Control of electric zoom lens

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katsuwo

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  • Joined: Tue Dec 22, 2020 7:43 am
  • Real Name: katsu minegishi

Control of electric zoom lens

PostTue Dec 22, 2020 7:56 am

Please tell me about the camera control SDK of BPCC4K.
I'm considering building an automated motion photography solution at BPCC.
The system uses an electric zoom lens to control zoom expansion and contraction from a PC or Raspberry pi.

I noticed that the SDK manual contains the command "Set absolute zoom".
Does this command move the electric zoom?
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Kim Janson

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  • Joined: Wed Jul 15, 2015 6:54 pm
  • Location: Finland

Re: Control of electric zoom lens

PostTue Dec 22, 2020 4:03 pm

Yes, with that you can command it to given focal length. Do not expect great performance of the electric zooms tough. At least this Panasonic lens is not great.

See 1:55



The focusing problem mentioned there should now be fixed, but have not tested it.

Here is testing the same lens on P4K and iPhone / Apple Watch control 1:15


viewtopic.php?f=2&t=128096

Have you already established the connection, after that the control should be pretty easy, just follow the documentation and test.
LeViteZer Smooths the movement, www.levitezer.com
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katsuwo

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  • Real Name: katsu minegishi

Re: Control of electric zoom lens

PostTue Dec 22, 2020 4:19 pm

Thank you for your reply, kim.
I understand that the SDK can do what I want.
I plan to purchase Panasonic's 175mm zoom and BPCC 4k in the near future and build the system.
Thank you for your valuable information

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