After having saved up for more than two years the meager monthly astronomical budget allowed by my wife, I finally found myself getting close to having enough money to get one of the variants of the 16200 sensor that I've had my eye on to take better advantage of the huge image circle of my Tak FSQ-106N than the Nikon D5500 I am currently imaging with. The variant I had particularly in mind was the QHY 16200A, it seemed the best bang for the buck.
Then, just recently along comes QHY and ZWO with two color cameras based on the full-frame Sony IMX128 and and IMX094 sensors to throw me all in a tizzy!!
ZWO has the ASI128MC Pro and ASI094MC Pro, both for $3600 (introductory price I believe)
QHY has the 367C (the IMX094) for $4400, and the 128C on sale for $3000 at the moment.
The QHY16200A, by comparison, is $4000 plus filters, but also looks to be an amazing camera.
So now I'm stuck in a quandary. I know the whole OSC vs. mono thing has been done to death and is my personal choice, but regarding the two OSC cameras: I am unsure of the pros and cons of the IMX094 vs. IMX128. The IMX094 chip has a higher resolution (36MP) and a pixel size which I think is a bit better mated to the FSDQ106 than the IMX128 sensor, but on the other hand the 128 has a larger well depth. That special offer for $3000 is also a consideration for sure. I need to make up my mind before the end of the year, at which point QHY's introductory price for the 128C ends.
Camera Price Pixel Size Effective pixels Area Well Depth Readout noise
QHY 128C $3000 6 um 24 MP 36mm x 24mm 74 ke- 2.7e @ unity
QHY 367C $4400 4.9 um 36 MP 36mm x 24mm 56 ke- 2.4e @ unity
QHY 16200A $4000* 6 um 16 MP 27mm x 22mm 41 ke- 10e typical
I am leaning towards the QHY128C, with its significantly lower cost than either the 16200, QHY367C, or either of the two ZWO offerings. And given the tradeoffs of price, resolution, and well depth, I think at the current price differential the 128C wins over the 367C/ASI094MC Pro. But I am definitely new to the CCD/CMOS dedicated astrocamera world and would appreciate comments regarding the pros and cons of the cameras I mentioned.
Clear skies all!