I am using a Sealife Reefmaster DC310 with dual Sealife strobes. I just had the wide angle lens (Sealife sl970) given to me. In setting up the camera I find the flash diffuser does not fit when the wide angle is snapped in place. What am I doing wrong? Is the diffuser still necessary when using the wide angle w/strobes. I know Sealife has come out with accessories which make the diffuser obsolete, but I don't own it yet. Any help is appreciated.