The hardest part is holding the camera steady over the eyepiece. While there are some iPhone mounts available, for this latest attempt I used a tripod to hold my iPhone steady looking down through the eyepiece.
My previous attempt is on the left, and I actually took it during my "first light" night out with the scope, and I took it handheld without a tripod. On the right, my latest attempt with the camera on a tripod. I took a 30 second video and then took a screenshot of the best frame. (Yes, I do plan on stacking the video in Registax, but after a few frustrating attempts I called it a night. Not sure if the image is too small to find alignment points, or if the whole thing is in the wrong format).
|Saturn with iPhone through eyepiece on Meade 285 refractor|