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Originally Posted by lollipop
This is EXTREMELY helpful!!!! Thanks so much! Could you also explain aperture the same way? I know most of this is true experience but I have to admit I haven't been that proactive in getting out there and taking pictures.
Here are some pics I took on a trip when I first got the camera - all in automatic mode: DSLR Shots - a set on Flickr
These were with my Nikon Coolpix point & shoot: Point & Shoot - a set on Flickr |
Nice pix...I started w/a point and shoot, and then broke it.
I decided I was ready to move up to the dslr, to try and recreate my 35mm experience from years past. I still haven't perfected this whole digital thing.
Aperture...lens opening. Stand in front of a mirror, and observe your eye pupils. They will be somewhat small. Now, put your hand over one eye for about 5-10 seconds. Take your hand away, and notice how large the pupil is. The eye does this to let more light in, when in low light situations.
Funny, I just found this about the eye, and they mention aperture to describe the eye. I'm using the eye, to describe aperture!
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Iris
The colored part of the eye is called the iris. It controls light levels inside the eye similar to the aperture on a camera. The round opening in the center of the iris is called the pupil. The iris is embedded with tiny muscles that dilate (widen) and constrict (narrow) the pupil size.
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The smaller aperture numbers represent larger lens openings...for low light. Sometimes, you will purposely choose a large lens opening...and consequently shoot at a faster shutter speed...because you want less depth of field...less in focus.
Sometimes, you will want more in focus, so you will choose a smaller lens opening...and use a slower shutter speed. The two always go hand in hand.
Sometimes you are forced to use a large lens opening, because there isn't enough light, and you can't possibly shoot slow enough without blur.
That is where iso comes in...you must choose whether you bump up the iso...higher number...but sacrifice grain/noise...in order to be able to shoot faster...
Got it?
Now I have to get back to work.