Motorized adjustable ND filter + Bulb ramping + Panning


New time-lapser
Just modified my old DIY motorized pan tilt system to taking the day to night time-lapse.
My motorized pan tilt system is controlled by an Arduino based controller.
I have included the bulb ramping function in the controller a couple of weeks ago.
This time another low-tech function is also included :)
Don't know whether anybody has tried this approach.
A piece of 2-400 adjustable ND filter is mounted on the lens.
And this filter is turned by a small stepping motor.

Below is the first test shoot.
Quite a mess, a bit too late for the day to night time-lapse :)

And here are the gear.
1s.jpg 2s.jpg 3s.jpg 4s.jpg

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