Since Corona 1.5 depth of field has been disabled for free views to provide as smooth as possible experience when using interactive rendering. To enable depth of field, make sure that you are rendering from a camera. Both standard and physical cameras will work fine.
Important Notice: Due to a high volume of inquiries, our response times may be delayed. We apologize for this, and appreciate your patience as our team works diligently to address your concerns. Thank you for your understanding! If you are experiencing licensing issues related to the Enscape 4.1 release, please visit our detailed FAQ document here