I have a Borg helical focuser and a custom T2/C-mount low-profile adapter, see the second picture in this thread: viewtopic.php?t=18394

Perfect! Those boiling ARs at the limb are the best.

Perfect! Those boiling ARs at the limb are the best.

Alexandra, which Windows version do you use?
Did you perhaps unpack ImPPG to a folder containing the previous version? If so, try unpacking to a fresh folder and running from there.

I think I learned about the L-R deconvolution from Michael Wilkinson on SGL forum. It seemed like a straightforward enough (and fun) to implement method, and at that time I needed something more convenient than R6 for batch processing. The tutorial links on ImPPG's homepage should be useful. In the ...

Bruce, it is my understanding that for (our) solar imaging, when sharpening a stack, we need to remove the blurriness caused by 1) atmospheric turbulence (even though the stacker tries to choose the sharpest image fragments, it has to use some blurrier ones too), and 2) shift-and-add procedure (whic...

FLIR (formerly Point Grey) have made a “periodic table” of camera sensors with data on 120 models “from classic CCDs to the latest CMOS technology”: https://2.bp.blogspot.com/-H7FKWkZdizQ/XBp6DZM9dtI/AAAAAAAAXyw/euZLBSLxkJ4IiaQbNPrcEMTbbZIMLE8jgCLcBGAs/s640/Periodic%2BTable%2Bof%2BSensors.png Direct...

even the Lunt 50, like the Lunt 60., seems to have a objective with single lens Hmm, interesting. Where does the image come from? I just double-checked my specimen (purchased in 2015) and it seems to have a doublet. I mean I didn't disassemble it, but it shows two upright minified reflections of my...

Have fun, everyone!

And don't forget to check out the new improved "About ImPPG..." dialog

Main page: http://greatattractor.github.io/imppg/ Download from: https://github.com/GreatAttractor/imppg/releases/tag/v0.5.4 As requested by one of the users, ImPPG now has: New features Configurable look of the tone curve editor Enhancements Last loaded settings file name shown in toolbar All color...

Good luck with the setup, Alexandra.

PS here is a piccie of the Celestron with the Aries ERF finally fitted

This is shaping up to be a very interesting season!

Hi Stu, I love the idea. Here are some of mine, technical details are in the Astrobin descriptions. Sunspot animations in white light: https://astrob.in/23205/D/rawthumb/gallery/get.jpg?insecure https://astrob.in/41790/0/rawthumb/gallery/get.jpg?insecure Flare in The Monster (spectacular loops, but ...

You need something like this: Baader C-Mount/1.25" adapter, then you can plop the camera into any telescope. FireCapture should work fine for video acquisition.

Back focus = distance from the rear of the OTA to the OTA's focal plane. Etalons, telecentrics etc. need to be inside this distance. RC has quite a lot, SCT somewhat less, and adding a focal reducer moves the focal plane in, so reduces back focus.

I would fear the back focus would be insufficient (Lunt 50 needs some ~180 mm). With an SCT it would be easier to simply attach a PST (which works at f/10).

I present my latest Hα mod, consisting of a GSO Ritchey-Chretien 8" + Aries 214 mm ERF + Lunt 50 etalon assembly. I completed it back in June, but unfortunately haven't had conditions and time for an imaging session yet (beside basic testing). I'm planning on putting it to good use next year. The mo...

Stephen, thank you for the priceless popularization and outreach work you've done.
I'm sure the Solarchatters can keep this wonderful forum running.

Hi Don, ImPPG is for post-processing still images (stacks made with e.g. AutoStakkert!3) and alignment of images for a time lapse. For stabilizing a video like this you'd have to convert it to a series of frames. It'll be easier to use PIPP . But if you meant to stack this video, just feed it direct...

Excellent result and great details.

Question: I have problems finding a program to align the single frames. I have tried Registax5 and 6 but none of them will align my images.

Try ImPPG, menu Tools/Align image sequence....

I got an e-mail from FLIR about the new polarized light sensor from Sony (implying upcoming new cameras, I guess), IMX250MZR. Found some infographics: https://thinklucid.com/tech-briefs/polarization-explained-sony-polarized-sensor/ In short, every pixel has an individual polarizer; pixels are divide...

That's a great "diamond dust", Valery!

TheSkyBurner, that's an interesting comparison indeed.

Great resolution, Stu. I love the looks of the setup too.

Thanks for verifying this, Lou. I'll check the Spinnaker out and see about adding the support to PlanetaryImager (my Chameleon3 should work with Spinnaker according to the PGR website).

That's strange, I'd think all cameras should still be supported by FlyCapture SDK. Did you try accessing the camera via the FlyCapture's application FlyCap?

Mark, could you specify you Chameleon3's model number? My CM3-U3-13S2M-CS (sensor: ICX445) doesn't show rings in any of my Hα setups (Omega Optical, Lunt 35, Lunt 50 and their mods, Barlowed or not).