Zoom Camera Lens

more info: www.swarovskioptik.com To set up the Swarovski UCA for a DSLR camera: – align the supporting platform so that you have a large area, big enough to support your DSLR, as opposed to rotated and made more compact for a point and shoot camera (see video) – attach the camera on to the removable [...]

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; [...]

This video features three of the Sony G Series Telephoto zoom lenses.

testing old lenses – nice diffusion effects with an old tamron zoom lens low light problems with an old wide angle lens Canon 50mm EF 1.8 ii Canon 28-70mm EF 4-5.6 ii (with macro, and fish eye) Tamron 70-300 EF 4-5.6 127DE still getting the chopping effect when the camera moves suddenly

I have a Nikon D40 and I am looking to buy another lens for it.
I want a lens with a better zoom than what the lens that came with the camera has. What is the best zoom lens I can get on a budget?
I’m going to a concert in July and I’d like to have [...]

Is the lens you put on a DSLR the only thing that determines the optical zoom or can the just camera body contribute to the zoom it has?

i have a nikon coolpix L3 5.1 megapixels. the camera was sitting on my bed wen i sat on it by accadent!(i know it sounds stupid) the camera was zoomed out wen i sat on it, so my butt pushed the zoom in. now it wont let me do anything w/ it. i turn it [...]

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 [...]

I want to buy a zoom lens for my girlfriends Canon EOS digital SLR for her for Christmas (sorry not sure the exact model). I have no idea about cameras and I have about £80 (US5). Is there something out there I could buy?