From the course: Photo Gear Weekly

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Mirror lockup

Mirror lockup

From the course: Photo Gear Weekly

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Mirror lockup

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- One of the things that makes a digital SLR an SLR is that it includes a mirror. SLR stands for single lens reflex, which essentially means that there is one lens, of course, but that lens is being used both for the image sensor as well as for the view finder. So when we're looking through the view finger the mirror is reflecting the image up into the view finder and when we take a picture that mirror comes up and then the image can be exposed on the image sensor. So I'm here in Washington Square Park in New York City taking in some of the local color, capturing some images. I've set up my tripod here. I found a scene that I like. I have my camera set. I want to get maximum depth of field so I've stopped the lens down all the way to f/16. I'm at 100 ISO, and that's giving me a shutter speed of 1/15 of a second. That's no problem at all because I'm on a tripod and I'm using a timed exposure here so that I don't need to worry about any movement of the camera, and yet, that 1/15 of a…

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