Sony have some new 2nd Gen Pregius CMOS sensors which are starting to make their way into commercially available cameras. In particular, the IMX250/IMX264 looks good - 5MP, QE of about 70% and very low read noise (looks to be about 60% lower than the 1st Gen Pregius IMX174).
I wonder if ZWO, QHY etc have plans for an astro version of this sensor. Combined with active cooling i think it would be a good contender to apply to deep sky luck imaging at shorter focal lengths of say 1m.
more info here:
https://www.ptgrey.com/sony-pregius-...mos-technology
thoughts?