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Questar 3.5 vs Celestron C-6 comparison imaging Jupiter this morning

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#1 TerryWood

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Posted 02 July 2020 - 10:51 AM

The Questar definitely held it's own against the C-6 this morning. The seeing looked average-to-good so after I took a few captures with the Questar I continued with the C-6 for the rest of the morning. Now I wish I would have kept imaging with the Q too. I will be out there early for the transit. The shadow should pass just north of the GRS and should be a neat image. I think that happens around 0130 AM EDT. 

 

Anyway, I like this comparison and it speaks well for the Questar because the Celestron C-6 is a really good scope! Both were imaged at f/15. The C-6 image was downsized to match the Questar's scale. The only thing that concerned me was the obvious grid pattern showing up on the Questar image. I capture at RAW16, so maybe that's playing into it.

 

V/R

 

Terry

Attached Thumbnails

  • Q VS C6 COMPARISON 2 png.png

Edited by TerryWood, 02 July 2020 - 10:59 AM.

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#2 TerryWood

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Posted 02 July 2020 - 11:11 AM

I forgot to mention that these were imaged at 27-28 degrees above the horizon. Looking at them side-by-side, I think the Questar image is actually a tad sharper.

 

The C-6 still looks pretty good when viewed at it's larger image scale. Still working on processing the remaining captures.

 

V/R

 

Terry


Edited by TerryWood, 02 July 2020 - 11:14 AM.

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#3 dcollier

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Posted 02 July 2020 - 11:32 AM

The grid is because it is raw.  It is caused by the Bayer Pattern.  You need to debayer the image to get rid of it.

 

   -Dave


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#4 TerryWood

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Posted 02 July 2020 - 11:35 AM

I did debayer it using RGGB through Autostakkert, but still got the grid. Maybe PIPP will do a better job of it. I'll give it a try.

 

V/R

 

Terry


Edited by TerryWood, 02 July 2020 - 11:36 AM.

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#5 TerryWood

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Posted 02 July 2020 - 12:13 PM

The grid is because it is raw.  It is caused by the Bayer Pattern.  You need to debayer the image to get rid of it.

 

   -Dave

It seems that running it through PIPP first does the trick. I tried the Autostakkert "Force bayer RGGB" but PIPP works better for that. Good to know!

 

V/R

 

Terry



#6 RMay

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Posted 02 July 2020 - 12:32 PM

Terry, I recently pulled a Jupiter image from IG created using a C11 and compared it to one of your Jupiter images captured with the Q 3.5, and while there were some obvious noticeable differences (such as brightness and sharpness, of course), your images are, to use an awful pun, simply stellar.

Ron
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#7 rcwolpert

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Posted 02 July 2020 - 01:29 PM

I also think the Questar image is slightly sharper.


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#8 Optics Patent

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Posted 02 July 2020 - 01:40 PM

Both impressive - I see the Questar as sharper, but I'd suggest next time you post a comparison to leave us in the dark for a day to guess without our biases!


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#9 medpeds

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Posted 02 July 2020 - 02:32 PM

I also would give the nod to the Q, and I agree that a blinded comparison would be best!


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#10 TerryWood

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Posted 03 July 2020 - 09:39 AM

Thanks everybody, I really mean that! 

 

Sorry for the delay in responding. I had an emergency and ended up euthanizing my "buddy" this morning. 

 

The best thing for me to do is continue doing what I do because dwelling on this morning will get to me.

 

V/R

 

Terry

 

 


Edited by TerryWood, 03 July 2020 - 02:39 PM.

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#11 RMay

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Posted 03 July 2020 - 09:55 AM

๐Ÿ˜ณ๐Ÿ’”๐Ÿ’”๐Ÿ˜ข How very sorry for your loss. However, your mourning will turn to memories one day. Yesterday was the 24th anniversary of my dadโ€™s passing (and my mom followed him three months later). These can be hard times. Weโ€™re with you.

Ron
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#12 Toddeo

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Posted 03 July 2020 - 11:09 AM

Sorry for your loss. I just lost my "astro buddy"- last month.

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#13 Winks

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Posted 03 July 2020 - 01:40 PM

So sorry. My guys, Sherman and Nathan, keep me company at night both indoors and out with the scope. I feel your pain.

