16.03.2020 Bright spots few and far between.

[Rusted]

I have been experimenting with a new blocking filter. A 12mm Lunt B1200S2 "straight through."
Unfortunately the cloud gods were punishing me for my piggy bank foolishness. Literally mere seconds of clear sun all day.

The field of view is obviously larger than the BF5 but has more variations of brightness across the image. [PST Sweet spot.]
800x600 works best with mostly even brightness except at the corners. Had I had a few more periods of sunshine I might have achieved more.
I had to remove the 1.25" EP receptacle X and screw the ASI174 directly to the T2 thread on the BF body to achieve inward focus.
The BF is completely hidden inside a 2" to T2 threaded adapter. 

 

[Pete Presland]

Looks quite promising, could you do a flat before imaging to help the remove the bright spots?

[Rusted]

These were taken through cloud and overprocessed so are not representative.

I have never tried a flat. I shall treat that as my next exercise on my learning curve.

Thanks.