P3D Re: Re: P3D Re: Re: P3D Re: Filters on stereo cameras: common solutions requested

[Paul Talbot <ptww@xxxxxxxxx>]

Linda Nygren wrote regarding the optional set of "sunshades and filter
holders" for Realists (ST-54 Sunshade):

> These have a fairly large slip-on type attachment
> which goes around the focusing ring as well as the lens itself.

A clarification: The Realist of course has a focus adjustment wheel
on the right hand side of the camera and it would not do any good to
put a filter there.  ;)  The ring around either lens of a Realist
adjusts the aperture; that is where the sunshade/filter holder goes.

> I don't have a Revere, but the instruction manual shows "filter
> retaining rings" apparently built into the camera which it says are the
> right size to accept Series IV filters, which I presume are similar to
> but smaller than the Series V filters. If you check your camera closely,
> I presume you will be able to unscrew these retaining rings from the
> front of each lens and you will see what we are talking about.

Funny you should mention that...I checked my Revere again this morning
and managed to get the retaining ring unscrewed.  When I first checked,
in a sleepy state, I couldn't get anything to turn separately from
the aperture/shutter speed adjustment rings.  But it turns out that
if you hold those adjustment rings and turn the thin retaining ring
separately, it does unscrew.  It may stick a bit at first.

> If they
> were missing, you would see the threads.

Correct.

> If you
> cannot find Series IV filters, you might be able to find an appropriate
> slip-on adaptor for series V or Series VI filters.

A step-up adapter is another possibility.

If Mark Dottle is listening, perhaps he could update us on the status
of his attempt to design a filter holder to allow the use of Cokin
series P filters with his Realist.

Paul Talbot


------------------------------