@toofan :I used B+w 110 ND filter to take pictures .mind you its not the right filter to take pictures of sun as it will not block UV and IR rays .I had solar eclipse filter sheet from Planetarium,but unfortunately its was too dark to take pictures using it .So ,I had to constantly change the filters .First I had to looks thorough that sheet ,then I had to carefully remove it and place b+w ND 110 filter .
I was foolish not to order Baader Astro filter from US ,while I ordered b+w 110 (3.0) filter +cokin filters .Now I will make sure that I keep Baader astro filter ND3.8 in my kit .
Well,I produced that effect by putting my cokin tobacco filter in front of the lens .(shutter speed 1/4000 + f45 +Exposure compensation (-5 ) +ISO 200 )