It depends on the range of the zoom, the size of the film format, and to some degree, the opinion of the photographer. For 35mm cameras, 50mm is considered "normal", and any lens that goes from about 50% shorter AND longer than that can be consdered a zoom that works as both wide and telephoto. An example of this school of thought is a 28mm - 80mm lens. However, for some people, that is not extreme enough to qualify.
There are some "superzooms" that range from wide-angle to telephoto in the same lens - the 18-200mm range is available from Nikon and Sigma.
You may be thinking of Weegee (Arthur Fellig), who was known for his stark urban photography in the 1930s and 40s. Much of his work was done with an extreme wide-angle or fisheye lens. Ansel Adams also created a number of images with wide angle lenses that gave a fisheye effect.
All bayonet mount canon camera's in the past 30 years will accept an FD lens'. The AE 1 and later ones will accept the lens' but will only work on automatic if the lens has the A setting on the lens.The FD will not work on an auto focus.
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In one of two ways. Some of them just use a really wide-angle lens and a negative the length of two or three normal-size frames- Fuji GX617s did this. Others use the long neg, but put the lens on a turret that rotates to expose the film all the way across.
Camera lenses can be very expensive. Amazon.com features many different ultra wide zoom lenses starting at around $199. The prices vary widely, so it would be best to see exactly what lens will work for you by searching the Amazon site.
It depends if the camcorder has the physical settings to attach the lens.
The inability to clearly see near objects is called hyperopia and is generally caused by refractory error of the eye's lens. Reading glasses change the angle at which light enters the lens, compensating for the refractory error and allowing light to focus appropriately on the macula.
Yes. The Pentax SLR lens K-mount will fit the Pentax Digital SLR [DSLR] and the Samsung DSLR. Two warnings: (1) you will lose the electronic linkages for some of the automatic functions; (2) the effective focal length of the lens will change. Most current DSLRs have an image sensor that is only about 2/3 the size of a 35mm film frame. Consequently, DSLRs will multiply the focal length of a traditional SLR lens by approximately 1.5: a 50mm SLR lens put on a DSLR will produce an image close to that of a 75mm lens; a 200mm telephoto lens will function as a 300mm lens. At the lower end of the focal lengths, a wide angle SLR lens, such as a 24mm, if attached to a DSLR, would lose its extreme wide angle advantage and function as a 36mm lens. In brief, long lenses will reach further out, but wide angle lenses will lose part of their ability to capture a full scene. Kodak and Canon have announced "full frame" DSLRs: digital cameras that have a sensor the same size as a standard 35mm frame. On such cameras, the SLR lens will retain its effective focal length regardless of whether it's used on an SLR or a DSLR. Neither Pentax nor Samsung has announced such plans for K-mount owners. In any event, the new full-frame Kodak and Canon full-frame DSLRs may be out of an amateur's reach, for they have an announced price of about $8000.
Yes. If the lens is a EF or EF-S lens, it should work fine with the t1i
There are two possibilities; The focus - a motor moves the lens elements in conjunction with a sensor to get a sharp image. The zoom - operating the zoom controls, moves an optical group which gives the photographer the desired angle of view.
biology
A convex lens is curved outward on both sides. Also, a convex lens, is used to enlarge objects.