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Sony XDCAM EX Pro Handhelds
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Old November 2nd, 2008, 03:50 PM   #1
 
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Question About Phantom Powered Mics & EX3

Having never used a mic that uses phantom power, I have a question.

Using a mic on the EX3 that uses phantom power requires nothing more than switching to +48V, and the mic draws power from the camera's battery is that correct?
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Old November 2nd, 2008, 04:20 PM   #2
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Perfectly correct.
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Old November 2nd, 2008, 05:30 PM   #3
 
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Thanks, Jon.

How much power consumption does a mic put on the battery? Is it significant?
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Old November 2nd, 2008, 06:08 PM   #4
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Nearly none at all. I can't tell any difference with my mic. Bear in mind, a lot of these mics optionally have a battery compartment. A single AA battery can power the mic for weeks.
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Old November 2nd, 2008, 06:57 PM   #5
 
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Originally Posted by Ted OMalley View Post
Nearly none at all. I can't tell any difference with my mic. Bear in mind, a lot of these mics optionally have a battery compartment. A single AA battery can power the mic for weeks.
Thanks, Ted. I'm looking at the Sanken CS-1. It doesn't take a battery. That's why I was asking.
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Old November 2nd, 2008, 07:51 PM   #6
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And I selected the Rode NG-1 because it was small due to no battery compartment. EX3's phantom power does its job and it works well and I don't notice any increased battery draw.
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Old November 2nd, 2008, 09:59 PM   #7
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Jay, this chart is a good place to start to see what brands and models of mics draw in mAh from the phantom power circuits. Some mic pre's are not very robust in their voltage reserves and can cause all sorts of anomolies if they are loaded down with a power-hungry mic.

Sound Devices: Microphone Phantom Powering
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Old November 3rd, 2008, 01:29 AM   #8
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Originally Posted by Jay Gladwell View Post
Thanks, Ted. I'm looking at the Sanken CS-1. It doesn't take a battery. That's why I was asking.
I've got the CS-1 on my EX1. Good combination as the CS-1 is quite short. Get the K-Tek mount made specifically for that mic and all will be good. The mic body is quite short so most of the other mounts will not hold it properly.
Be aware though, the CS-1 has a quite narrow pickup, remarkably so for how short it is.
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Old November 3rd, 2008, 07:02 AM   #9
 
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Originally Posted by Dave Morrison View Post
Jay, this chart is a good place to start to see what brands and models of mics draw in mAh from the phantom power circuits.
Thanks, Dave, for the link--good resource! Just wish I could understand what it was saying. According to the Sanken, the mic's current consumption is <3mA. It sounds good, but I really don't know what it's saying.

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Be aware though, the CS-1 has a quite narrow pickup, remarkably so for how short it is.
That's my understanding. It should work very well for the majority of the work I do.
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Old November 3rd, 2008, 09:48 AM   #10
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Bear in mind, there are two different K-Tec styles - the regular and the short. The short one has the brackets much closer together and that is what you'll want for your mic.

K-Tek | Camera Shoemounting Shockmount | K-CAM-SSM | B&H Photo
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