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Old 16-01-2014, 08:42 PM
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RickS (Rick)
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RickS is offline
Join Date: Apr 2010
Location: Brisbane
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Originally Posted by alpal View Post
OK fair enough - a dose of reality for me.

It makes you wonder why the camera makers don't try
their best to make the lightest possible cameras?

The sensor chip only weighs a few grams but the camera etc can weigh 5Kgs.
Some of the camera manufacturers do make fairly small, lightweight cameras. Starlight Xpress and QHY are examples I'm familiar with but there are probably others. However, if you want a big sensor and deep, well regulated cooling then you need a larger camera with multi-stage Peltier, fans and heatsinks. Then you need large filters to minimize vignetting (at least 7 of them) and a rigid filterwheel to avoid tilt. That all comes at a cost in weight.

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