Calculating Aperture Stops

I felt really silly at the workshop because my new friend, Polly, told me about the shutter speed stop calculation and I had to ask Jonathan to make sure it was true. Ha ha, turns out that you can do the same thing with f-stops. It's kind of tricky with this one, but if you double the f-stop, you are making a two stop difference in the light. So f2 is two stops brighter than f4. "And what is one stop brighter?" you may wonder. f2.8! That is just silly. I know and still don't get it, but f2.8 is very common, so I think about it this way. 1.0 1.4 2.0 2.8 4.0 5.6 8.0 11 16 22 32 The red f stops are my base and they are easy to double and half. Then just think about the most common f-stop you can that is in between and there you have it! The one stop jumping system. So in the last post I told you about how I shot 3200 speed film in and had to take my shutter speed from 1/500 to 1/4000 to get the proper exposure (oops, I meant someone hypothetically did that, he he). There is only one problem, the camera only goes to 1/1000! I would need two more stops of less light! Can you think of the solution? instead of shooting at f2.0, I could shoot at f4.0 and still get the perfect exposure! (Triumphantly smiling)