August 2013
Intermediate to advanced
65 pages
1h 30m
English
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Choose a wide aperture
The aperture or f-stop of your lens has a big effect on sharpness (though this is always modified by focal length). When the lens is set to a more open or wide aperture, depth of field decreases. When the lens is set to a stopped down or small aperture, depth of field increases.
This can be confusing because the numbers used for apertures don’t immediately make intuitive sense. Small numbers, such as f/2.8 or f/4, are more open or wider apertures. Large numbers, such as f/16 or f/22, are smaller apertures. The reason for the numbers is that they are actually based on fractions formulated from the relationship of the size of the opening to the focal length of the lens.
You don’t need to know that. Simply use smaller numbers ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.