updated DIY zoom controller

[rocketscience]

I built a couple DIY zoom controllers based on the original. On the 2nd one, I was able to figure out how to spring load the zoom knob.

However, it is no longer a 20 minute project.

http://koodies.home.comcast.net/remotezoom.htm

[Guest]

It's possible to built a remote focus controller ?
what do you think?
Thanks
gio santi

[JonnyMac]

That would require more signals into the camera; unfortunately there is no LANC port on the DVX100 (my only complaint).

[Barry_S]

Very nice design. You can buy spring-loaded potentiometers, though.

[rocketscience]

THat's what I would have thought.. PLEASE please show me a link. Cuz I looked EVERYWHERE. Spring loaded 50K linear knob or slide potentiometer. The only really nice ones I could find were for industrial use (i.e. orders of 1000 minimum), and even then, none were spring loaded.

[Barry_S]

I'll have to ask my father about that--he's an electrical/audio engineer and usually he just sends me whatever parts I need, but I know he has a bunch of good sources for parts in small volumes.

[Barry_Green]

It's possible to built a remote focus controller ?


Not like the zoom controller, no. There is no provision in the camera for remote focus control. The only way to build a remote focus controller would be to attach a motor and gear system that physically turn the focus ring. Obin Olson has designed such a system, and there was someone else here who was working on one as well.

[Guest]

Not like the zoom controller, no. *There is no provision in the camera for remote focus control. *The only way to build a remote focus controller would be to attach a motor and gear system that physically turn the focus ring. *Obin Olson has designed such a system, and there was someone else here who was working on one as well.

Where I can find the project of OBIN OLSON ? Thank you
Gio santi

[Barry_Green]

http://www.uemforums.com/2pop/ubbthreads/showflat.php?Cat=&Number=28786&page=&view=&sb=5&o= &fpart=1&vc=1

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3319&item=38078051 43&rd=1

[Highway_26]

First let me say that I know nothing about all of this.

I was intrigued by your idea of a spring loaded potentiometer. I looked online for places that sell them and came up with nothing. So I started thinking, what about a jog/shuttle mechanism on a DVD player, or a tuner knob on an older car radio. Those do essentially the same thing, spring back to zero when let go. Again let me clarify that I don't know a thing about these little gizmos, so I could be on the wrong track all together.

Let me know what you think, or if these ideas are even possible.

[gio_589]

I have a DVX 100A and a Sony PD 150 also.
Do yuo know a project about a remote zoom and focus controller for this camcorder.
Thank you

[HansK]

PLEASE please show me a link. Cuz I looked EVERYWHERE. Spring loaded 50K linear knob or slide potentiometer.

What if you canabalized an inexpensive joystick? They come with two spring loaded potentiometers.