The newest frame generation is the EVOlution of the earlier, very well-known frame series. The system has been redesigned from scratch. The result is a very similar look with some major advantages. With nearly the same outer dimensions, it is fully stacking compatible with the previous generation. The convertible design enables the easy removal of the upper part for an unrestricted use of ultra-short lenses. For this process, no additional tools are required, and no lose parts that might get lost are left behind. The galvanic insulation from the projector housing to the trussing is built-in. Due to this, there is no need for additional plastic washers to avoid electrical problems. This simplifies a lot mounting the projector into the frame. Furthermore, adjusting the projector in the frame is more precise with less unwanted play.