Jump to content


© D Elijah
Credit Please credit D Elijah if you are using this image.

SS Group (20-07-2016)


Date of image 20/07/2016

Equipment: SW Skymax 150 (f12) at prime focus with a home-made Baader solar film filter. The telescope was mounted on an EQ5 pro. Camera: Canon 550D in 640x480 movie crop mode set at 1/640s exposure ISO400, the frame rate was 60fps. 

I wanted to capture the same sunspots I shot yesterday to see how they progress in time. There is a clear change in structure especially in the dole spot which is elongating north-south. The weather was Ok but interrupting clouds did ruin some frames. 

The total movie duration was about 5 minutes. The best 25% of frames were selected and decompressed by Pipp, Stacking and editing was done with RegiStax 6. I used about 20 alignment points. I think about 300 frames made it into the final stack. 

I did not ramp up the wavelets because I was getting ringing effects at the suns horizon. I also did not like the smoothen effect of the de-ringing feature in Registax. 

The telescope was tracking well.  Focusing was done by trial and error (by slowly tweaking the focus and watching 15 seconds of live view). I don't think the focus was as good as yesterdays shot. I am now thinking of attaching a scale onto the focus knob to fix the exact position of good focus.


Please credit D Elijah if you are using this image.


© D Elijah

From the album:

Photos from Bury

· 91 images
  • 91 images
  • 1 comment
  • 53 image comments

Recommended Comments

There are no comments to display.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.