If you are 25-30, or right at the time that you are getting into home ownership, then your credit score is quite important. By the time you are 45 and have likely paid off your home (a good saver should have paid of their mortgage by this time) then what you said is more correct.
Letâs quickly review a summary of the Exposure Triangle as a refresher: 1  ISO â the level of sensitivity of your camera to available light. 2  Shutter Speed â the length of time a camera shutter is open to expose light into the camera sensor. 3  Aperture â a hole within a lens, through which light travels into the camera body.
A, S and M Modes. If you want to use only one aperture or one shutter speed then use S or A mode and the camera will automatically pick the other value. I never use these; I shift the program instead. If you want to set both the hard way, use M, manual, mode. In A or S mode you can only set one of the two values because the camera is setting the other one for you. A Mode: Aperture Priority. In A mode you choose the Aperture and the D40 chooses the shutter speed.