SLR anatomy
How a SLR or DSLR takes a picture:
SLR's and DSLR's are almost identical to each other in the way they function, the only difference is how they capture the image. SLR's capture the image via film, so when the mirror flips up it then allows the light to go through to the film, the same goes for the DSLR but in stead of film it goes to a sensor.
When you press the shutter button on a camera to take a picture you trigger the aperture to move to where you have specified for it to be at, it can be restricting the light going through or allow more light through. the way to counteract this is to change the shutter speed to longer or shorter, therefore allowing the film or sensor to be exposed to light for longer.
SLR's and DSLR's are almost identical to each other in the way they function, the only difference is how they capture the image. SLR's capture the image via film, so when the mirror flips up it then allows the light to go through to the film, the same goes for the DSLR but in stead of film it goes to a sensor.
When you press the shutter button on a camera to take a picture you trigger the aperture to move to where you have specified for it to be at, it can be restricting the light going through or allow more light through. the way to counteract this is to change the shutter speed to longer or shorter, therefore allowing the film or sensor to be exposed to light for longer.
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