I’m interested in buying a dedicated EAA camera for use with my kids and at outreach events. Also I’d like to generate videos for lectures (although video capabilities are not essential).
Note I already have a QSI 683 for AP.
What are users opinions on the best options in 2019? Is the infinity now “yesterday’s” technology or have I got that wrong?
I'm not sure exactly what makes a camera "easy to use" in another person's situation.
For myself I want a fairly generous FOV with the combination of the sensor and OTA and a simple connection.(few cables). The generous FOV means it is easier to find stuff and to track it. Oh, and I want it to do what I need or it is frustrating and does not put me at ease.
The Infinity software is probably about the easiest software to use from what I've seen. Pretty capable despite its ease of use. An expert with SharpCap will see more/better and if it will bug you to not get quite everything available then SharpCap might be easier - but for public outreach I'm guessing you'll find the Infinity software a better choice.
The Atik Infinity camera has a pretty awesome form factor for use with some of the fork-mounted SCTs and similar. I don't think anything else comes close. State of the art in that regard IMHO. The single USB cable connection is also an "easy" feature IMO.
However, the Atik Infinity's sensor is rather noisy with large pixels. This means a relatively poor SNR and for a lot of OTAs you'll be under-sampling as well. The sensor is also small which doesn't make it out-dated but makes the FOV smaller and I consider small FOVs to be difficult rather than easy.
You might want to look instead at the Atik Horizon. You still get to use the Infinity software but you get a bigger sensor with smaller pixels, you get a high-resolution image, etc. If you use the cooling feature you'll need to run a power cable as well as the USB cable to the camera which isn't likely a deal-breaker. But if you don't want to use cooling then you can run just the USB cable.
Now all that said? Much of what makes a system "easy" is the software.
ZWO is developing their own proprietary software. Since SharpCap works very well with SharpCap my best guess is that ZWO is planning to develop their software as a simple/easy software package for those of us who don't want to become experts at using SharpCap. So the odds are good that the ASI Live software from ZWO will soon be very easy and very competent and will make you very happy with a ZWO camera.
But right now the ZWO software is in beta and is thus sort of vapor-ware and the Infinity software is a better bet for ease of use.
If you have a whole lot more money? You could get the Stellina. I consider that to be a camera as there is no provision for use with an eyepiece. Right now it has a limited (but likely satisfying) catalog of targets and the small aperture also makes integration times much longer. I'd really enjoy having one but at a whopping $4,000 it is simply not an option for me at this time.