How to push only with iCloud photos I have a friend who owns a iPad and iPhone, and a Windows PC. We are using iCloud to sync pictures between the lot. 

What we would like is for all images / pictures taken on the iPad and iPhone to push a copy up to the iCloud photos. 

What we would also like is for the devices to not pull anything down. 

The issue is, he has 10k pictures in his iCloud Photos and this is too many images on his handheld device.

Is this possible? I went into the settings app and then ICloud but could only see options for sync.
iCloud Photo Library only does a full sync. Your friend might want to consider switching to something like Google Photos where a full sync isn't forced.