I would prefer a Black Diamond 1.4 or Stewart Firehawk G3 over the Da-Lite HCCV, based on samples and reviews, but doesn't seem like they offer a masking housing. Do I have any other options? Maybe some add-on?
No focus issues - they are only about 4 inches apart. And no, the 2.35:1 screen is a StudioTek 130 G3 - 118" x 50' x 128' diagonal. The 16:9 screen ( currently a Da Lite HCCV - 106" x 59.6" x 121.6 " diagonal ) is in the process of being replaced with a Stewart Neve 1.1 screen. The best of both worlds, and less expensive than most electric masking screens.