Thanks everyone for posting this info, I'm wondering why poser's manual doesn't include these differences that you've all listed here. You would think that if they wanted to use their own unique measuring system that they would at least include how the units relate to, and can be calculated to match other apps.

lesbentley & magnusgreel, from what you're saying I should be using the dolly camera instead of the main camera if I want precise distances, either that, or use the main camera and subtract the distance that it is off by. And I was correct in assuming that the orbit controls will give me the tilt/angle. If I subtract 90 from 104.5 I think that will get me close to the angle I need. I was experimenting with the orbit dial and it seemed like -15 to -20 looked more appropriate, so I think you're in the ballpark with that suggestion.

medzinator, I wasn't going to change the focal setting, simply because I don't know enough yet about how it affects everything else. I was just hoping it would be a simple matter of setting the dolly dials and the orbit dials, but from what you're saying, the focal length not being the same as the other app could throw everything off.

markschum & adom, I thought to look first in gen pref for the measurement setting, I must have quickly skipped over it and somehow didn't see it there, I'll go back and check again.

Well, you've all given me some good starting points to experiment with, some of it sounds a bit confusing tbh, probably because I'm not great at poser (or math), lol,  but I'll give it a whirl. :-) thank you.  

MM