[Foto] Minolta kerdes

[Szabo Endre]

Beideztem az egeszet, latom meno tema lett.

En anno cd hangkabel jackdugojabol csinaltam, + mugyanta 
kiontes.

 
6.5     MAKING YOUR OWN REMOTE RELEASE CORD.


The meaning of each pin is :

 Back of the camera               Front of the camera

                      o   o   o
                      C   F   S

        C for Common
        F for Focus
        S for Shutter release.

The way to activate focus is to connect C and F, and for 
the release, C
and S.

But there is still a problem : The question of the switch 
is not so
trivial :  The Minolta remote cord allow, on the same 
switch, to focus,
and if pushed a bit more, to release the shutter. And to 
lock the
switch with shutter released for long pause. It's possible 
to implement
this with 2 switches, but what appens if the focus switch 
is held when
the release switch is pushed ? Or if the focus switch is 
held while the
shutter is released in pause mode ? I don't want to try 
this sort of
experimentation on my camera.

Scott, did you find a switch with all these functions ? or 
do you have
2 switches ?

Anyway, for the connector, I had another solution from the 
news : It's
to buy the cord which connect the camera to the IC R1 
infrared remote
device. The only problem is that this device only deal with 
the shutter
release and I'm afraid that this cord only have two pins 
connected.


From: SCOTTK at MAINE.maine.edu (Scott Kimball)
Date:    Wed, 20 Jul 94 16:55:56 EDT

The question was asked, Did I find a switch like Minolta 
uses, or did I
use 2 switches.

The answer: I used 2 switches in the following way:

A push-on, push-off single pole, single throw switch 
enables focus.  A
momentary single pole, double throw switch de- activates 
focus and
activates the shutter with one push.

 (Pins are drawn in          F    C    S
  incorrect order            |    |    |
  for ease of          |--/--|    |    |
  drawing --     (foc) |SPST      | ___|
  C F S is the         |--------|_|_|
  correct order)                SPDT
                                (shutter)

Please forgive the crude drawing. Wired this way, using 
autofocus mode,
you can first press the focus button to enable the 
autofocus.  Then,
when the camera has focused, press the shutter release 
button (the SPDT
button) to switch instantly from "focus" to "fire" (and 
back again if
you use the momentary switch).  If you are manually 
focusing, you need
not first press the focus button, and the shutter will 
still trip when
you press the shutter release.  If you do first press the 
focus button
and the camera is in manual focus mode, nothing happens 
because
autofocus is not on.

In a way, I like a 2 button setup better than a 1 button 
setup, because
there is less chance of accidently firing off a shot. The 
only thing
this doesn't have is a locking feature to lock the shutter 
open, but it
shouldn't be hard to come up with a mechanical method of 
locking the
button down.

As far as experimenting with this and the possibility of 
damaging the
camera, as long as you don't introduce any current into the 
circuit
there won't be a problem.  The only other damage you could 
do is
bending or breaking a pin in the camera socket if you make 
a connector
that doesn't fit well and try to force it.