matt_baker

What would be the best way to go about PEC Training a CGE with a C14 mounted onto it?

I remember trying to guide with a 50mm guidescope (not ideal I know) and the DEC guiding was awful but RA was okay after calibration.

Is this something PEC can fix or is there something else at bay here that needs fixing with the DEC?

Didn't go to plan so well but at least I got all the panels lined up properly. I'm not sure what happened to the panel in the middle where there's obvious blurring, probably a hint of bad seeing? I'm also getting weird diagonal lines where ever I went possible from the sensor but I'm not sure why that's happening, could anyone help?

I did take a solar flats but for some reason it didn't decide to work? I de focused on a patch where it was illuminated throughout the whole sensor and exposed for 50% of the histogram and applied it in AS!3

Equipment:
Lunt LS60THa
QHY5L-IIM
Skywatcher AZ mount

Okay, thanks 👍

How well will a Canon 60D and a MPCC MkIII hold up with the stock focuser? I reckon it'll weigh about a kilo in total

No problem

You did? Maybe you need an even larger magnification then to correct the sampling.

Also I meant the after result of the Lunar picture aha but it's okay

Basically because you're so undersampled with the camera, it causes the pixels to become very blocky. Drizzling sorts this and smooths the final product. 

If you don't want to drizzle everytime I would use a 2-3x barlow lens to correct the sampling, since the camera uses large pixels

What does the after product look like also?

20 minutes ago, bencevokoszt said:

Worked, thank you :3

No problem, what setup are you using?

2 minutes ago, bencevokoszt said:

Yes, that's what he looked like.

 

Try drizzling it in AS!3 maybe and see what that turns out as or it could be that it's not debayered properly

Did it look like this before you did all the noise reduction and unsharp masking?

1 minute ago, CraigT82 said:

Excellent! Eaily one of the best mosaics I've seen... well done!

Thank you so much! That really means a lot for you to say that, I've come a long way in such a short amount of time using this beast of a scope

Okay, here's the drizzled monster of an integration, all 93MP of it

I did 2 iterations of decon at 10 iterations a go and 2 of MLT with light sharpening settings and a very light curves adjustment

22 minutes ago, gorann said:

A stunning image and like everyone else I am looking forward to the new drizzled mosaic. After that you just have to shoot the other half of the moon😉

If only UK weather will permit that 🤣

This is a better view actually

This is now the exact same processing. Two iterations of Decon in PI and HistogramTransformation on same settings

7 minutes ago, CraigT82 said:

The image on the right is soooooo much better!! The drizzle will have helped as you are undersampled but I didnt think it would help that much! Did you sharpen the two images identically? 

Exactly what I was thinking! Yes, they're both the same (I think) or at least very very similarly edited. The one on the left may have had a tad more sharpening but nothing major.

Yes, it was undersampled but I never thought drizzling would make that much of a difference so I didn't bother with the extra time. Overall, a massive result!

Drizzling with 75 frames stacked per pane has made a huge difference, especially in terms of noise

Here's a comparison between the two (Left = Before Right = After)

Will try with 125 frames per pane next.

Maybe 125 this time?

Going to re stack all the data with 1.5x drizzle and see how it goes. Gonna take me a while to do all 53 again lol

2 minutes ago, Laurin Dave said:

Very nice,  both are excellent and you absolutely do need to click through to see the high res version..  My preference is for version 1.  How long did the capture take and how do you execute it?

Dave

Thanks!

Overall it took me about an hour and a half to capture all of it. I used a rough 30% overlap with each pane to account for any error in tracking and for ICE. I achieved this using imerge and overlapping each frame to eventually create an entire mosaic. 

The school that I attend also has an in house observatory that houses the C14 and CGE and, although it's getting old, it does the job well and I can create images like this. I'm able to use the observatory whenever I want as I have a key and live a 5 minute walk away, so when it's clear, I can just hop over with my dad. It is a shame however, since I'm the only one who actively uses it because no one else either doesn't know how to operate it properly or they live too far away and the weather in England is always unpredictable

Thanks for both of your replies!

I do agree that the second one is a little over sharpened when I pixel peep, especially around the terminator but I was thinking of using the second one as a photographic print instead

As for frames I captured 1000 frames per pane then stacked the best 75 in autostakkert

Done a few minor tweaks to make those craters just a tad sharper and increase the lightness

Please tell me what you think

No worries haha and it's ironic because my dad was with me and his name is Mark

Haha yes, I was afraid that if I didn't overlap enough, then there was going to be a tiny gap somewhere so I ended up doing a lot. Could have been 10 less I reckon without the overlap

Imaging telescope: Celestron C14

Imaging camera: QHYCCD 5L ll M

Mount: Celestron CGE

Software: Autostakkert! 3,  PixInsight 1.8

53 Panels taken at 1280x960 30FPS. Stacked in AS!3, Deconvoluted and sharpened in PI, stitched together in ICE, then got rid of artefacts in PS