Not all AMIs displayed

I'm trying to start an EC2 instance using the JBT Deltacloud tooling, but the AMI I want doesn't appear in the list. It also doesn't appear in http://localhost:3001/api/images unless I restrict it by owner - so I guess deltacloud has some limit that means it doesn't show all 5000ish instances I can start. Any ideas on how to make it appear in the list? e.g. can I make deltacloud display more? or can I make JBDS filter on owner id? or can I make AWS return fewer images?