SolarChat!

RodAstro

That's a excellent full disk from a Quark Mark.
What make of scope was it? My 60mm f3.8 lens on the Solar Scout is awful.

Cheers Rod

RodAstro

Hi Alexandra thanks for confirming that, I am always unsure and like many people never read the silly rules, silly me :lol: And thanks Rusted for bringing it up. I must admit I quite often download a picture and alter it a bit, mainly to my liking and also because my monitor has very few parameters ...

RodAstro

I have a feeling the reflection may be caused by the close proximity of the rear camera lens to the Quarks first blocking filter. I had the same thing when trying to make a Ha unit with Bob's filters when putting collimating lenses close to the filter even though they were coated. The blocker is bas...

RodAstro

Hi Brian

Lovely images
I'm a bit confused though, in your text you say the large disk at 1.6x is with the ASI174, but on the image it says 1.6x is with the ASI1600, am I reading this wrong, I have just been to the dentist so a bit drugged up so could easily be me

Cheers Rod

RodAstro

Hi again forgot to say don't spend to much on it as Quarks don't seem to be very good at full disk stuff, maybe better to do mosaics. I am with you on flats for full disk, I have never been happy with them, they work fine on high res, maybe its the Quark. I always correct mine in Ps far easier. Chee...

RodAstro

Hi Minh A 50 mm finder/guider works well. You can put a reducer before the Quark I do this on my 150mm f15 refractor to bring the image scale down, not for full disk, but it would work on a smaller scope. I use a Pixco 0.7 camera reducer taken out of the camera fitting and then fitted into a 58mm ex...

RodAstro

Very interesting feature you have there.

Cheers Rod

RodAstro

I also agree with Rusted's points. Just thinking though what are we trying to prove? Is it that the Quark is good for the money, ore something else. Quarks are just good seconds and random, Just depends on what you want out of one, In the right hands and with a good setup they can be made to give ve...

RodAstro

Some fantastic stuff on there today we are lucky to get some clear sky, not what the weather forecasters said a day or so ago.
Thanks Ella

Rod

RodAstro

Hi Mark
That looks like a good setup for holidays, the double stack gives some awesome contrast.
How is it visually?

Cheers Rod

RodAstro · Re: 26.07.2021 Today's features through speckled overcast. Very nice Chris Rod

Very nice Chris

Rod

RodAstro

Hi Alexandra Thanks for your reply I was thinking that about the seeing. My seeing is pretty diabolical most of the time and I struggle to get to f30 with my 6" f15 so use a reducer before the Quark and then its telecentric after so I can get some sort of stable image. Even at 4ms with the asi1...

RodAstro

Hi I totally agree Nic, all of the active area is very sharp and has little movement, I guess the movement is upwards towards the camera so looks more stationary, were as around the active area everything looks like it is being blasted away from the active area across the solar surface, it gives me ...

RodAstro

Hi Alexandra The Great Fraunhofer refractor used two adjustable brass weights at one end of long bars with the bars centre on a gimbal mount to stop the wooden tube sagging under the weight of the objective, something similar in reverse would work. I'm afraid you do need two of them to work properly...

RodAstro

My pleasure, that's what we are here for.
I'm sure someone else will have other ways and hope they share them as well so we can all learn.
Showing nice pictures and fancy equipment is fun but the best part of this site is the help and learning we share.

Cheers Rod

RodAstro

Hi Maurits Lovely disks with lots of detail and superb contrast. Do you do flats? I find them a real pain for full disk and when I get such a good disk as yours, with a nice background but just a simple problem of two areas not having the same brightness I just use Photoshop to correct this, also so...

RodAstro

That is a pity Martin it seems like there is an opening for you there as the planetarium director/astronomer has not long retired.

Cheers all
Rod

RodAstro

Thanks Martin I agree it is interesting and what I wanted to highlight was how some information is lost in some processing processes especially processes like contrast boosting. Sometimes the image can be made to look more dramatic by boosting some information but in the process you can inadvertentl...

RodAstro

Hi
I still like grayscale the best as it just has more detail to my eye always has, I just have to be a little more carful with the contrast like this.
Cheers Rod

RodAstro

Hi thanks for all the replies As I said I would give it a while before giving my opinion so here goes. I have always been one for grayscale images of the sun because I can just see more detail but have done colourised pictures because people seem to like them. Since I have been imaging in Ha there h...

