The combination of data from different OTAs with different focal lengths and different pixel resolution works very well. Although I didn't collect the data simultaneously, I did combine data from my Esprit 100 with data from a commercial 16" Planewave CDK (
https://www.iceinspace.com.au/forum/...d.php?t=169160). Like you've mentioned, it would have been better if I'd used rgb data from the Esprit and luminance data from the CDK.