I've been doing 1 hr trial images testing the WhiteCat51mm performace on a iOptron Skyguider Pro. While I would get more color and resolution with my 130mm this little guy is doing quite well for itself. I admit the PI processing was a challenge with the full moon,no filters and a Canon T3i. I was considering taking more images but clouds and a tree convinced me I was done.
180 x 20 sec
Max accepted FWHM 1.5