registax.......issues

[wavydavy]

Can anyone help.........ive been taking videos of Jupiter lately and some are quiet good, others have an issue, where after I align and stack the image, once I go to the wavelets, and sharpen the image im getting a halo around the inner edge of the planet, like a defect, possible its just in the processing, but maybe not........any ideas? Will try and post a pic of what I mean real soon.........

[wavydavy]

Heres a pic........fast processing so its a mess just to show what I mean.....

[leelee970]

What kit are you using?

Could be a number of things - setting of the camera, collimation, not enough cool down, even mirror pinching will all cause some issues.

Lee

[wavydavy]

6 inch reflector....collimation spot on, my camera is the ASI120MM.......Using firecapture then regstax.

[Zakalwe]

Its onion ringing, generally caused by recording the avi when the gain is too low. You need to have the histogram about 3/4s along the scale.

[JamesF]

Its onion ringing, generally caused by recording the avi when the gain is too low. You need to have the histogram about 3/4s along the scale.

I'm in agreement with this.  There are multiple rings inside the edge of the image.  Sometimes you can get a single ring around the outside which might be indicative of too high a gain but I don't believe that to be the case here.

James

[wavydavy]

Thanks zakalwe and james (again), will experiment next clear night we have......

[wavydavy]

Ive heard of onion ring effect...........just wasn't sure.

[stoffe]

Have you align any of your pictures in your movie frame? There should be a lot of align points to start with to do a correct align. Then you can continue post processing.

Describe your way that you process your image.

[wavydavy]

Hi stoffe.......Im still getting to grips with registax and experimenting.......

[Tel]

I've never had much success stacking images in Registax, run your images through PIPP first then Autostakkert2 and finish off in Registax.

Works well for me.