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Many of the creative options available to a photographer hinge on an in-depth understanding of lenses. In Foundations of Photography: Lenses, Ben Long shows how to choose lenses and take full advantage of their creative options. The course covers fundamental concepts that apply to any camera, such as focal length and camera position, and shows how to evaluate and shop for DSLR lenses. The second half of the course focuses on shooting techniques: controlling autofocus, working with different focal lengths, and managing distortion and flare. The course also examines various filters and contains tips on cleaning and maintaining lenses.
It's beautiful day out here today and so I am on my walking around taking pictures and I've got my 24-105, which is my nice walk-around lens, because it gives me a good focal length range. Note that I have no lens cap on my lens. Now, what I am about say lot of people aren't going to agree with and your personal choice is just fine. I want to bring up just something for you to consider, which is, should you keep lens caps on your lenses? I keep lens caps on my lenses when I am in home and I am storing my lenses, but when I go out to shoot, I take the lens-cap off and I put it away. Like way away where I am not ever tempted to put it on the lens. Sometimes in fact I will even leave them at home. Because if I am out shooting in a street type situation or anytime where the situation might be changing rapidly and I need to move quickly to get the shot, I don't want to have to deal with the lens-cap.
I have missed shots before because I pulled my camera out, thought "oh, lens-cap," and taken it off. I know some professional photographers who actually throw their lens-caps away when they get a new lens. Now, that might seem reckless and dangerous. Bear in mind that I do have a UV filter on the end of my lens. So, my lens itself is protected. Yes my filter could get scratched and if this is a $80, $90 filter, that's a little painful. But also remember that tiny scratches on a filter aren't going to matter. Your camera will focus past them. The important thing is not to preserve a perfect museum quality specimen of this camera, but to be able to get good shots.
And to do that I need to be able to move quickly. So my personal choice is, is when I am out, I am a little bit anti-lens cap. I either leave them in the bag or just leave them at home. Just something to consider. Your own decision is up to you.
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