The show centered on an apprentice wizard named Kryspen, who was sent from the middle ages to present day 1979 to learn about the modern world. Hocus Focus was an American children's television series that aired on Nickelodeon from 1979-1981. If you want it to be fully automatic - so you can rely on it being in focus without looking at the viewfinder, that's a different matter - how will the Arduino know what the desired range is? But I suspect a servo should be adequate unless you want very high precision of the focus ring position. This article has been tagged as Needing work due to its lack of content.
I'm sure some sort of servo setup would be adeqate. Hocus Focus featured an apprentice wizard who magically time traveled forward from the Middle Ages named Kryspen, who worked in the film department of a public library, who, along with his shape-shifting pet named 'Oulak', played short films.
Hocus focus axis1 full#
If you are doing it by eye then I don't see the need for much precision in the system as long as you can be sure it can turn the focus ring through it's full range. I'm still not clear from your comments whether you determine "in-focus" manually (by eye - eyeally?) or whether you want the system to "know" that it must turn to (say) 175deg for a focus of 6ft. Commercial stuff could use any sort of motor because it's worth their while spending money on system design and software to save a few pennies in the cost of the hardware.
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