Question About Dual Lane Roundabouts

Hi i have a question that ive been wanting answered for a little while i have 2 pictures for you below.

I use both these roundabouts on a daily basis. Both of which are sign posted as right hand turns and are dual lanes joining and exiting (i have put arrows on where i come in and where i come off).

I am correct that i still use the right hand lane for both these roundabouts and come off in either the left or right lane depending on circumstances and shouldn't be using the left hand lane to join the roundabout like a lot of people do?

http://postimg.org/image/3nu9g6ax1/

http://postimg.org/image/qdte95u4l/

Thanks