20250517 Sun (reducer finally works)

This is a test of equipment, a 1.25" 0.5x focal reducer.  It won't come to focus before, but then I remember that I have a very short 1.25" nosepiece for C mount.  It comes to focus finally.

It's easy to take a full disc shots now!  Maybe good for continuous monitoring, like making animations, I shall try later.

This is a simple two frames mosaic at prime focus.  The non-uniform illumination makes it a bit tricky, but this does not worth the effort now.

Close up with AR4087, with 2x barlows.

Solar imaging is happy in Scottish summer.

20250513 Sun

Didn't pull out my setup for quite long, the thing couldn't get focus properly at first for unknown reason.  I removed the filter and insert again, things work normally then.

Those two 1.25" focal reducer did not work, they looked identical optically and physically.

The solar filter is not very useful too. 

I am going to sell the above on ebay.

1055 (UT+1), prime focus:

1106 + 1108 (UT+1),, failed mosaic at prime focus

And then finally push up the exposure to bring prominences., not well executed:

Too little practice.