I think we have better skies here. (you could check it on my info page at https://cloud.carballada.com/photo specially the "allsky keograms" or the "RMS filedsums" could give you an idea :D) My final setup maybe is a dual rig on the Mesu, for the moment I prefer the versatility of use two different mounts (I am interested on asteroids also and I could do it after the Sii/Oii Narrow Band frames). Will see if finally I invest on a specific scope for rocks and move the TS107 to the Mesu but the complexity of running two OTA in one mount (capture software, dithering, lack of flexibility) maybe not worth the effort. If you look on the total integration time (56 hours) and you know that I only take frames when the target is minimum at 45º alt with no moon... you are running out of time very easily. On my site with my weather is so much complex to go further of 30 hours with only one camera working on a target. I hope I help you

Roger, thank you so much!!

I would like to share with you my last image. It's my first image captured with the new dual rig configuration. Dual "complete" rig, means two OTA, two mounts, etc. More than 56 hours of integration time. (Usually I am integrating 25 hours.. now dual rig is working.. ) Here the config: RC10 with Riccardi at 1500 and ASI1600 Focal Ratio: 5.84 Resolution: 0.54"x0.54" per pixel Field of View: 0.69° x 0.52° Dawes Limit: 0.46 arc/secs TS107 with flattener at 700mm and IMX183 Focal Ratio: 6.54 Resolution: 0.71"x0.71" per pixel Field of View: 1.08° x 0.72° Dawes Limit: 1.08 arc/secs Ha and rgb from the RC10 and Sii / Oiii from the TS107 Like always all complete info at Astrobin, Flickr and my blog https://www.astrobin.com/r77l43https://flic.kr/p/2hGa4Fyhttp://astro.carballada.com/bubble-nebula-ngc7635-nb-in-sho-palette/ All comments/critics will welcome

Congratulations!!!! (and also for the 40mm bar jajaja, you are more lucky than me). Regarding how simple looks, believe me when I think that the complexity is inside de two disks and in where is necessary a really narrow mechanical tolerances. I hope you could test it soon and share also your opinions I am still waiting to a test it with full charge (or more kg. not really to the limit of 100kg). Congratulations again. I hope you join the Astrobin group of this mount https://www.astrobin.com/gear/96514/mesu-mesu-200-mk2/ and also the new group that I created, more general about all Mesu mounts (including the original model, of course) at https://www.astrobin.com/groups/157/

After few weeks running and some good weather I have some updates on that. Here you find the last picture taken with the mount and the RC10, ASI1600MM-C, Astrodon filters and Riccardi. (close to 27kg at 1500mm) all data of this capture at Flickr and Astrobin https://www.astrobin.com/slwz3t/ https://flic.kr/p/2hmHkMQ I could confirm that the mount runs well, the phd2 graphics are very good with long good guiding time, for sure, no frames are excluded because the guiding. Currently I started a dual column setup on the observatory with the idea to move the second telescope to the main column (mesu200 mount) in dual rig config. More info at http://astro.carballada.com/first-night-with-dual-column-ager/

Well, we had some moon and that means I have more time for tests. Few days ago I passed Pempro for 98 minutes. This is the graph of capture, without any kind of guidance, of those 90 and a few minutes, the PointXP model stopped. There are 7 seconds captures using the main camera and with the telescope pointing near the meridian and equator. I think you can already see a reduced and spaced PE in the time. Pempro is designed to find PE in mounts with worm gear and we all know that MEsu does not have that, but you can use it to measure the PE of any mount and look for some frequency where you appreciate a higher PE. Here is the graph processed with the Pempro log viewer, applying drift correction to hunt the frequencies and get an idea of PE peak to peak. In that case the figures are: PE of 1.7 arc-sec (Pk-Pk) with a period of almost 1800s (half an hour), with all other frequencies with relatively much lower values. and here the same data applying drift and rotation correction In that case the numbers are: PE of 4.6 arc-sec (Pk-Pk) with a period of more than 2500s (more than 40 minutes), with very few additional frequencies and with very low values in them. I need more captures and more time to be able to make some comparison. And also see what the values are like with the PointXP active (to check its effectiveness) I'm looking to find some pattern in the PE and try to apply some PEC curve... but as I supposed: it not worth it, with guiding all these errors are corrected without problems, on the other hand, all errors are really small and prolonged in time. Another thing is to find out the value of drift in RA to adjust the values of the servos into the configuration and reduce/cancel it. For now it seems to be -0.402 arc-sec/minute in RA axis. But all it's about playing, isn't it? ;D By the way, if anyone is interested, ask me for the logs privately.