Submitted by one of our readers in the comments section [Thanks Jerry]. Here's an interesting video on a DIY Lego follow focus from YouTube member havok2. Small, Lightweight and stable. It is attached directly to the lens, and variable sizing helps to adjust for other lenses. Taking it even further, there's a complete 3D Rendered video tutorial on how to put everything together. Additional photos can be found via slideshow https://slideshow.havok2.imageloop.com/en/index.htm. To help you get a better idea, you can check out the video description, questions, and additional comments at the video page.
3D Rendered Build Video
Cyberskrimps
That def would help, I was hoping it was just a kit but I guess you have to get each piece separate. If you ID all the parts on the Lego page def list them.
PixilTV
Can any one id all the parts? For https://shop.lego.com/PAB/
3pointedit
Oooh, I know someone with an old VW beetle, I know they are good for chassis, maybe we could just cut and shut a little...
homing
Sweet !
I've done something similard with old mecano parts
More info here:
https://www.cinema5d.com/viewtopic.php?f=75&t=8337
Rabi
I've got a massive Lego collection from when I was younger; it's tempting to break it out and see what I can do...
Kay O. Sweaver
Is there anything LEGO can't do. LOVE this!
3pointedit
That is brilliant, if I had not sold all my lego upon leaving home. But at the cost of Lego technic these days I think it's cheaper to buy the real thing!