Search found 18 matches

by bellavia
Mon May 14, 2018 2:20 pm
Forum: Cameras
Topic: UV-IR cut filter
Replies: 3
Views: 687

Re: UV-IR cut filter

No, They both use AR coated protective window. Protective window won't cause halos. So the full spectrum of light is allowed in, correct? (Similar to the ASI 224). If true, this is good news, as a cut filter (or semi-apo filter) will produce sharper stars with less halos, using my 2-element flourit...
by bellavia
Sat May 12, 2018 8:07 pm
Forum: Cameras
Topic: UV-IR cut filter
Replies: 3
Views: 687

UV-IR cut filter

Hi,
Does the 183MC and/or the 183MM have a UV-IR cut filter?
I own both (cooled, pro models) and want to know if this might be a reason I am getting halos around stars?
I am also not getting much color with the color version. Perhaps it is getting washed out in UV and IR?
Thanks!
Steve
by bellavia
Tue Dec 05, 2017 1:26 am
Forum: Cameras
Topic: Bayer Matrix for ZWO ASI224MC
Replies: 10
Views: 4145

Re: Bayer Matrix for ZWO ASI224MC

white balance is always need to adjust and different software use different way that's good news there is some improvement I finally got my color card, and the latest settings to get better colors are extremely simple (actually embarrassing, considering what I had in my last post, as it is just the...
by bellavia
Thu Nov 30, 2017 6:41 pm
Forum: Cameras
Topic: Bayer Matrix for ZWO ASI224MC
Replies: 10
Views: 4145

Re: Bayer Matrix for ZWO ASI224MC

this is because there is no IR-CUT filter you can add one IR-CUT filter so the final image is not so red But the image is NOT too RED. it is too GREEN, which is the opposite of RED. I think there is something wrong with the method the FITS header is being written OR the matrix is NOT R-G-G-B. I was...
by bellavia
Wed Nov 29, 2017 1:55 pm
Forum: Cameras
Topic: Bayer Matrix for ZWO ASI224MC
Replies: 10
Views: 4145

Re: Bayer Matrix for ZWO ASI224MC

this is because there is no IR-CUT filter you can add one IR-CUT filter so the final image is not so red But the image is NOT too RED. it is too GREEN, which is the opposite of RED. I think there is something wrong with the method the FITS header is being written OR the matrix is NOT R-G-G-B. I was...
by bellavia
Mon Nov 27, 2017 8:46 pm
Forum: Cameras
Topic: Bayer Matrix for ZWO ASI224MC
Replies: 10
Views: 4145

Re: Bayer Matrix for ZWO ASI224MC

it's RGGB, but different app call it different I think the yellow one is correct you need to adjust the white balance to make the color better This is an image of a blue cable on a brown desk. When I debayer it with RGB , the cable is green. When I use CMYG, it gets much closer. But I cannot use CM...
by bellavia
Mon Nov 27, 2017 8:34 pm
Forum: Cameras
Topic: Bayer Matrix for ZWO ASI224MC
Replies: 10
Views: 4145

Re: Bayer Matrix for ZWO ASI224MC

it's RGGB, but different app call it different I think the yellow one is correct you need to adjust the white balance to make the color better This is an image of a blue cable on a brown desk. When I debayer it with RGB , the cable is green. When I use CMYG, it gets much closer. But I cannot use CM...
by bellavia
Mon Nov 27, 2017 2:26 am
Forum: Cameras
Topic: Bayer Matrix for ZWO ASI224MC
Replies: 10
Views: 4145

Bayer Matrix for ZWO ASI224MC

Does anyone know the Bayer Matrix for ZWO ASI224MC? Is it R-G-G-B? I am getting terrible colors when I do a de-bayering of the 16-bit FITS file, using Nebulosity (latest version, 4.17). I've tried changing the diagonal terms of the color balance matrix, but nothing works There are two attachments: T...