Beautiful sunny day here in Tucson, off to our studio this morning to prepare for senior portraits.
Our senior sessions are always a lot of fun for both us and the seniors!
Saturday, April 10, 2010
Friday, April 9, 2010
The Golden Triangle of Exposure
Now that you have thought about how your camera sees in comparison to what your eyes see it's time to take creative control. There are just three things that control camera exposure; aperture, shutter speed and your ISO setting of your sensor. Change one of the three and the exposure changes, but you can change one and compensate by changing another setting and keep the same exposure when desired. For example you have ISO 400, f/stop 8 and shutter speed of 250 or 1/250, remember to think of f/stop and shutter speed as fractions and it will be easier to understand. Change the shutter speed to 1/125 and you have slowed down the shutter speed by 1 stop which will allow more light on the sensor. This effectively changed your exposure from your original settings. To keep the exposure the same as the original you can do two things, either change the ISO to 200 (1 stop) or change the aperture to f/11 (1 stop).
ISO 400 f/8 1/250
ISO 400 f/11 (smaller aperture lets in less light) 1/125 (slower shutter speed allows more light in to the sensor) makes the exposure the same as the original.
ISO 200 (decreased sensitivity to light by 1 stop) f/8 1/125 (allowed more light to hit sensor by 1 stop) again this is the same exposure as the original.
More later on how to use these changes to take creative control.
ISO 400 f/8 1/250
ISO 400 f/11 (smaller aperture lets in less light) 1/125 (slower shutter speed allows more light in to the sensor) makes the exposure the same as the original.
ISO 200 (decreased sensitivity to light by 1 stop) f/8 1/125 (allowed more light to hit sensor by 1 stop) again this is the same exposure as the original.
More later on how to use these changes to take creative control.
Monday, April 5, 2010
Wednesday, March 31, 2010
What I wish I knew about photography.
Ok, this is my first blog. At the urging of a friend who said that blogging would put us in touch with more people on the web and help other potential photographers as well, here goes!
Do you ever look at your photos and wonder what happened? Do you say to yourself, "This is not the way I remember the scene." Well there could be many good reasons why your camera did not record the scene the way you saw it through your eyes.
The human eye is wonderful in its ability to see a wide range of shades and colors, and look into the shadows or very bright areas and still see details. Our cameras are quite a bit more limited in their ability to see the same thing. So what do we need to do to get our cameras to record what our eyes see? More later---
Do you ever look at your photos and wonder what happened? Do you say to yourself, "This is not the way I remember the scene." Well there could be many good reasons why your camera did not record the scene the way you saw it through your eyes.
The human eye is wonderful in its ability to see a wide range of shades and colors, and look into the shadows or very bright areas and still see details. Our cameras are quite a bit more limited in their ability to see the same thing. So what do we need to do to get our cameras to record what our eyes see? More later---
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