DIY: A Pentax Underwater Case
The Lens
If you manage to find the original 28-70mm lens (which is like a normal A pentax lens with additional gears on the focusing, zooming, and aperture rings) and do not want to modify your camera, you need to dismount outer part of the aperture ring. This is so that the lens will fit in the case together with the (larger) DSLR.
In figure 7 you can see the lens before and after the gears were removed from the aperture ring, and in figure 8 you can the part itself.
7.
8.