RodAstro

That is one beautiful prom and image Lou
Brilliant bit of processing to bring it out.
Do you use deconvolution at any point in the process?

Rod

RodAstro

This is all very interesting and thanks for the replies.

I will give you my opinion in a couple of days when everyone has had a chance to reply and see if that stirs any opinions.

Rod

RodAstro

Any reasons James
Is it just a more pleasing colour or do you see more detail?

RodAstro

Hi I am just interested in what people can see better in each image.
Are all the opinions the same or is it just down to the viewers personal taste.

The two pictures are the same image just one I have done a final colour on it so all processing is the same until the colour.

Rod

RodAstro

I see now why you have six sections,
Excellently put together

Rod

RodAstro

Good catch Paul
Nice to see another SS60-ds Quark working well

Rod

RodAstro

Superb full discs Ivan
Can I ask what camera you used

Rod

RodAstro

Brilliant Stu

RodAstro

Lovely disk Pedro

RodAstro

Thanks all
and its all come back together today

Cheers Rod

RodAstro

Nice sharp image there Raf

Rod

RodAstro

Hi A quick capture yesterday just before the sun went behind my neighbours roof, it was cloudy all day then about 6pm the sun came out so a quickly opened up the observatory and setup. The main spot in AR12833 has a nice bridge and appears to be splitting in two, maybe getting more active, it will b...

RodAstro

A superb full disk
And some beautiful images on your flicker site.

Cheers Rod

RodAstro

Thanks everyone

It doesn't I'm going to get any follow up images till this time next week, the weather has turned over night here in the UK

RodAstro · Re: 2021-06-16 - AR2833 (HA/WL) Very Nice Rod

Very Nice

Rod

RodAstro

Very Nice Stephane
Maybe they just put the brakes on to let people get a picture

Rod

RodAstro

Great detail Bruce

Rod

RodAstro

Super images James
Especially like pic2 and 3 of the proms lovely colour just like the real thing.

Cheers Rod

RodAstro

Nice ones Stu love the proms

Rod

RodAstro · Re: 16.06.2021 AR12833 in tolerable seeing. Nice ones Rusted

Nice ones Rusted

RodAstro

Hi This is my view of AR2833 a wider view than I normally do by using a 0.5 reducer just before my ASI174mm after the Quark, as the seeing was bubbling away as the sun was getting close to next doors roof. I cropped out the best part of the image ROI as well to speed up the frame rate. Ended up with...

RodAstro

Hi Alexandra
Yep that works.
Just like I remember, loads of these little objects streaming past.
I can't find another video on the net showing this.

Thanks for sorting it,

Cheers Rod

RodAstro

Sorry Alexandra I didn't fully pickup on your post, I went back and read it again and thought Oops. Your coronagraph is exactly the instrument that shows these things very well. Wish I could see the video. The link above does work but very slow so I haven't got to the part where Horace Dall mentions...

RodAstro

Hi Insects do light up against the black background. Mostly seen in coronagraphs and prominence telescopes where you are using a much brighter image than we normally use with our full disk Ha telescopes. I have seen what appear to be millions if them like rain in an older Lumicon prominence scope. A...

RodAstro

Thanks Pedro, Rusted, Ivan, Phil and Daniel

I did a little more sharpening, always wary of going to far to start with, easy to make it look dramatic but unreal and add sharpening artefacts, I think this is better though.
I still prefer the B&W one though I seem to be able to see more detail.

Rod

RodAstro

Hi They look like insects to me, very common when using wider band width for prom viewing. I don't know why or how they light up like that, sometimes you can get massive showers of them in the high atmosphere. I have seen showers of them through a coronagraph, this is where they were first documente...

RodAstro

Thanks everyone nice to get some feedback. If it wasn't for the eclipse I would never have found the little Daystar SS60-DS could do full disk images that were any good. I actually spent some time with it over the past week or so trying different configurations until I got some good images, so that ...

RodAstro

Hi You shouldn't need a ERF with a 80mm and quark. A UV/IR cut filter will reflect back out most of the heat and harmful UV, the Quark filter will also do that but the UV/IR will take some of the strain off the Quark filter and it may last longer. UV/IRs are cheap enough so no reason not to use one....

RodAstro

Nice one Rusted
How did you get rid of the cloud?

RodAstro

Nice Alexandra
I like the video just like my views this morning.

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