Carbon is the material of the future and is optimal for manufacturing underwater housings.
It´s quite fascinating that BS Kinetics offers special solutions for cameras like the Sigma SD1 Merrill which is nearly overseen by the other competitors.
BS Kinetics equipment convinced me - it´s affordable for ordinary wages and offers reliability and user friendliness on the highest level.
One more positive aspect is BS Kinetics effort to place the domeports correctly.
With these domeports I was able to get best results with my wide angle zoom lens with 8-16 mm from Sigma or the 7 - 14 mm lens from Olympus.