On 9/12/06 4:57 PM, "K.Takeshita", <[EMAIL PROTECTED]> wrote:
> If it's on the mount surface, any lens can be sealed. It may be bit harder to > retain the ring in place but O rings are usually very easy to replace. If it's on the mount surface, it could be a very thin rubber ring, like 1mm dia which is more than enough to seal against the rain drop etc that has no pressure. It would be a dovetail-like groove to which the rubber O ring is pushed in and only a very slight amount is protruding outside. When lenses are attached, it is compressed into a groove and become a seal. Hope my explanation is comprehensible :-). Ken -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
