You can control the amount of light that reaches the film in two ways: by adjusting the amount of time the shutter stays open (referred to as the shutter speed) and by changing the aperture.
The aperture is a hole in an adjustable diaphragm set between the lens and the shutter. Light coming through the lens is funneled through this hole to the shutter and then onto the film. So if you want more light to strike the film, you make the aperture bigger; if you want less light, you make the aperture smaller.
Shutter speeds are measured in more obvious terms: fractions of a second. A shutter speed of 1/8, for example, means that the shutter opens for one-eighth of a second. Try to capture a moving object at that speed and you wind up with a big blur. You need a shutter speed of about 1/500 to capture action clearly
The three settings work together. You can play with setting on this tool
References:
For Dummies
Sunday, September 30, 2007
Wednesday, September 26, 2007
more attempts
Monday, September 17, 2007
What is...
What is photography?
To some it's about being @ the right place @ the right time
to some, it's about having an "eye"
and to some, it's about having a good camera.
What do you think? What makes good photography?
To some it's about being @ the right place @ the right time
to some, it's about having an "eye"
and to some, it's about having a good camera.
What do you think? What makes good photography?
Tuesday, September 11, 2007
Batteries - life savers
Someone asked in a Photography magazine:
"if i store my dslr battery in the camera, will it run down"
and the answer was:
There's an ikhtelaf (difference of opinion) between camera makers. Batteries run down in some cameras, but in the others it doesn't. So recommended solution is to remove the batteries if you are storing it for more than two weeks. But try it out, and experiment
Most photographers carry a number of batteries with them, including spares. An organizer would definitely help. Here's one - just an example.
"if i store my dslr battery in the camera, will it run down"
and the answer was:
There's an ikhtelaf (difference of opinion) between camera makers. Batteries run down in some cameras, but in the others it doesn't. So recommended solution is to remove the batteries if you are storing it for more than two weeks. But try it out, and experiment
Most photographers carry a number of batteries with them, including spares. An organizer would definitely help. Here's one - just an example.
Monday, September 10, 2007
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