Tamron Af 70-300mm F/4-5.6 Xr Di For Nikon / Canon / Sony Mount

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Product Description:

  • 9 Groups, 13 Elements Lens Construction

  • Rotation Type of Zooming

  • 9 Diaphragm Blade Number

  • F/32 Minimum Aperture

  • 59 inch Minimum Focus Distance (1.5m) in normal setting, 37.4 inch (0.95m) in macro mode f=180mm-300mm range



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Q:Is the camera's lens longer and more expensive?
The longer the lens, the more lenses, the more heavy, the more expensive materials, the more expensive. Of course, the longer the lens is thicker, its optical design and mechanical design more difficult, High design costs, high manufacturing process requirements, low cost. Less demand, low yield, will push the price of the big lens. The lens is easy to do.
Q:What does the camera lens's ccd mean?
As the digital camera introduced the software interpolation resolution, so in the resolution of the digital camera real cut rate, first look at the CCD of the sub-rate, and then look at the finished product camera cut rate. If the CCD and camera resolution is different. It is certainly the result of using software interpolation. In addition, for digital cameras, the resolution of its optical lens must be better than the resolution of the CCD, and CCD pixel values, must be greater than the final effective image sub-rate.
Q:The digital camera shows what the lens is wrong
General digital camera display lens error is due to the machine's self-test function of the machine so that the machine does not work. It will prompt you how to deal with, such as can not reply to machine failure, please repair the local brand service
Q:SLR camera lens has a slight spot-like moldy how to do? Is it sunny?
Can try, but can not guarantee useful. If the lens is better, it is best to repair it, looking for professionals to do lens maintenance mold. If you want to do it yourself, you need to open the lens (hands-on ability is not strong, do not understand the people please do not split)
Q:SLR Canon camera lens 18135 good or 8518 good?
The specific words to see your use I think if you have to choose a person or a good 18135 better unless you are very clear that you want to shoot what to choose 8518 that the limitations of the larger lens
Q:How does the camera lens handle?
With a special lens paper or wipe with a lens pen, handwritten with hand oil, with anhydrous alcohol will hurt the lens, glasses cloth will be slightly scratched lens! If it is SLR can add a UV to protect the lens, but the DC can not!
Q:In the camera lens, 1 / 2.3 inch means what it means
Configuration 1 / 2.3 inch digital camera is usually low-end or although not low-end but most of the telephoto camera (optical zoom more than 10 times), the use of 1 / 2.3 inch advantage is the camera's volume can be done Small, like a card machine and the like are used in such photosensitive components, and the use of a little more photosensitive components of the camera size to do some big, of course, the quality of the image will be better.
Q:What is the difference between a movie lens and a SLR lens?
   4. Film lens is stepless, can be arbitrarily changed, that is, between the two files can be arbitrarily put the aperture. The SLR lens F1.2, F1.4, F1.8, F2.0 ... ...
Q:Nikon camera lens focal length
Introduction to the physical concept of focal length If you read the camera in the English specifications "f =", then the back of the digital is usually its focal length, that is, the length of the focal length. Such as: "f = 8-24mm, 38-115mm (35mm equivalent)", refers to the length of the camera's focal length of 8-24mm, while the diagonal angle of the equivalent of the traditional 35mm camera 38-115mm The In general, 35mm camera lens lens length is about 28-70mm, so if the focal length is higher than 70mm on behalf of the support for telephoto effect, if less than 28mm said there is wide-angle shooting ability. "Focus range" is the extension of the focal length, usually divided into the general shooting distance and close distance, the camera's general shooting distance are usually marked as "from a centimeter to infinity", and near-stage design of the product is often also Will provide close-up shooting function (macro), to make up for the general shooting mode can not focus on the problem.
Q:SLR camera lens aperture how to see?
58 is the caliber is the diameter of the lens is to buy UV or the like need to provide the diameter parameters 18-55 is the focal length

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