Oh, that's not a screw, that's the lever that slides the locking pin
down so you can unmount the lens from the adapter. It serves the same
function as the locking pin on your Pentax camera mount.
—M.
\/\/o/\/\ --> http://WorldOfMiserere.com
http://EnticingTheLight.com
A Quest for Photographic Enlightenment
On 26 January 2011 02:05, Dario Bonazza <[email protected]> wrote:
> Hi Miserere,
>
> Look at the third picture here:
> http://cgi.ebay.it/Pentax-PK-Lens-To-Micro-4-3-m4-3-Adapter-GF1-E-P1-EP2-/290480031613
> It's that small screw on the m4/3 bayonet. I already own such an adapter and
> I plan to use FA lenses on a Panny GF1 (bought secondhand and arriving here
> within a couple days), just for fun.
> Prior to make damages or just have misoperation, I'm asking about that screw
> and when/how to use it, as I cannot find web resources explaining that.
>
> Cheers,
>
> Dario
>
> ----- Original Message ----- From: "Miserere" <[email protected]>
> To: "Pentax-Discuss Mail List" <[email protected]>
> Sent: Wednesday, January 26, 2011 1:54 AM
> Subject: Re: For those using Pentax lenses on micro 4/3
>
>
> I have no idea what you're talking about, Dario. Is it maybe a stop
> DOWN screw? I seem to remember some early m4/3 adapters having a screw
> (as opposed to a ring) to stop down lenses, although I think it was
> only for rangefinder lenses with short registration distances (and
> thus very thin adapters).
>
> If you plan on using DA lenses, buy an adapter like the Novoflex that
> has a (blue) stop-down ring. If using FA or earlier lenses, just buy
> the cheapest adapter you can find (which won't have a stop-down ring).
>
> Cheers,
>
>
> —M.
>
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