Help?

I have the Canon 1200d
http://www.camerajungle.co.uk/produc...FQ2eGwod-e8OOA

I want to take pictures with a blanked out background and higher quality.

What lens do I need?

have you tried going on photgraphy subreddits? they may be able to help you more

by blanked i guess you mean blurry? if so then go for lowest F value possible and a quality brand... that is basically it AFAIK