PC23C with a 35mm Lens

I have a Supercircuits PC23c survellience camera that takes a C/CS camera to lens. I
have an adapter that gets me from C to 35mm but this adapter ends up making the focus
a little off. Is there some adapter that allows variability in the attachment so the
focus is correct?
--
Wayne T. Watson (121.015 Deg. W, 39.262 Deg. N, 2,701 feet, Nevada City, CA)
-- GMT-8 hr std. time, RJ Rcvr 39° 8' 0" N, 121° 1' 0" W

Your mother was right. Wear your hat and sunglasses in the summer sun.
This is especially true if you're older. -- NYT Science Section, May 2004

Web Page: home.earthlink.net/~mtnviews
sierra_mtnview -at- earthlink -dot- net
Imaginarium Museum: home.earthlink.net/~mtnviews/imaginarium.html

In article k.net, W.
Watson wrote:

I have a Supercircuits PC23c survellience camera that takes a C/CS camera to
lens. I
have an adapter that gets me from C to 35mm but this adapter ends up making
the focus
a little off. Is there some adapter that allows variability in the attachment
so the
focus is correct?

The difference between C and CS (IIRC) is that C has an additional 5 mm
focal length. This is provided by a little adaptor which, on my PC23c,
is a little black coupler ring with both male and female threads. If
you don't have that black ring in your adaptor chain, add it in.

You can also loosen a set screw and thread out the metal C mount on the
camera body. You can get a few mm that way, or you can go even further
and drop the lens on the floor (retighten the set screw).

--
David M. Palmer (formerly @clark.net, @ematic.com)

David M. Palmer wrote:

In article k.net, W.
Watson wrote:


I have a Supercircuits PC23c survellience camera that takes a C/CS camera to
lens. I
have an adapter that gets me from C to 35mm but this adapter ends up making
the focus
a little off. Is there some adapter that allows variability in the attachment
so the
focus is correct?


The difference between C and CS (IIRC) is that C has an additional 5 mm
focal length. This is provided by a little adaptor which, on my PC23c,
is a little black coupler ring with both male and female threads. If
you don't have that black ring in your adaptor chain, add it in.

You can also loosen a set screw and thread out the metal C mount on the
camera body. You can get a few mm that way, or you can go even further
and drop the lens on the floor (retighten the set screw).

Thanks. I always wondered what the black ring was for. It seemed to have no real
purpose. I'll try to avoid dropping the lens. :-)

--
Wayne T. Watson (121.015 Deg. W, 39.262 Deg. N, 2,701 feet, Nevada City, CA)
-- GMT-8 hr std. time, RJ Rcvr 39° 8' 0" N, 121° 1' 0" W

Your mother was right. Wear your hat and sunglasses in the summer sun.
This is especially true if you're older. -- NYT Science Section, May 2004

Web Page: home.earthlink.net/~mtnviews
sierra_mtnview -at- earthlink -dot- net
Imaginarium Museum: home.earthlink.net/~mtnviews/imaginarium.html

David M. Palmer wrote:

In article k.net, W.
Watson wrote:


I have a Supercircuits PC23c survellience camera that takes a C/CS camera to
lens. I
have an adapter that gets me from C to 35mm but this adapter ends up making
the focus
a little off. Is there some adapter that allows variability in the attachment
so the
focus is correct?


The difference between C and CS (IIRC) is that C has an additional 5 mm
focal length. This is provided by a little adaptor which, on my PC23c,
is a little black coupler ring with both male and female threads. If
you don't have that black ring in your adaptor chain, add it in.

You can also loosen a set screw and thread out the metal C mount on the
camera body. You can get a few mm that way, or you can go even further
and drop the lens on the floor (retighten the set screw).

Hi,

some additional experimenting found that I had to take off the pc23c silver threaded
insert and the plastic insert. To get focus with my (Orion) C/Pentax adapter I had to
put the barrel of the adapter inside the pc23c almost entirely. This C/Pentax adapter
is obviously too long. I would think someone would market one. Actually, the adapter
is probably meant for a variety of cameras. The portion between the adapter and end
of the camera lens has an insert to accommodate other lenses than the Pentax screw
mounts.

Well, maybe finding someone handy with tools that can make a reasonable device is the
way to go. Maybe just a lot of rubberbands to hold the lens in place will do it.
Anyway, I can see that focus is within reason with my 8-135 Pentax zoom lens.

--
Wayne T. Watson (121.015 Deg. W, 39.262 Deg. N, 2,701 feet, Nevada City, CA)
-- GMT-8 hr std. time, RJ Rcvr 39° 8' 0" N, 121° 1' 0" W

Your mother was right. Wear your hat and sunglasses in the summer sun.
This is especially true if you're older. -- NYT Science Section, May 2004

Web Page: home.earthlink.net/~mtnviews
sierra_mtnview -at- earthlink -dot- net
Imaginarium Museum: home.earthlink.net/~mtnviews/imaginarium.html