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I'm using the 174 and getting good results with no fixed pattern noise. Generally imaging at either 15m or 11.5m depending on seeing conditions. That's with a 14" SCT. On Mars I am getting something like 65fps in each channel and Jupiter is about 50fps in red and down to 44fps in blue. It depends on focal length as light drop off is pretty savage at around 15m.
I have not done any solar work for so long, but the 174 would run pretty fast on that, but not as fast as the 290.
I don't have any direct experience with the 290 or 183. The pixel size worried me on the 290 and hence why I did not buy it.
Point Grey is way too expensive to consider. I was getting some discount from them using my images to advertise and even at that price it was ridiculous. Their electronics are good but not that good to justify their pricing. I have not used Lumenera for many years so would not know what their products are like anymore. Once again though probably too expensive.
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