Is my Kmart focal Focal 80-200mm ZOOM LENS AutoMatic Diapharagm compatible with myCannon 7D?
All third part lenses, like yours, that I know of, have specific mounts for the various cameras. If the package says that it is for Canon, then it will be compatible. If it says something else, like Nikon, then it wo not .
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Nikon D5100 or Cannon 60D?
60 is in the semipro range. it is very good video and a screen that is suited for it. nikon 5100 is a step above budget, but not yet semipro. you would have to buy a d7000 to get to that level. verdict: i would go with a 60d. picture quality is not really determined by the body. It is determined by the lens. If you buy canon or nikon, do not buy it with the "el crapo" kit lens. Buy the "cheapo" 50mm 1.8 prime (no zoom) that both brands offer for around 100 bucks. the 50 1.8 is a beatifully cheap and awesome lens for the image quality. Save the remaining money for better lenses Canon 24-70 f2.8 L lens Nikon 24-70 f2.8 L lens. for shooting video, I would recommend lenses with low aperture for the beautiful blurred background. Professional video cameras have expensive prime lenses (no zoom) that go down to F/1.0 did I mention how much they cost? . as much as a car. But the 50 1.8 would do for shooting video. It may be a bit hard to manually focus, but with practice, you will do fine. the zoom lenses I recommended above are for general photography. If you like video, then stick to prime lenses and zoom with your legs. I would recommend buying a wide angle prime (if you are into video) for your second lens after the 50 1.8 nikon: 20mm f/2.8 canon: 20mm f/2.8 but if you insist on a zoom lens for video, the tokina 11-16 2.8 wide angle zoom is a mindblowing deal. and it's build like a tank. for a budget price.
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What the best telephoto zoom lens for everyday use with a Canon 7d with a $2500 budget?
A top of the line everyday lens for a top of the line crop sensor, with specialty in landscape/outdoor rather than portraits, you will be looking for something like these:A huge bazooka superzoom can hardly be considered an everyday lens. The fourth option above weighs 3.7 pounds and is as long as a sheet of A4 paper.All the lenses cost between 1300-2500$, so they are within your budget.
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is there a difference between a telephoto and zoom lens?
A telephoto is a lens that magnifies like a telescope or binoculars. Every camera size has a "normal" focal length size. This is a lens about equal to the diagonal measure of the film frame size or the digital sensor size. For the full frame camera (Fx) this is about 50mm for the compact digital (Dx), this is about 30mm. The realm of telephoto starts at 200% of normal. For the Fx, this is 100mm or longer, for the Dx this is 60mm or longer. A good portrait lens choice is somewhere between 200% thru 250% of "normal". Thus a telephoto lens (long lens) would be one that gives a magnified view. As an example, a 300mm on a Dx delivers the equivalent of a view thru 300 Ã· 30 = 10 written as 10x the same as a 10 power binocular view. Technically a telephoto is a long lens, however since a 300mm long lens sticks far out in front of the camera, this is awkward. The countermeasure is a true telephoto. This is a long lens that has been optically physically shortened. In other words the actual length of the true telephoto is more compact than the focal length number would have you believe. This is accomplished by use of a negative lens element in the lens arrangement. Such a design places the measuring point forward in the barrel. A true telephoto lens might even have a measuring point that falls in air forward of the front glass element. A zoom lens is one that has a mechanism that alters the positioning of the lens elements inside the lens barrel allowing the user to change the focal length. If they are longer than "normal" they are generally true telephoto designs.