Re: [OM] Pentax screw mount to OM adapter?

[Lex Jenkins]

Tests by Modern or Pop Photo several years ago demonstrated that these 
adaptors which contain optical elements to ensure full-range focusing 
capability do not significantly impair lens resolution.  I would assume that 
performance would depend on the quality of the optics in the adaptor, as 
with teleconverters.
Lex
===
> From: "Keith Berry" <k.berry@xxxxxxxxxxxxx>
> Subject: Re: [OM] Pentax screw mount to OM adapter?
> Date: Tue, 1 Aug 2000 18:32:03 +0100
>
> James Olson wrote:
>
> > After seeing a few neat pentax screw mount lenses, i was wondering if an
> > adapter exists to mount pentax screw mount lenses onto OM bodies?  i 
> have
> > seen pentax SM to canon FD, etc...... but does an OM adapter exist?
>
> There's one currently advertised by www.mxv.co.uk for UKP 18, Exc+
> condition, but as I recently discovered, just because they advertise it, it
> doesn't mean they still have it.
> I believe that because there is insufficient room to provide infinity 
> focus,
> there has to be an optical element present in the adapter, which may well
> reduce the lens' performance.
>
> Regards,
> Keith Berry
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