Search found 330 matches

by PDB
Tue May 22, 2018 6:34 am
Forum: This is SolarChat !!
Topic: Some reflected light
Replies: 3
Views: 36

Re: Some reflected light

Thanks guys. Not as good as I wanted. Probably first and last for the season for me.

Paul
by PDB
Sun May 20, 2018 6:15 pm
Forum: This is SolarChat !!
Topic: Some reflected light
Replies: 3
Views: 36

Some reflected light

with the Quark letting me down, and in white light not much to see tried some evening observation yesterday. An RGB composition of Jupiter at 20:52 UT May 19. Jupiter barely 18° degrees above the horizon and sseing not good. Have seen better ones but with these conditions reasonable. The best I coul...
by PDB
Sun May 20, 2018 5:51 pm
Forum: This is SolarChat !!
Topic: Solarflats in Photoshop?
Replies: 18
Views: 191

Re: Solarflats in Photoshop?

So not a final Sweden - Finland. (How did the Fins get beaten by the Swiss???)
by PDB
Sun May 20, 2018 4:39 pm
Forum: This is SolarChat !!
Topic: strange things!!!!!!
Replies: 7
Views: 110

Re: strange things!!!!!!

you may find that a camera tilter works a lot better. Very true, the only good way to solve it, but this might not be possible on an LS/50 in prime focus because it will make the distance camera/scope longer and that could make it impossible to focus again. (That scope has very limited in-focus dis...
by PDB
Sun May 20, 2018 4:32 pm
Forum: This is SolarChat !!
Topic: Solarflats in Photoshop?
Replies: 18
Views: 191

Re: Solarflats in Photoshop?

I might be stupid but i can't se what i should paint black No you are not. This one is almost impossible to to. The bands are hidden in de V shaped white areas, but very close to other details. So if you hit the wrong pixels (and my hand is not steady enough) you will erase or darken other areas in...
by PDB
Sun May 20, 2018 3:15 pm
Forum: This is SolarChat !!
Topic: strange things!!!!!!
Replies: 7
Views: 110

Re: strange things!!!!!!

Hi, Are these images full-disc? Then I think it will be impossible to make a flat like that. The Sun getting dimmer at the rim will also be visible in the out of focus capture. That makes the flat incorrect, because it will get dimmer in places were it should not. You would need to change focus prob...
by PDB
Sat May 19, 2018 3:38 pm
Forum: This is SolarChat !!
Topic: Solarflats in Photoshop?
Replies: 18
Views: 191

Re: Solarflats in Photoshop?

Starts to look good!
by PDB
Sat May 19, 2018 2:44 pm
Forum: This is SolarChat !!
Topic: Solarflats in Photoshop?
Replies: 18
Views: 191

Re: Solarflats in Photoshop?

Did a quick test on the image. They are indeed in those spikes but very difficult to remove. You will need to do some carefully painting ...
by PDB
Sat May 19, 2018 2:37 pm
Forum: This is SolarChat !!
Topic: Solarflats in Photoshop?
Replies: 18
Views: 191

Re: Solarflats in Photoshop?

Hmm; firsy thought these were the ones, but closer look I doubt. If this is from your color image, the NR's seem very faint, so difficult to find. I would experiment and see how the image changes. But as it is color don't think you get result. You could try to convert a copy back to monochrome B&W a...
by PDB
Sat May 19, 2018 1:56 pm
Forum: This is SolarChat !!
Topic: Solarflats in Photoshop?
Replies: 18
Views: 191

Re: Solarflats in Photoshop?

Hi, on the verticalline there are some small spikes (going left above center, right below center). I think these indicate the NR's. Usually it is a pattern that you see in the opposite quadrants. Paul PS: never was able to make it work in color images. That gives strange results due to the 3 channel...
by PDB
Sat May 19, 2018 12:11 pm
Forum: This is SolarChat !!
Topic: Solarflats in Photoshop?
Replies: 18
Views: 191

Re: Solarflats in Photoshop?

Hi, never tried that for NR's. (I sometimes use the gradient tool in the old IRIS software get a more equal surface). Might work, think you just need to try it. I attached an instruction document to get rid of the NR's in Gimp. I could not post it in the reference library so attached it here. Rgrds,...
by PDB
Sat May 19, 2018 9:31 am
Forum: This is SolarChat !!
Topic: Solarflats in Photoshop?
Replies: 18
Views: 191

Re: Solarflats in Photoshop?

