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F65 & Arri SXT - Shutter Question


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#1 Carlos Herrera

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Posted 31 August 2017 - 11:16 AM

Hi everyone!

 

I was reading that the Arri SXT and Sony F65 use Mechanical shutters, while other cinema bodies have rolling and global shutters. What exactly does the phrase "mechanical shutter" mean in relation to these cinema cameras?

 

I'm pretty confused, since I thought there was only global and rolling shutters.

 

Sorry for such a naive question; but I would like to know :)

 

Thank you!

 

-Carlos


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#2 Jay Young

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Posted 31 August 2017 - 12:03 PM

Those cameras use physically spinning shutter disk in front of the sensor.  The Arri sensor is still a rolling shutter sensor, however the spinning mirror shutter negates a lot of the wobbly effects.  This also allows the use of optical viewfinders.


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#3 Stuart Brereton

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Posted 31 August 2017 - 12:03 PM

A mechanical shutter is what is found in film cameras, and a couple of high end digital cameras.

 

https://en.wikipedia...ry_disc_shutter


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#4 David Mullen ASC

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Posted 31 August 2017 - 12:06 PM

The ARRI Alexa Studio has a mechanical shutter and an optical viewfinder, not the Alexa SXT.


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#5 Carlos Herrera

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Posted 31 August 2017 - 12:40 PM

The ARRI Alexa Studio has a mechanical shutter and an optical viewfinder, not the Alexa SXT.

 

Oh, I see. Thank you!


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#6 Carlos Herrera

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Posted 31 August 2017 - 12:43 PM

A mechanical shutter is what is found in film cameras, and a couple of high end digital cameras.

 

https://en.wikipedia...ry_disc_shutter

 

This was a helpful link. Thanks!


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