signal loss - Forums

Good morning, my equipment is an askar Fra500 and with the 130phq it also happens to me, zwo2600mm camera and antlia filters, the problem is what happens to my images, especially olll, in the lower left part I get the feeling that I lose all the signal, could someone help me? The images are from b5 but from b2-3 in trvinca the same thing happens to me.
It's mostly the bottom left corner. My gallery is a clear example of what's happening to me. Thanks.

📷 Filter_Ha_registered_ABE.jpg📷 Filter_Oiii_registered_ABE.jpg📷 Filter_Sii_registered_ABE.jpg

Could you post raw masters please.

Looks like a stray light issue. Did you check the setup for light leaks?

Did you rule out reflections from your filter rings? There are many reasons something like that happens.

Touptek filter wheels may suffer from IR light leaks because of a faulty firmware version, I don’t know about ZWO though.

I don't have to upload them, I upload them to drive

Robert Žibreg · Sep 14, 2025, 09:41 AM
Could you post raw masters please.

https://drive.google.com/drive/folders/1x232vFBFds1jabkGcEXQQexXqVu?usp=sharing

I don't have to upload them here, I'll upload them to Drive.

I don’t see this gradient in your OIII master, even after one round of GraXpert it looks fine to me.

📷 grafik.png

Tobiasz · Sep 14, 2025, 09:48 AM
Looks like a stray light issue. Did you check the setup for light leaks?

Did you rule out reflections from your filter rings? There are many reasons something like that happens.

Touptek filter wheels may suffer from IR light leaks because of a faulty firmware version, I don’t know about ZWO though.

lo revise si pero extraño que me pàsa en el observatorio de trevinca que es fijo y en casa con otro equipo

Tobiasz · Sep 14, 2025, 09:57 AM
I don’t see this gradient in your OIII master, even after one round of GraXpert it looks fine to me.
📷 grafik.png

pues debe de ser cosa de mi edicion creo, no lo entiendo

astrojuanan · Sep 14, 2025, 09:57 AM
lo revise si pero extraño que me pàsa en el observatorio de trevinca que es fijo y en casa con otro equipo

After seeing your masters I dont think it is an equipment issue.

Tobiasz · Sep 14, 2025, 09:59 AM
astrojuanan · Sep 14, 2025, 09:57 AM
lo revise si pero extraño que me pàsa en el observatorio de trevinca que es fijo y en casa con otro equipo
After seeing your master’s I dont think it is an equipment issue.

Mil gracias, prestare atencion a ver que puede ser

astrojuanan · Sep 14, 2025, 09:59 AM
pues debe de ser cosa de mi edicion creo, no lo entiendo

What is your processing workflow?

Tobiasz · Sep 14, 2025, 10:00 AM
astrojuanan · Sep 14, 2025, 09:59 AM
pues debe de ser cosa de mi edicion creo, no lo entiendo
What is your processing workflow?

para sacar el gradiente uso gradientcorrection tal cual esta📷 Captura de pantalla 2025-09-14 a las 12.04.08.png

astrojuanan · Sep 14, 2025, 10:04 AM
Tobiasz · Sep 14, 2025, 10:00 AM
astrojuanan · Sep 14, 2025, 09:59 AM
pues debe de ser cosa de mi edicion creo, no lo entiendo
What is your processing workflow?
para sacar el gradiente uso gradientcorrection tal cual esta📷 Captura de pantalla 2025-09-14 a las 12.04.08.png

Sorry, I don’t have much experience with GradientCorrection. Maybe someone else can help on that. I use GraXpert only.

Tobiasz · Sep 14, 2025, 10:10 AM
astrojuanan · Sep 14, 2025, 10:04 AM
Tobiasz · Sep 14, 2025, 10:00 AM
astrojuanan · Sep 14, 2025, 09:59 AM
pues debe de ser cosa de mi edicion creo, no lo entiendo
What is your processing workflow?
para sacar el gradiente uso gradientcorrection tal cual esta📷 Captura de pantalla 2025-09-14 a las 12.04.08.png
Sorry, I don’t have much experience with GradientCorrection. Maybe someone else can help on that. I use GraXpert only.

mil gracias de verdad

Tobiasz · Sep 14, 2025, 10:10 AM
astrojuanan · Sep 14, 2025, 10:04 AM
Tobiasz · Sep 14, 2025, 10:00 AM
astrojuanan · Sep 14, 2025, 09:59 AM
pues debe de ser cosa de mi edicion creo, no lo entiendo
What is your processing workflow?
para sacar el gradiente uso gradientcorrection tal cual esta📷 Captura de pantalla 2025-09-14 a las 12.04.08.png
Sorry, I don’t have much experience with GradientCorrection. Maybe someone else can help on that. I use GraXpert only.

sabes el scrip de graXpert?

astrojuanan · Sep 14, 2025, 10:29 AM
Tobiasz · Sep 14, 2025, 10:10 AM
astrojuanan · Sep 14, 2025, 10:04 AM
Tobiasz · Sep 14, 2025, 10:00 AM
astrojuanan · Sep 14, 2025, 09:59 AM
pues debe de ser cosa de mi edicion creo, no lo entiendo
What is your processing workflow?
para sacar el gradiente uso gradientcorrection tal cual esta📷 Captura de pantalla 2025-09-14 a las 12.04.08.png
Sorry, I don’t have much experience with GradientCorrection. Maybe someone else can help on that. I use GraXpert only.
sabes el scrip de graXpert?

You can find everything regarding GraXpert here.

astrojuanan · Sep 14, 2025, 09:52 AM
Robert Žibreg · Sep 14, 2025, 09:41 AM
Could you post raw masters please.
https://drive.google.com/drive/folders/1x232vFBFds1jabkGcEXQQexXqVu?usp=sharing

I don't have to upload them here, I'll upload them to Drive.

Masters are fine, it’s your workflow. Probably gradient correction

Robert Žibreg · Sep 15, 2025 at 06:24 AM
astrojuanan · Sep 14, 2025, 09:52 AM
Robert Žibreg · Sep 14, 2025, 09:41 AM
Could you post raw masters please.
https://drive.google.com/drive/folders/1x232vFBFds1jabkGcEXQQexXqVu?usp=sharing

I don't have to upload them here, I'll upload them to Drive.
Masters are fine, it’s your workflow. Probably gradient correction

Yes, you're right, the problem is solved, thank you so much.