On 13/09/06, K.Takeshita <[EMAIL PROTECTED]> wrote:
> On 9/12/06 5:03 PM, "K.Takeshita", <[EMAIL PROTECTED]> wrote:
>
> > 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.
>
> Someone questioned if all lenses could be sealed.  That's a good question
> because the retaining the O ring on a flat surface might be a bit of
> problem.  Machining even the slightest dovetail on the mount surface would
> be costly (unless they use two plates), and taking a good look at the
> sealing diagram in Steve's Digicam, it might also look like a
> circumferential seal in which case the installation and the replacement of a
> rubber O ring is very easy.  O ring on the mount surface might also be messy
> when it breaks.
> If circumferential, the lenses have to have some sort of extension collars
> to cover the seal.

I didn't get to see this famed leaky release but looking at the huge
press kit photos I see no gasket of any kind on the very visible
mount.?

-- 
Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://home.swiftdsl.com.au/~distudio//publications/
Pentax user since 1986, PDMLer since 1998

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