david_taurus83

5 hours ago, Adam J said:

First image, (no processing).

Painful experiance all in all but i dont have the energy to expand on that right now.

 

Adam

Be interested to see how you got on with guiding and dithering Adam..

Second image now with the ASI533MM. Have to say, this camera is excellent. Decent integration time on this one as well. Had some issues with the Esprit focuser for this so had to throw away a lot of subs. As a consequence I had to image through a full moon to get half of the OIII data but this target is very strong in OIII anyway.

100 x 300s Ha 6nm

86 x 300s OIII 6nm

20 x 60s each RGB for stars

All done in Pixinsight

Ha

OIII

Animated GIF

We're you looping frames in the imaging tab by any chance?

Get 2 trainers with soft soles, sandwich the adapter between them and push and twist. Works a charm. I've tried straps, mole grip, in a vice, heat, everything. The 2 Trainer Technique beats them all.

I take it that's just the locking ring and the threaded part can be move in and out? Have you tried the 2 trainer technique?

I think T2 or M42 is a bit small as well for that sensor. Would be better with M48 if using an OAG.

Be interested to see results if you used PHD PPEC algorithm. I find my AZGTI improves quite a bit after 15 mins or so of guiding on target.

When I had my CEM25, I did just as you described when setting up first. Put it in home (zero) position manually via the clutches and set zero on the handset. No need for it to find zero afterwards.

I would try and switch back to EQMod and see if it's the same there. If so, it's an issue with the mount, if not, it's the software.

That CN thread makes for depressing reading. Seems like the new SA GTi is pretty much the AZ GTi internals in a purpose made EQ platform and twice the price. If its using the same reduction gearbox on the motor with the 3 nylon planetary gears then that's very disappointing as it's the main source of backlash in the AZ GTi. Still waiting to see how folk on here are faring with theirs. 

Batteries?

Edit: Ah, sorry, just reread your post. Can you not send it back under warranty? You  could test it by rigging a laser pen to it and let it run for a few hours to see how far the dot moves and measure the angle to see if it's moved enough. Or let it run for 24 hours and the dot should return back to its starting point. 

Is it set to debayer the previews?

Cartes du Ciel works much better with your mount. Yes, it looks a bit Windows 90's but it works great. Stellarium looks pretty, but myself personally, I can't get on with the user interface.

My kit is permanently left out under a Telegizmos cover. It does get pretty warm under there but no issues to report. The Pegasus Power Box reports above 35°C under there on hot days but I haven't seen 40°C. My shed, for example, when the sun beats down on it after lunchtime, regularly gets above 40°C with the doors shut. My mini PC is in there switched on 24/7 and that's fine. What we consider hot weather, (though the media trend this year is to describe it as extreme...) is normal for other parts of the world and they get on just fine.

Just reading @inFINNity Deck website there and it's very disappointing to see how they have designed the fine focus control. On one hand we have a good sturdy rack and pinion system for the course focus but essentially a crayford type friction system on the fine focus and not easy to adjust either. Very poor on a scope designed for imaging.

I'm guessing I also have this same issue. Fine focus still works but slight pressure on the drawtube and it slips if I adjust coarse focus. I thought it was the fine focus knob itself slipping on the round shaft so I ground a flat surface on one side but even then the shaft stays stationary while course will turn.

Its not NINA or the AF3. Its the Esprit fine focus. I can move the coarse focus knob fairly easily while the fine focus is held firm.

Will start another thread elsewhere as its not a software issue.

Something isn't right. It appears something is shifting slowly and the AF3 is compensating to keep up. It could well be that it is getting good focus at the time but shifting over the course of 20 minutes or so until the next focus run. I've just checked back on months of focus routines and the average focuser position is roughly a stable 510500 steps. Just looking back 4 days ago and the steps were reading 510089 and last night ended up on 505776. That's 4313 steps in 4 days! Something must be slipping.

Have posted this to the NINA Discord channel but no harm putting in here as well. On the outset it looks like a software issue but I'm not exactly sure so have posted in this thread as could also be mechanical, atmospherical issue etc

Hi all, I have been having issues the last couple of nights with focusing after meridian flips. Never had an issue before and when I start my sequence everything looks perfect. Went to check my subs from a few nights ago and realised most if not all subs after the flip, auto focus had failed miserably. I kept an eye on this last night and sure enough, issues started after the flip. See below screenshot of my focus graphs. Imaging Witches Broom in Oiii, Esprit 100, Astronomik 6nm filters and DSD AF3. First few focus routines are perfect and results of 300s subs tending to be 1.7/1.8 HFR.

These are my typical focus curves and yield good results. These are in fact from last night before meridian flip. Notice the final position doesn't change too much. To be expected as temperature cools. However, after meridian flip, things change.

First one at 00.55 I let it take the first post flip sub. HFR jumps from 1.8 to almost 3. I stop sequence and run auto focus myself. There's a huge difference in final focus position and these were only taken minutes apart. I thought maybe focuser is slipping but doesn't explain why everything was fine before meridian flip? I left it to run overnight anyway and HFR values throughout the night are tending to be 2.2 or there abouts. Inspecting the subs today in Blink and its noticeable to my critical eyes that they are below standard and I can't use them. Any ideas? We have a few rare clear nights here in the UK this week so was hoping to jump to Ha this week with the full moon but this could be a significant stumbling block if I can't figure it out! TIA

Another vote for flanged pier. You'll never know if you ever need to move or remove it, even temporarily. Can't be done with an insitu pier.

The Facebook page was fairly busy there in July. There is a group on .io now for users. So the mounts are being shipped. 

I had the GT71 a few years ago and tried with the Hotech 1.0 flattener. Couldn't get on with it at all and that was with an ASI1600. Like I said in the other thread, best results were with the WO reducer.

Who done the modification?

I'd get the WO reducer as well if possible as if you try a generic one and your not happy with results, you'll just start convincing yourself the WO one is needed anyway. I've yet to find the reducer/flattener anyway that gives perfect stars into the corners..

I used a custard tin.

I've had this issue before. As you've suggested, if there's no obvious bugs in your current version, wait for a couple of revisions and download then.