Photography note 2: Exposure Bias, Aperture and Shutter speed

As my today's test shootting, I understood about Exposures bias , Aperture value and shutter speed.

Test 1: The image of bottles is darker in Exposure Bias 1.00. Another image of bottles is lighter in Exposure Bias 1.50 ( Both are same aperture value f 6.7)

Test 2: Both of bottles in focus at f 13.00 Aperture Value. A front bottle is in focus and the back bottle is out of focus at Aperture Value f 5.60 ( Both are same exposure bias 1.00 ). Click and open the bigger images to see the difference.

The shutter speed is changed automatically as changes of above. If shutter speed is less than 60, it needs to use a tripod.