SolarChat!

Very good Paul!

Thanks Stu!

Re: Ha from 24-3-24 Lovely disks thanks Steve

Lovely disks thanks Steve

Lovely images thanks Peter

Very nice thanks

Thanks everyone, appreciate your comments. I hope to image again soon with the big scope.

Thanks folks.Appreciate your comments.

If seeing supports it, what happens if you image with the full aperture, do you observe a large decrease in contrast ? What is the the ideal focal ratio for k line imaging ? If you image down in UV at f6 (the native focal ratio of this scope) then the image is full of spherical aberation, which res...

Thanks guys, appreciate your comments!

Thanks Maurits!

Lovely additions thanks!

Following on from previous post with Saturdays Ha shots, here is the sequence from CaK from the day. I was optimistic of reasonable seeing, so dipped my toes in the water with the CaK full disk, but instead of the regular Skywatcher ED80 at f15 I decided to use the APM 100/800, stopped down to 53mm ...

Enjoy the deep sky and F1 Rainer!

Re: 21 April 2024 These are excellent thanks Ralph!

These are excellent thanks Ralph!

Hi All, Saturday was forecast a nice day, and, depsite cloud bubbling later in the day turned out quite nice. A lovely day to be out in the (chilly!) spring sunshine. I'll start off backwards time wise, with the full disk for the overview, this was shot last as I was reserving the better seeing of t...

Re: Ha and CaK disks 4/20/2024 These are great Warren!

These are great Warren!

A lovely set of disks thanks Arne!

An excellent set of images here Pedro!

Lovely! I like it!

There's a lot more contrast there JAmes! Good result!

Hi Ivan, yes, M80x1mm

Very nice adaptation there Rainer! THanks for sharing!

The ITF on that blocker looks rusted to me, it seems very cloudy.

Lovely shot Stu! You did well to image before the cloud got you. It's just arrived here and cut my session short.

The ghosting could be coming from the filters, but also it could be coming from spurious light reflecting off the inner walls of the OTA and/or the Lunt module tube wall. Advanced high absorbing black paint on all internal surfaces could help reduce the glare. My money is on the 2 'ERF' filters in ...

Exc ellent shot John, I was thinking aboit the sunspot number the other day, lets hope it represents an uptick.

Great disk Robert! DEfinitely take your filter with you on your trips!

Good disks thanks!

Timely captures Pedro!

These are excellent Nic! If you want to draw the proms out more try a second iteration of shadows and highlight, somewhere along lines of tone 10-15% radius 10-15 after the first iteration. You could try tilting the filter in the Lunt, I think an easier route is stopping down the scope. You're CaK f...

Re: Couple of animations from 4/18/2024 Nice cinema there Warren!

Nice cinema there Warren!

Super shots indeed thanks Marty!

Always nice to see your work Paul!

You're being harsh on yourself Nic, thanks for your kind words though!

Re: 18 Apr 2024 Full Disk White Light Good disk thanks Robert!

Good disk thanks Robert!

Re: 19 April 2024 These look good Ralph!

These look good Ralph!

These turned out well Richard!

I’m not sure how much further tweaking you could do, but I’m sure you’ll eventually squeeze out every last drop of capability from your setup. :D Be interesting to see what the solar spectrum CAK etalons show. Till then I keep fiddling, I can't help myself :D It certainly will be interesting. Keep ...

Welcome to the forum, will the screw thread back in? If not, just use a larger screw that will thread back in. It just needs to locate in one of the holes in the black ring you can see. When you have done this you can tune the scope, when it comes on band, all good, if it won't come on band locate t...

DeepSolar64 wrote: ↑Fri Apr 19, 2024 3:35 am Thanks Mark. My weekend looks a bit cloudy. Good luck.

Hope you get some sunocular gaps, we're forecast sunshine saturday morning so I will be up early tomorrow to capitalise on it.

Way cool!

Lovely disks thanks Richard!

Very nice CaK there Ella! Which Bresser scope are you using here? Hi Mark, just the cheapie bresser achromatic 100mm f10 stopped down to 80mm. For full disks and proms try stopping down to 60mm, you're not going to lose any resolution but you will get a bit more contrast, especially with the proms.

These look lovely thanks Arne!

Super images Ella, glad you have been getting some sun in!

Very nice CaK there Ella! Which Bresser scope are you using here?

Thanks everyone for your kind comments!

Soendergaard wrote: ↑Thu Apr 18, 2024 12:22 pm these are very good! what do you think about zwo183mm for solar imaging? I do like the high resolution

all the best
Steen

Hi Steen!

I love the 183mm for full disks, it is perfect up to around 800mm focal length.

I’m not sure how much further tweaking you could do, but I’m sure you’ll eventually squeeze out every last drop of capability from your setup. :D Thanks Stu, it's an iterative (obsessive?) approach. I have 6 different individual CaK filters, so, it has been some time to find the right combination a...

I never underestimate the small scope

Nice report thanks James!

Re: 17 Apr 2024 Full Disk White Light + Rocket Way cool!

Way cool!

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