Tuesday, June 22, 2010
Protective Symbols • Turned Off With Tripods • Hold Still...1, 2, 3...HDR! • Old Flash, New Digital
Q My computer burned up recently (literally!) and, of course, I lost a lot of good stuff with it. Fortunately, I have all my photography on a hard drive and on CDs so there was no loss there. But I did lose an item I haven’t been able to replace, the copyright symbol. I had it on my computer as a JPEG image and was able to attach it to my photos as a layer in Photoshop. Where can I find it again?
A The © symbol is created using “option + G” on a Mac and “control + Alt + C” on a Windows computer. Using Microsoft Word or any word-processing software with either a Mac or Windows machine, make a large “©” or “© Your Name 2010” and save it as a PDF. Bring the PDF into Photoshop and save it as a JPEG. You can use this JPEG as it’s on a separate layer and you can control the opacity for its layer.
Another neat trick given to me by Photoshop guru Ben Willmore is to assign your copyright symbol or phrase as a preset to a brush in Photoshop. Then you can easily chose the © brush to put the symbol, or full copyright notice, anywhere. You can change its size using the square bracket keys, and by putting the notice on a separate layer, you can control its position, color and opacity.
Don’t forget that you can assign whatever copyright notice you want in the new Lightroom 3.0 as you export your images to a folder on your hard drive. This is great for batch processing a large number of images that need the copyright attached in one fell swoop.
For those upgrading to Photoshop CS5, Russell Brown offers a script that adds another menu to do watermarks, both individually and as a batch process. Go to www.russellbrown.com/scripts.html and look at the Adobe Watermark panel with its explanatory tutorial. If you
aren’t aware of Russell Brown’s Photoshop tutorials, you should check them out. He’s one of the founders of the Photoshop program.
Turned Off With Tripods
Q Recently, I read three different articles suggesting that when the camera is on a tripod, the image stabilization (either in the body or on the lens) should be turned off. None of those authors said why. What’s the benefit in turning off the image stabilization when the camera is on a tripod?
Las Vegas, Nevada
A Image-stabilization technology and tripods both are about controlling movement and getting the sharpest possible images, so it might seem logical to double your chances by using them at the same time. But with most lenses, image-stabilization capabilities should be turned off when the lens is on a tripod and a long exposure is being taken. The longer the exposure, the more important this is. Image stabilization is an internal counteraction of the external movement of the camera or lens. This is accomplished by a set of elements within the lens that reposition themselves, or by repositioning the sensor in the camera, within a certain range, to nullify the apparent effects of movement. When stabilization is active, the group of elements is in “ready” mode, able to react to each signal. When there’s no movement at all (as when the camera/lens system is securely mounted on a tripod), the elements are still seeking information and moving enough to cause image blur in a long exposure. When image stabilization is turned off, these elements are locked in place.
Note that some image-stabilization lenses (mostly high-end telephoto lenses) can sense a tripod and automatically adjust to minute movements while on a tripod. Image-stabilization capabilities are, therefore, left on all the time with these lenses. Check with the manufacturer to determine which lenses have this feature.
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