just another reason why the screwmount
Pentax lenses are superior. They all
have a manual aperture switch built into the lens
( at least the auto aperture ones do).
JCO

> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Ayash Kanto Mukherjee
> Sent: Saturday, August 10, 2002 4:00 AM
> To: [EMAIL PROTECTED]
> Subject: Re: K mount bellows II requires dual cable release?
>
>
> Hi,
> I think that you are right. The dual cable release is required to close
> down the aperture and open the shutter simultaneously.
>
> If the lens mount of the bellow unit has that lever which causes the lens
> aperture to remain open even if you rotate the aperture ring higher
> f/numbers, then it won't allow the aperture to close down. Or in other
> words, no manual diaphragm.
>
> Perhaps, Boz can tell us much better about this.
>
> Cheers,
> Ayash.
>
>
> On Sat, 10 Aug 2002, Sid Barras wrote:
>
> > Hi,
> > I'm looking at a pentax bellows II unit on ebay. It does not
> include the
> > dual cable release. Am I correct in saying the cable release is
> > required, or otherwise the lens will only function wide open?
> Is that right?
> > thanks Sid
> > -
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