Ok. Based on the feedback I've received, I've managed to make it work:
* the previously cited articles are correct, and they work on the
K-30; thus based on the schema below, to focus connect A and B, and
for trigger both A, B and C together (only B and C doesn't work);
http://www.photosig.com/articles/1088/CS-205-schema.gif
* for the focus to work it must be enabled in the custom functions
menu (search for the entry with "remote control" in the name);
Ciprian.
On Tue, May 14, 2013 at 3:54 PM, Ciprian Dorin Craciun
<ciprian.crac...@gmail.com> wrote:
> Hello all!
>
> I was just wondering if anyone managed to build a home-made
> variant of the cable release for the Pentax K-30?
>
> I've found the following links:
>
> http://www.hobbymaker.narod.ru/English/Articles/cable_sw_eng.htm
> http://poildegris.free.fr/electronique/CS205/
> http://www.photosig.com/articles/1088/article
> http://www.digisniper.com/photography/tutorials/advanced/
>
> However it doesn't seem to work for me...
>
> From what I've seen I get 3V voltage between the middle contact
> and "ground" (contact A and B in the image below), but no voltage
> between C and B, or A and B for that matter. (And just coupling A and
> B doesn't either focus or shot the image, neither does C and B. I
> haven't tried all three together.)
>
> http://www.photosig.com/articles/1088/CS-205-schema.gif
>
> Any hints here?
>
> Thanks,
> Ciprian.
>
>
> P.S.: Initially I've sent this email to the Pentax users mailing
> list (Yahoo), but so far no answers (granted since yesterday), and I
> hope I have more luck on this one. :)
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