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Heat Ray Vision
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Flowers in Barbed Wire Design
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Perspective Basics: A Draw-Through Technique, With a Spaceship
In today’s tutorial you will learn how to polish your knowledge of perspective with a simple but very useful technique widely used by concept artists and professionals in the entertainment industry. Let’s get started!
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Remove a Section of Your Photo
This video shows how you can remove a section right from the middle of your photo with Photoshop Elements and then seamlessly stitch it back together.
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How to create a top quality logo for your company
On this tutorial we will be focusing our attention on one of the main elements of any company's image, the logo. Using Adobe Photoshop we are going to show you how to design a logo that works both in communication and aesthetic levels.
| Sigma 10-200 |
 Sigma 10-20mm F3.5 EX DC HSM lens : Sigma announces the new Sigma 10-20mm F3.5 EX DC HSM lens. This super-wide angle lens has a maximum aperture of F3.5 throughout the entire zoon range. Its wide angle of view from 102.4 degrees produces striking images with exaggerated perspective. The maximum aperture of F3.5 is ideal for indoor shooting and it enables photographers to emphasize the subject. Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Four aspherical lenses provide correction for distortion and allow compact and lightweight construction. The Super Multi-Layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. Sigma 10-20mm super wide-angle lens The incorporation of HSM (Hyper Sonic Motor) ensures a quiet and high-speed AF as well as full-time manual focusing capability. The Sigma 10-20mm lens has a minimum focusing distance of 24cm (9.4 inches) throughout the entire zoom range and a maximum magnification ratio of 1:6.6. The Sigma lens design incorporates an inner focusing system. It eliminates front lens rotation, making the lens particularly suitable for using the Petal-type hood. The Petal-type hood blocks extraneous light and reduce internal reflection. Sigma 10-20mm lens specifications • Lens construction : 13 elements, 10 groups • Angle of view : 102.4°-63.8° • Number of blades : 7pcs • Minimum Aperture : F22 • Minimum Focusing Distance : 24cm / 9.4in • Maximum Magnification : 1:6.6 • Filter Size : Φ 82mm • Lens Hood : Petal-type hood • Dimensions : Φ 87.3mm × 88.2mm / 3.4" × 3.5" • Weight : TBD |