Ql 17,19 Out Of Focus

[preforged]

I have both a QL 17,and QL 19 older edition cameras (1965) I am really getting into taking photos with an RF camera,for years I have used an SLR system.There is one thing that I am noticing,my photos seem to be a bit out of focus when developed.This occurs at the infinity setting as well.I am pleased with the amazing colors that these cameras produce,but I can not fiqure out the focus problem.Can someone advise.Thank you.


Ed