Hey, good idea. I used to have a slide copier made by Honeywell that
used a Pentax screw mount bellows and that is what we used for slide
duping. I had forgotten about those type adapters.

Walt

On 2/6/08, J. C. O'Connell <[EMAIL PROTECTED]> wrote:
> Dude, use the "mount adapter K" on the body end and get a M39 to M42
> adapter for the lens end. Then you can use superb but dirt cheap
> high end 39mm mount enlarging lenses as the taking lenses. Schneider,
> Rodenstock,
> El-Nikkor, etc. get at least 100mm focal length or you may not be able
> to get infinity focus if you need that. I use 80, 105, 135, and 180mm
> enlarging lenses for macro. One thing you need to be sure of is that
> the enlarging lenses you get have many iris blades (8 or even more) because
> the
> bokeh will really suck with anything less. Seems like the older enl. lenses
> tend to have more blades and give the best bokeh. Sharpness is fantastic
> at macro ranges. I had to make a custom mount for the 180 using a M42
> T mount ring if I recall correctly. In that case I dont use the M39 to M42
> ring.
> jco
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark
> Roberts
> Sent: Wednesday, February 06, 2008 7:16 PM
> To: Pentax-Discuss Mail List
> Subject: Re: Pentax Bellows
>
>
> Walter Hamler wrote:
> > I just bought a Pentax Bellows from an internet telescope source. The
> > pic tells that it is a screw mount version. Are there special adapters
> > available to convert these to K-mount, or do I just get the M-42 - K
> > adapter ring for both ends?
>
> Get a standard M42-K adapter to mount the bellows on the camera. Then get an
> M42 *reversing ring* to mount lenses on the bellows :)
>
> I did this recently with a cheap third-party M42 bellows. Works great:
> http://www.robertstech.com/blog/?p=16
>
>
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