Hi all, like most everyone else I have that ultra helpful excel eyepiece calculator spreadsheet that I use constantly on my PC to help me decide what eyepiece designs and focal lengths to buy. I’d really like to find something something similar that I can use on my iPad though. There is one app listed in the App Store but it’s quite outdated and won’t work with iOS 11 or greater and I’m well past iOS 12+ now.
Anyone know of such a thing that will work with a current version of iOS and the built in Numbers app? Thanks!