Detail of sun spots in 67% sized image (2.30"/pixel).

The Sun was only 2° above roof of block of flats (10° above horizon).

Processing:
1, 41 frames stacked in K3CCDTools
2, Exported to FIT from K3CCDTools
3, Green channel was processed by K3APEX - gaussian unsharp mask (1.3, 500)
4, Resized to various sizes in K3APEX

The Sun was only 0.5° above roof of block of flats (8.5° above horizon).

Processing:
1, 38 frames stacked in K3CCDTools
2, Exported to FIT from K3CCDTools
3, Green channel was processed by K3APEX - gaussian unsharp mask (3.6, 700)
4, Resized to various sizes in K3APEX

This is my first light with my new homemade Baader AstroSolar™ foil sun filter. It was for the first time when I sweated during my astro photography session ;-)) - because it was during sunny day.

I am very satisfied with quality of Baader AstroSolar™ foil. The frames were captured during 9 minutes interval, because there were some clouds and I had to wait while they disappeared.

It is interesting to see lighter areas on Sun's disk (look at higher resolution photos).

Processing:
1, 10 frames stacked in K3CCDTools
2, Unsharp mask (2, 0, 400) in K3CCDTools
3, Selected only green channel in Corel PhotoPaint - to suppress chromatic aberration caused by refractor
4, Enhanced contrast (50%) in Corel PhotoPaint
5, Resized to various sizes in Corel PhotoPaint

The same day as above - another test with 10mm eyepiece. Yellow filter was used for reducing chromatic aberration.

Processing:
1, 8 frames stacked in K3CCDTools
2, Unsharp mask (2, 0, 400) in K3CCDTools
3, Image cropped to cut off vignetting
4, Brightness-Contrast-Intensity (-10, 25, 0) in Corel PhotoPaint
5, Resized to various sizes in Corel PhotoPaint

Processing:
1, 347 frames stacked in K3CCDTools in X2 mode
2, Unsharp mask (2, 0, 300) in K3CCDTools
3, Resized to various sizes in Corel PhotoPaint

Processing:
1, 588 frames stacked in K3CCDTools
2, Unsharp mask (1, 0, 500) in K3CCDTools
3, Converted to grayscale
4, Resized to various sizes in Corel PhotoPaint