Kevin


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#14 Erik Bakker

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Posted 03 July 2020 - 02:27 PM

So sorry to hear that Terry. And Toddeo. Nothing quite like the company of a wonderful dog.
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#15 TerryWood

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Posted 03 July 2020 - 02:51 PM

Thank you all, it really means a lot! Ron, Todd, I'm really sorry for your losses too. It is not easy. It never is. Over the past five years I've lost my girlfriend, mom, dad, two uncles, an aunt, my good neighbor, now my dog. Sounds like a country song. I'll be ok by keeping the good memories close to me and being thankful for all they gave me.  I truly believe I'll see them all again on the other side. Now, back to your regularly scheduled broadcast.....

 

V/R

 

Terry

 


Edited by TerryWood, 03 July 2020 - 02:53 PM.

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#16 medpeds

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Posted 03 July 2020 - 03:54 PM

Terry,

 

I am very sorry to hear about your loss. Until my wife, son, and I acquired our Maltese, Jenny, four years ago, I didn't appreciate the depth of attachment that a canine can engender. Now I understand....

 

Joe


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#17 cbwerner

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Posted 03 July 2020 - 07:30 PM

Thanks everybody, I really mean that! 

 

Sorry for the delay in responding. I had an emergency and ended up euthanizing my "buddy" this morning. 

 

The best thing for me to do is continue doing what I do because dwelling on this morning will get to me.

 

V/R

 

Terry

Oh no!!!. frown.gif

 

We generally have 5 dogs here, all rescues, so we have to say goodbye more often than most. I'm sad when people die, but when dogs go, I'm a complete mess.

 

So sorry for your loss. I hope you'll feel in time that you're able to welcome another into your life, but that's a personal decision. Take care Terry. grouphug.gif


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#18 TerryWood

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Posted 04 July 2020 - 11:03 AM

Joe, Chris, thank you for both for the condolences. It was very thoughtful and I sincerely appreciate it. This forum has the greatest people! When a pet passes it certainly leaves an empty feeling, which is hitting me today. But, things will look up. I can't stay in the dumps, my buddy wouldn't want that! I'll be alright.

 

Thanks again everybody!

 

V/R

 

Terry


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#19 davidmcgo

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Posted 04 July 2020 - 07:00 PM

Gosh, so sorry to hear that.  We had to put our last cat down as he was losing a battle with cancer and when he stopped eating we knew it was time but I cried buckets.  He was really smart and family and that was the hardest thing I knew I had to do.

 

Deepest condolences to you.

 

Dave


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#20 Terra Nova

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Posted 06 July 2020 - 09:02 AM

Sorry for your loss. I just lost my "astro buddy"- last month.

My 'like' = frown.gif

 

What a cute little guy! A loosing good dog is loosing a beloved member of the family. I'm so sorry for your loss.


Edited by Terra Nova, 06 July 2020 - 09:03 AM.

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#21 GR1973

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Posted 06 July 2020 - 09:18 AM

I forgot to mention that these were imaged at 27-28 degrees above the horizon. Looking at them side-by-side, I think the Questar image is actually a tad sharper.

 

The C-6 still looks pretty good when viewed at it's larger image scale. Still working on processing the remaining captures.

 

V/R

 

Terry

Few years ago, I wrote that Jupiter in my Q is equal or sharper than many youtube videos that have been taken with bigger apertures.


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#22 GR1973

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Posted 06 July 2020 - 10:39 AM

Terry, I'm so sorry about your buddy


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#23 justfred

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Posted 06 July 2020 - 08:11 PM

Terry and Toddeo - so sorry to hear about your "buddies".

 

We are "dog people" and understand that this is never an easy thing.

 

Fred and Faith


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#24 Toddeo

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Posted 06 July 2020 - 08:22 PM

Thank you-everyone!doggy.gif.  My "Bandit Buddy" was a good companion.  Todd 


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#25 TerryWood

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Posted 09 July 2020 - 08:55 PM

I think I'm starting to feel a bit better, but that doesn't quite describe it accurately. Maybe, less bad? So, thank you everybody, I sincerely mean that!! I am on the upswing compared to earlier in the week. 

 

I even got out last night for about an hour. So, you know what that means...more pictures (in another post). 

 

V/R

 

Terry


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