I usually shoot at the tightest possible f-stop... but my usual subject is alpine wildflowers (10 violets to cover the face of a dime) and so maximum depth of field is more essential than light. It's just a longer exposure. I'll brace and hold, although I'm not as steady as I was a few decades back. Since fstop controls both the amount of light (exposure time) and depth of field (area within focus), it gets really complicated really fast. Film is sensitive to exposure times and will change color with longer exposures (something which won't affect us in this virtual world). However, there are some neat things you can do with real film (backlighted silhouettes and waterfalls flowing like milk and trailing stars) which are quite tricky to fake. If we can get Poser 5 to behave more like a real camera, I'll be tickled pink. So, thank you all! Carolly