Bern Caughey
Veteran
Would love an even more powerful camera in a even smaller body but wonder if the tech is really there. Just look what it takes to keep an Amira from melting down.
"So what you find inside ARRI cameras is heat sinks. Lots of them. And they’re not randomly glued to any available flat surface, but are an intrinsic part of the 3D design. This is at its most impressive with the ARRI Amira. I haven’t seen inside one before and it’s a revelation. Air is forced by slow, quiet fans through the centre of the camera, which is packed with heat sinks. This cooling core is surrounded by circuitboards.
Inside the camera there’s effectively a battle going on between the heat-generating components and the devices that are there to remove the heat.
ARRI Amira's central cooling system
One of ARRI’s trademark techniques in their modern cameras is to use FPGAs. These increasingly versatile chips are gigantic arrays of programmable logic. You can effectively build your own highly specialised, extremely fast processor with an FPGA, which configures itself to your design at boot-up, when it loads a program that tells it how to behave. The same FPGA can literally behave in two completely different ways by rebooting and loading different operating code. More to the point, with FPGAs, new and sometimes dramatically improved features can be added to an existing camera with a mere software upgrade.
So FPGAs give a camera manufacturer immense flexibility, but they do run hot. They are just one reason why a camera needs efficient cooling."
http://www.redsharknews.com/production/item/3073-how-arri-makes-cameras-redshark-exclusive
"So what you find inside ARRI cameras is heat sinks. Lots of them. And they’re not randomly glued to any available flat surface, but are an intrinsic part of the 3D design. This is at its most impressive with the ARRI Amira. I haven’t seen inside one before and it’s a revelation. Air is forced by slow, quiet fans through the centre of the camera, which is packed with heat sinks. This cooling core is surrounded by circuitboards.
Inside the camera there’s effectively a battle going on between the heat-generating components and the devices that are there to remove the heat.
ARRI Amira's central cooling system
One of ARRI’s trademark techniques in their modern cameras is to use FPGAs. These increasingly versatile chips are gigantic arrays of programmable logic. You can effectively build your own highly specialised, extremely fast processor with an FPGA, which configures itself to your design at boot-up, when it loads a program that tells it how to behave. The same FPGA can literally behave in two completely different ways by rebooting and loading different operating code. More to the point, with FPGAs, new and sometimes dramatically improved features can be added to an existing camera with a mere software upgrade.
So FPGAs give a camera manufacturer immense flexibility, but they do run hot. They are just one reason why a camera needs efficient cooling."
http://www.redsharknews.com/production/item/3073-how-arri-makes-cameras-redshark-exclusive
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