Thanks Rob, this helps a lot. Using a pair of switches makes it easier. I'm gathering from the trap focus discussion that separating the two functions isn't a problem. For most of what I intend to do with this rig I will probably be using a wide angle lens set at hyperfocal distance.

At 8:41 AM +1000 6/16/05, Rob Studdert wrote:
On 15 Jun 2005 at 12:44, Alan P. Hayes wrote:

 I had been wondering about that, and also chafing at the shortness of
 the cable on mine, so I opened it up, and lo and behold, there's this
 giant reed switch (2" long) in there!

 Anybody know why they use such a big one? And what more compact
 gadget could be substituted?

 I'm wanting to make a giant monopod out of a painter's extension pole
 and it would be really cool if I could incorporate the switch into
 the pole somehow.

I've never seen inside the remote but my guess is that they incorporate a reed
switch to reduce contact bounce. I made my own remote and used switches with a
very positive click so as to avoid partial contact or bounce.

You should have little trouble building a long wired remote, following is a
part of a post of mine from June 04 relating to building a *ist D remote:

I found a very inexpensive source for suitable pre-moulded cables in a
universal hands free mobile phone kit which uses the 2.5mm stereo plug (AU$1).
I cut the mic and earpiece off, found some suitable momentary switches and a
small piece of Vero board. I shaped the board and fitted the switches, I then
soldered it and covered the assembly in epoxy cement to smooth the surfaces and
to strengthen and protect it.

http://home.swiftdsl.com.au/~distudio/temp/_igp4669.jpg

It works well, the red button is the shutter and the black AF. It's perfect for
inclusion in my pack as it's just over 16mm x 29mm x 11mm excluding the cable.
It has no shutter lock however I really don't need one in this case (but it
would be really easy to incorporate one). Total cost about AU$5.00 excluding
labour :-)

I intend to simply modify a Cable Switch F by fitting one on these cheap cables
as my studio bound cable release.

Cheers,


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998


--
Alan P. Hayes
Meaning and Form: Writing, Editing and Document Design
Pittsfield, Massachusetts

Photographs at
http://www.ahayesphoto.com/americandead/index.htm

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