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Type: Posts; User: Robert Hofmeyr

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    I'm still not understanding why there would be a...

    I'm still not understanding why there would be a large potential difference between the ground of a monitor and that of the camera if they are powered independently. But if this is the case, wouldn't...
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    I looked at page 31. It does indeed refer to two...

    I looked at page 31. It does indeed refer to two independently powered devices connected by a video cable and having different ground voltages. But I think the voltage difference here is minimal...
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    Thanks Amarin!

    Thanks Amarin!
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    Interesting. Thanks Alex. I'm not sure if having...

    Interesting. Thanks Alex. I'm not sure if having 2 different power sources and connecting their grounds via the SDI cable can result in a potential difference across the cable large enough to do...
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    Thanks John. I don't need a 4K signal. Do you...

    Thanks John. I don't need a 4K signal. Do you know if I would still be able to send 1080p video though these devices?
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    I understood that video a bit differently. When...

    I understood that video a bit differently. When the positive pin in a d-tap that is being used to power a monitor is connected before the negative, the SDI cable completes the circuit causing the...
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    On a thread in the Red Komodo Users FB group,...

    On a thread in the Red Komodo Users FB group, this isolator was suggested to prevent this issue: https://www.bhphotovideo.com/c/product/843846-REG/allen_avionics_hd_vit_75_video_isolation.html. Can...
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    Hi Alex. Can you explain a bit more or provide a...

    Hi Alex. Can you explain a bit more or provide a link to more information about grounded vs non-grounded batteries? I was not aware that this was a thing. I was under the impression that the main...
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    Yeah, I've seen that this happens on other...

    Yeah, I've seen that this happens on other cameras. But I think on Komodo it is more serious because it only has SDI out (I guess wifi or the link adapter count as video outputs, but neither seems to...
  10. I will probably use a brad harrison plug since I...

    I will probably use a brad harrison plug since I don't trust cig sockets either. However, I have found with cheaper and lighter pure sine inverters (like the one I use when travelling and using other...
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    Shit. So you were following protocol. This makes...

    Shit. So you were following protocol. This makes me nervous. I guess at least we can always use a phone via WiFi as a monitor in an emergency. Hope Red sorts you out quickly. Keep us updated.
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    That's bad news Michael. Thanks for letting us...

    That's bad news Michael. Thanks for letting us know. Hope you get it sorted asap. Do you know what was happening as the failure occurred? Was one of the batteries being swapped? Was the camera on?
  13. You must get it working! It's the best feature....

    You must get it working! It's the best feature. Strange you've had the same issue on two cameras. I've never had an issue and I use pre-record a lot. I do usually secure format, but I have...
  14. Thanks Blair. Edit: after a bit of searching I...

    Thanks Blair.

    Edit: after a bit of searching I decided to go with a simple 12v regulator with no readout or adjustable output:...
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    Hi Blair. I think the ground loop is formed when...

    Hi Blair. I think the ground loop is formed when powering the monitor and camera from the same source. If you power the Komodo from a v-lock, then plug in a monitor via d-tap or 2 pin, the +ve could...
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    I think I and others are looking for a bit more...

    I think I and others are looking for a bit more clarity on this warning. Does it include dedicated monitor batteries, or just batteries that power the camera? Do we need to disconnect the SDI before...
  17. :) yeah. Animals can be very bad at taking...

    :) yeah. Animals can be very bad at taking direction.

    I've never had an issue with pre-record. Do you secure format your mags?
  18. I'm also curious about this. I shoot a lot from a...

    I'm also curious about this. I shoot a lot from a vehicle and prefer to leave the camera running so I don't miss things while waiting for the camera to boot. Until now, I've been powering via the...
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    If the problem is connecting the +ve before the...

    If the problem is connecting the +ve before the ground, thus causing the ground to loop via the monitor to the SDI, then there surely can't be any issue if the monitor is powered by it's own battery?...
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    Seems mad to me. According to Red's manual,...

    Seems mad to me. According to Red's manual, swapping a battery on the rear of the camera requires that you shut down then disconnect the SDI cable then replace the battery then reconnect the SDI then...
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    Do we need to unplug SDI even if we are changing...

    Do we need to unplug SDI even if we are changing the battery on the monitor only?

    What about swapping out a BP-9 on the back of the Komodo. eg replacing a depleted battery while the other battery...
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    I do think reds recommendation is overcautious....

    I do think reds recommendation is overcautious. Pretty sure when attaching a battery to a monitor it won't cause a ground loop and fry the SDI. Would be great to have confirmation though.

    I am...
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    Not sure if this is the case. Red advises to...

    Not sure if this is the case. Red advises to connect power first, then SDI, then boot.

    Christoffer, according to the Komodo manual we need to "Always connect the DC power cable (or batteries)...
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    Does the sequence matter when using a battery...

    Does the sequence matter when using a battery powered monitor? I thought it was just for monitors powered from the same battery as the camera.
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    Not sure about the shots with the same clip...

    Not sure about the shots with the same clip number, but the wav is how Red handles audio when you are shooting off-speed. It is a shorter duration because you were shooting slow motion.
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