Newton Rings are more or less easy to removr in the image by using an Fast Fourier Transformation Filter in the Photo Editing Software. I do not use PS but Gimp with Gmic filters (free software, and the latest version can handel images with up to 32 bit bitdepth), so don't know if such filters are a...
by PDB
Fri May 18, 2018 3:24 pm
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

Good point. There is something on stargazerelounge: https://stargazerslounge.com/topic/2133 ... sun-in-ha/
Probably a bug in the driver where #of frames from shutter speed exceed the USB 2.0 speed? Maybe in combination with some other setting (Highspeed, USBTraffic)

Paul
by PDB
Fri May 18, 2018 11:59 am
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

Hi,

these horizontal lines ar not Newton Rings. (The NR's are the ones that are bent over the disc.) Could be some other interference (exists on a 178MM) but never seen that on an 120. Any weird settings in AS!2 stacking?

Paul
by PDB
Fri May 18, 2018 10:25 am
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

Just a silly question. I think you have the usb2 version of the camera (120MM not the MM-S) Did you install the lastest drivers from the ZWO website. I noticed a new driver was released a few days ago which now groups all cameras. (If I remember correctly, there was a seperate driver for the 120 MM ...
by PDB
Wed May 16, 2018 4:06 pm
Forum: This is SolarChat !!
Topic: HELP QUARK
Replies: 32
Views: 608

Re: HELP QUARK

Download the latest version of Gimp (2.10) and also GMic for gimp that has fantastic filters including the FFT's
I already deleted the converted image on my system but there was a clear difference with the original.

P
by PDB
Wed May 16, 2018 1:10 pm
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

Hi, First thing i should try next time is put the gamma value at 50 instead of 1. (For ZWO cams 50 is the recommended and neutral value) Exposure value, that you can only judge using the histogram in SharpCap. The LS50 is surely capable of producing excellent pictures. You will have more detail with...
by PDB
Wed May 16, 2018 10:43 am
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

To be honest, I have no clue what happened here. Never seen a stacked image like this.
if you open the file in AS!2 do the images also look washed out?
by PDB
Wed May 16, 2018 9:56 am
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

Hi, yes the upload was ok. That image doesn't look good, there is as you said no detail. Focus looks ok if I look at the solar limb so that is probably not the problem. (The Newton Rings can be avoided so that is not a real problem). There are some other strange artifacts in the image but I don't se...
by PDB
Wed May 16, 2018 9:19 am
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

When your file is uploaded you should see a screen like this where the Place Inline button is
Test.png
Test.png (17.64 KiB) Viewed 344 times
But you seem to have a file .png.tif extension. Are you sure if the file is correct? That filename questions.10_27_28_g6_ap1534.png.tif will probably give you problems uploading.

Regrds,

Paul
by PDB
Wed May 16, 2018 8:56 am
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

Have you selected "add files" in the attachment tab? then you should see a dialog box that lets you browse on your local pc to the file you want to upload. Select it, doubleclick on it, and it will transfer the file to solarchat. Then you can select the "place inline" an in the text box there should...
by PDB
Wed May 16, 2018 8:53 am
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

Just forgot not all file types are allowed. Best is jpeg or png
by PDB
Wed May 16, 2018 6:19 am
Forum: This is SolarChat !!
Topic: It is all in the detail.
Replies: 39
Views: 549

Re: It is all in the detail.

I focussed at 200 magnification Hi, i suppose you focused visually when you say at 200 magnification or do you mean 200% on the SharpCap screen. Focus position for eyepiece and camera are not the same. The camera needs to be more infocused than the eyepiece and I have seen many discussion on how to...
by PDB
Wed May 16, 2018 5:52 am
Forum: This is SolarChat !!
Topic: HELP QUARK
Replies: 32
Views: 608

Re: HELP QUARK

Hi Rainer, took the liberty to download your image with the NR's Tried to do it in GIMP (Fiji can sometimes be cumbersome to do something) and had some problems too. The image was saved in RGB (could be because of the dowload) When I converted it to grey it worked better. (Never had good results wit...
by PDB
Tue May 15, 2018 4:56 pm
Forum: This is SolarChat !!
Topic: HELP QUARK
Replies: 32
Views: 608

Re: HELP QUARK

Wat works is a prism in the optical path (that is also mentioned in the Dutch explanation). I did some tests with a ZWO ADC and that also works. Actually what that does, since you only work in 1 frequency) it tilts the focal plane instead of the camera. Same effect.

P