Friday, October 14, 2011
How to change your DSLR Camera Lens
One question that comes in quite often is what is the proper way to change your lens? Along with that question people seem to have a concern about changing their lenses in the field.
In this video I explain how I change my camera lenses in the field and will explain here why I am not afraid to change them in the field.
Thursday, October 13, 2011
Tuesday, October 11, 2011
Reading the Histogram (Photography in 90 Seconds)
The histogram is a graph which represents the distribution of light or luminance values in your image. Its horizontal axis ranges from black and dark shadows on the left to bright or pure white on the right. Although there is no 'perfect' distribution for a histogram, a well-exposed image will have luminance values that fall within the histogram's range for your camera, with no pixel's luminance values falling on the extreme left (shadows recorded as black) or on the extreme right (highlights recorded as white), unless you are trying to achieve a particular creative result. Fortunately, all modern digital cameras can display an histogram, which you should check early and often to help ensure that you achieve a good exposure. To view the histogram, preview your image on the LCD screen of your camera, and flick through the options until a graph appears (some cameras only show luminance, while others also show the Red, Green, and Blue channel values). If it shows values on either extreme, you may want to adjust your aperture, shutter speed, or ISO, and then retake the image to regain that lost information.
If the brightness values in the scene fall outside of you Histogram's range (i.e., outside of its dynamic range) even after making appropriate exposure adjustments, then you may want to properly expose for the shadows and highlights in separate images, and then combine or blend those exposures in an image-editing software program like Adobe Photoshop or Photomatix; this technique is also called HDR, or High Dynamic Range photography
a video from www.ethanwilding.com
Deserted Freeway: Photography
How many time have we waited for the traffic to disappear so that we can take a photograph of a highway without vehicles? In fact we may never find a time where there are no vehicles around.
So how to photograph the highway without showing the distracting vehicles?
Here is a tutorial on how to do this, making a busy highway look like it is deserted and lonely, without showing the vehicles.
AdoramaTV Presents Digital Photography One on One. In this week's episode, Mark shows you how to shoot photos of busy places like freeways, but make it look completely deserted! This technique involves a 9-stop neutral density filter, and can be used to shoot "deserted" museums, streets, tourist attractions and more!
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