Hi, I bought my first camera Nikon d3300 a week ago. I got 50mm and 200mm lens. I want to try Bokeh effect in my room with the Christmas lights. Could you please let me know what lens do I need to use and what is the shutter speed, Aperture and ISO I need to set up. Do I need to use flash for Bokeh effect? Please help me with this. And could you please tell me some beginner tips. Thank you.