There are currently several (10+) Canon Zoom lenses that are currently discontinued. Among these ten are the EF 50mm f/1.8 Prime _Ê_ The original model, often called the _Ê_Mark I_Ê or the _Ê_Metal Mount_Ê, the EF 28-70mm f/3.5-4.5 II Wide Angle to Telephoto Aspherical Zoom with Macro focusing _Ê_ The upgrade version with a six-blade aperture only, and the EF 35-105mm f/3.5-4.5 Wide Angle to Telephoto Zoom _Ê_ _Ê_One Touch_Ê zoom with Macro focusing. For the entire list go to eBay.
There are many types of Canon camera lenses, and within each type there is a wide range of prices and quality available. Canon offers lenses in standard zoom, ultra wide zoom, telephoto, as well as wide angel and macro lenses.
A Canon L Lens is in the line of SLR photography lenses made by Canon. L lenses are Canon's top lenses and according to Canon's Lens Work III Book L is for luxury. They are used on cameras for better zoom and image quality.
Canon offers a large variety of special zoom lenses. Check out their website for specific lenses for your camera body type. Canon offers a variety of macro lenses for fitting to EOS compatible bodies. you can check further at http://www.clickmacrophoto.com/lenses/canon-100mm-f2-8-macro-lens/
One of the best known 12 MP digital cameras is the Canon PowerShot SX50 HS. The SX50 HS has one of the longest zoom lenses currently available with a 50x zoom lens and 2.8" LED display.
Point-and-shoot digital cameras come with a fixed lens, that often has both an optical zoom and a digital zoom. The fujifilm FinePix S3200 has a 24x optical zoom and 6.2x digital zoom. DSLR cameras such as Canon cameras with an EF mount, like the EOS and Rebel series cameras, can have different lenses attached. These lenses can have focal lengths of 600mm and beyond.
Depending on your camera, lenses are available or not available. Nikon, Canon, Olympus etc., all have very good zoom lenses for their cameras. You will also find good lenses from Tamron, Sigma, and Tokina, that would suite your requirement. However, I am assuming that you have an SLR camera...
A pair of different zoom lenses can be good to have a different type of shot ready in your arsenal. Also, fisheye lenses are extremely popular due to their cool, warping look.
Only if they are zoom lenses. almost all camera lenses are compound meaning that they have more than one element.
canon a560, canon a720, they have 4 x optcial zoom
Optical zoom uses lenses to focus on objects further away... it is the lenses which do the 'zooming'. Digital zoom is where a photo is taken using the same set of lenses all the time and using software to enlarge the picture.
Unfortunately no. With an adapter one can use a Nikon lens on a Canon body, but the distances between lens and register (the critical point in the camera body where the image is recorded) make it impossible to even create an adapter to use Canon lenses on Nikon bodies.
There are two types of lenses - fixed focal and zoom lenses.