Lenses Compatible With Canon

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FAQ

What is the meaning of the medium focus in the SLR camera lens?
Need to pay attention to how many mm this is the standard 35mm camera, for small format camera (Nikon called DX format) lens, is to be converted, Nikon's conversion factor is 1.5, Canon is 1.6, such as a 100mm lens , The DX frame camera used, the equivalent of 150mm standard (FX) frame lens.
Glasses cloth can rub the SLR camera lens!
Usually pay more attention to protect the lens, if dirty, to rub, then you can use a special camera to clean the paper.
SLR camera lens marked 2-2.4 / 9.7-48.5 what is the mark
This should be Sony 10 years ago digital camera F 717 (not SLR, just use 2/3 inch CCD flagship home digital camera),
What is the requirement for a camera shot?
1, because you are in the concert scene, and the distance from the star is not necessarily, so the lens recommended zoom lens, and is in the telephoto above 2, is to photographed the stars of the moment photos, then ask the shutter time must be fast 3, the more clear the better photos, it requires ISO as far as possible not too high. ?
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.
Canon 550 camera lens with
Fixed focus lens: is only a fixed focal length of the lens, only a focal length, no zoom function. The design of the fixed focus lens is much simpler than the zoom lens, but the general zoom lens will have an effect on the imaging during zooming, and the biggest advantage of the focus lens relative to the zooming machine is that the focus is fast and the image quality is stable. Many have a fixed focus lens digital camera shooting images of moving objects clear and stable, focusing is very accurate, the screen is fine, grainy is very slight, metering is also more accurate.
Camera lens can not open how to do?
I myself is selling the camera, the problem, I encountered many times, very simple, just need to gently pull back and forth a few can. This is because, dirty things in the camera at the camera, after any problems, you can always ask me ah.
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.