Focus demand on Fujinon LA16x8BRM

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Jörg Lohner

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Focus demand on Fujinon LA16x8BRM

PostTue Jul 12, 2022 8:56 am

Hi everybody,

I am thinking about buying a URSA Broadcast G2 with the bundle lens Fujinon LA16x8BRM. I just have no idea if the BMD focus demand will work with this lens as the camera manual says you do need (Fujinon) lenses with its name ending on RD instead of RM for focus servo. On the other hand in the introduction video to the broadcast G2 at about 32m30s Grant Petty is controlling iris and focus on this camera/lens setting with a switcher. So the lens can't be manual only? I am confused :?
Thanks
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rick.lang

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Re: Focus demand on Fujinon LA16x8BRM

PostWed Jul 13, 2022 3:31 pm

It’s a little black magic:

Focus Control Issues with Blackmagic URSA Broadcast 4k
https://r.tapatalk.com/shareLink/topic? ... source=app
Rick Lang
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Mike Ambrose

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Re: Focus demand on Fujinon LA16x8BRM

PostWed Jul 13, 2022 4:03 pm

Huh, thanks for sharing that link. I've known about the Macro mode workaround since I bought mine a few months ago but never really knew the why behind it.

Also interesting that using the focus demand bypasses the need for the workaround.
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Jörg Lohner

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Re: Focus demand on Fujinon LA16x8BRM

PostFri Jul 15, 2022 8:36 am

rick.lang wrote:It’s a little black magic:

Focus Control Issues with Blackmagic URSA Broadcast 4k
https://r.tapatalk.com/shareLink/topic? ... source=app


Hi Rick,
thanks a lot for the link. Very helpful! All the best

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