This week I am learning all about how to use my Apertures. I also just got my new Nikkor 50 MM 1:1.4 lens in and am LOVING it!!!
I am taking the Oh Shoot! class at Jessicasprague.com.
I'm using an open aperture on this one of 1:1.4. What that does is focus on one image and blurs out the rest.
This is also an open aperture of 1:1.8.
What I've also noticed with the closed aperture is that it does make the picture a little darker which is nice for full sunlight but probably not so great for indoors.