In week #4 in my photography class we continued to work on Aperture Priority mode. This is truly my favorite setting so it was fun to shoot in this mode. One assignment that was interesting was to take a photo of the same object at 400 ISO and to raise the aperture a full stop each time. Here is the result:
So the top, left photo begins with the aperture wide open at f/1.4. The aperture narrows a full stop with each successive photo in this order: top row: f/1.4, f/2, f/2.8, middle row: f/4, f/5.6, f/8, bottom row: f/11 and f/16. You can see the difference in focus between the first and last photo: in the first photo the background is totally blurry while in the last photo everything in the photo is in focus. What happens though, is that as I narrowed the aperture (so raised the f-stop higher) the shutter speed adjusted accordingly, getting slower and slower so as to let enough light in.
Whew, I actually think I finally understand it all! What makes it so difficult to understand is that everything seems backwards. As the aperture opens up more (becomes bigger) the f-stop numbers get smaller. Next week we move on to shutter speed and hopefully shooting in manual mode. Fun!