The tester is based around a photoresistor that measures light from another source (a flashlight) that travels through the camera body. When the shutter on the camera is released, the shutter ...
In traditional photography, long exposure photos are exactly like they sound. The camera shutter is kept open ... If the icon has a line through it, the feature is disabled; you can tap it again ...
Have a look at the strange shapes that come out of the rolling shutter camera! All of the images are blurred a little bit because the blade was moving fast during the exposure; if you need to ...