Zoom Camera Lens

Check us out at www.tutorvista.com get a free tutoring demo A lens is an optical device with perfect or approximate axial symmetry which transmits and refracts light, converging or diverging the beam. A simple lens consists of a single optical element. A compound lens is an array of simple lenses (elements) with a common axis; [...]

New lens. I noticed some free play in the Zoom ring, particularly when set at 85mm. Held gently between finger & thumb tips, I ‘rotate’ the zoom ring without actually trying to rotate the lens. This results in what I feel is unacceptable looseness in the zoom ring. I have compared this lens to two [...]

Photography has been my lifelong passion. With digital photography, there’s always new & exciting equipment that’s introduced. Such is the case with Nikon’s latest digital reflex still camera: the D-90. Here is my latest popular “Unboxing” video from the day I received this camera. The Nikon D-90 is a pro camera with 12.3MP sensor and [...]

Visit www.DSLRCamera.com. This video will help you understand the three main parts of a DSLR Lens that can change the Depth of Field in photographs. We will explain how the Aperture, Zoom and Focus all effect the Depth of field in a photo.

*****REVIEW BELOW***** Sigma 70-300mm F4-5.6 APO DG MACRO Lens for Nikon. I got this lens on the 30th of May 2009. In the box: Lens, Lens Hood, Pouch and Manual Some Specs: 550g, magnification of 1:2, hypersonicmotor, price: US0 Handling Info: For Normal Use, the Manual Focus barrel does not turn that much. Macro is [...]

Lens sizes for digital cameras range form fixed focal length lenses to telephoto zoom lenses, each of which is suitable for different sized cameras. Consider the camera chip size when choosing lenses with helpful tips from a professional photographer in this free video on photography equipment and supplies. Expert: Paul Morris Contact: www.dixieimageworks.com Bio: Paul [...]

What lens should you get??? Let me help you make an educated decision about getting a lens for your photography. What is the difference in Prime or Zoom. What focal length is right for your needs. what makes a lens fast or slow. Presented by http:www.samys.com , the answers are all right here. Buying a [...]

The best zoom lenses for sports photography have a long zoom, sometimes from 100mm to 300mm, and an image stabilizing feature is helpful to get the best images. Use the fastest possible shutter speed when photographing sports events with helpful tips from a professional photographer in this free video on photography equipment and supplies. Expert: [...]

Here’s a silly video showing my new camera rig and some of its peripherals, (and yes, I like to crush the light in post — whether it’s highlights or blacks ;^) This camera rig is built around a full frame DSLR, a Canon 5D Mark II, and includes: Canon 2.8 L IS 70-200mm, Canon 2.8 [...]

With a basic point-and-shoot camera, you get one lens built into the camera. One lens, thats it. And its likely a small lens, which doesnt allow a lot of light through to hit the image sensor. So, you may have a difficult time in low-light conditions. And without the option of adding more lenses, youre [...]