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The point grey research cameras (Grasshopper Range) have better sensitivity and less noise than the imaging source cameras, I have used both for solar and the PGR cameras are definitely the way to go.
I currently have a grasshopper and GH3 camera in firewire 800.
The newer USB3 model can capture in 12bit mode at the same speed as in 8bit mode which the FW800 model cannot, so I would get the USB3 camera.
For that scope, get the biggest chip you can, you don't want to be reducing the disc optically, and mosaics are a pain in the bum!
If she has access to firewire800, then I can loan her a camera to try out. Most Macbook Pro and some imacs and mac minis have FW800 built in.
If they are using a desktop PC, I can loan out a FW800 PCIe card as well.
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