Hey all!! I mainly use an 85mm 1.8 lens for portraits. However I am noticing that when I am far away from the subjects (trying to include more people or full-body) the images are not sharp when zoomed in. They seem either unfocused or slightly blurry. This happens with and without flash. When doing close-up shots, however, they are tack sharp. I don't consider my 85 as that long of a lens, but could this be due to camera shake? It is very frustrating, and on this particular shoot I was not allowed a tripod (gardens rule). My 50mm is currently broken and I plan on getting it fixed. Would shooting with this lens more often (or for further away shots) help with this issue? Grumble grumble... Thanks in advance!!!