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?hmmm well the prior one i showed was pretty much the same, but maybe you didn't see the second image on that post What calibration problems are you having? -- Brian Brian Valente portfolio

Hi Brian, that's not the same graph that you showed earlier.? Never mind though, I am just a disturbance trying to learn how to debug calibration problems.

I made a habit of making large steps for calibration sometime ago, and I honestly can't remember exactly why I did that... I think that PHD was complaining that my steps were too small, so I just

Hi Jeff Are you referring to a reset to default values? from your hand controller main screen MENU->SYSTEM->RESET HGM DEFAULTS then power cycle the Gemini After that I recommend doing a Quick Start

How do you do default setting for anything on Gemini 2. I haven’t found a video that shows that yet. I have looked through the menu and I haven’t seen it. It has to be something obvious I just

Jeff are you imaging or observing? -- Brian Brian Valente portfolio brianvalentephotography.com <http://brianvalentephotography.com>

I have not tried those. I was thinking of getting a polemaster. On other mounts, I have used a polar alignment scope and it was usually close enough. I don’t even know if there is such a thing for

Sorry i should have said The DEC axis calibration looks fine [email protected]> wrote:

Hi Jeff Have you tried using PHD drift guiding, sharpcap, polemaster, or any of the other easy-to-use polar alignment tools? The built in ones are fine, but i think any of the above might be easier

Henk the backlash calibration looks fine to me? southern movement is not part of the calibration you're right they are both too big [image: image.png] -- Brian Brian Valente portfolio

From the calibration graphs, it's not just the RA that has steps that are too large but the DEC calibration steps are almost all backlash clearance (the ones labeled B).? There are just a few small

Thanks, John. I can sure try the MI-250 settings. I had set the limits but didn’t account for the difference in length between my new refractor and my C8.

Yes, as I mentioned this doesn't directly address your bumps, but I think it's important to make sure everything else is working correctly Another thing that would help is a longer unguided run like

Thanks, you're right, I don't have very good calibration. I'll do that next time I'm out. But I don't think that it's related to the issue that I'm seeing. I generally use similar settings for the

PHD recommended min limit for image scale is 0.5" so i would bin 2 at a minimum all of your calibrations are problematic here's a typical example the calibration run should be 25 pix across 12 steps,

Yes, using my 178 it should be 0.35 when using the OAG. I have binned it in the past but found that it didn't seem to help, so I just leave it native. Using my 1600 it should be 0.55 according to

Jamie is your pixel scale really 0.34"? the calibration looks really wonky too (or as a result) jamie.amendolagine@...> wrote: -- Brian Brian Valente portfolio brianvalentephotography.com

Here it is. I believe that from 19273 seconds onward the scope was on the East side, and before that point it was on the west. Jamie

I'll do that now. My plan for tonight is to switch to the guide camera where everything was working fine a couple weeks ago, before the recent rains. Jamie

Jamie Screen captures aren't helpful for this kind of thing. if you can upload your guidelog that would be great jamie.amendolagine@...> wrote: -- Brian Brian Valente portfolio