Q:Find the popular SLR camera lens

Such as digital camera: 3.6 times zoom; f = 6.7-24.0mm / F3.1-6.7 What is the meaning of these data? F = 6.7-24.0mm refers to the actual focal length of the lens, that is, wide-angle end (near focal length) focal length 6.7mm, telephoto end (far focal length) focal length 24.0mm. With telephoto end (far focal length) focal length divided by wide-angle end (near focal length) focal length, the number is the lens zoom, that is 3.6 times zoom. In the camera's manual generally shows that the lens is equivalent to the number of 35 mm lens. / Back F3.1-6.7 refers to the lens aperture size, that is, wide-angle end (near focal length) aperture is F3.1, telephoto end (far focal length) aperture is F6.7. The smaller the aperture value, the greater the amount of light through the lens. Ordinary home digital camera, shoot vision to use telephoto end, shoot macro with wide-angle end, and some cameras with macro shooting mode. If it is a SLR camera, it is possible to replace the lens, according to the need to choose telephoto, wide angle, fixed focus, macro and other professional lens shooting. Hope to answer to your help.

Q:Canon camera appears "camera and lens communication is faulty please clean the lens contact" error

Canon camera appears "camera and lens communication failure please clean the lens contact", because the aperture movement blocked. There is an aperture preview button below the lens button. The camera hit the P file hold down the key, and then change the aperture size. Repeatedly release the contraction many times, the problem can be solved;

Q:What is the Chelsea certified lens?

"Certification" does not mean "production". In the field of digital cameras and mobile phones, Sony and Nokia's cameras are known as "Carl * Zeiss" certification. But these products are actually their own according to "Carl * Zeiss" standard production, and through the "Carl * Zeiss" recognized, not the real "Carl * Zeiss" products. Genuine "Carl * Zeiss" production plant has long been the production of low-grade lens.

Q:SLR camera to replace the lens when how to operate?

Step 3 special attention, a lot of people in a hurry, the lens removed directly after the bag, forget to cover the back cover, the results of the gray into the lens. In the protection of the camera does not enter the gray at the same time, also need to protect the lens.

Q:Digital camera lens with the sensor type which important point, what is better

Camera lens is the most important part of the camera, because it directly affects the quality of shooting imaging. At the same time the lens is divided into the camera type and grade of one of the most important standards. In general, according to the camera, the camera can be divided into professional cameras, quasi-professional camera and ordinary camera three grades, whether it is a traditional film camera or digital camera, can be applied to this division. The lens can be divided into zoom and fixed focus two categories.

Q:What is the camera lens?

Like the famous Canon white focal length is 70-200 mm less than 3 times the look, and the maximum aperture constant at F2.8, with no dispersion (purple side) of the fluorite lens! The Saying that if the landlord do not understand these most basic things, my advice is not easy to SLR!

Q:SLR camera lens What does the USM mean?

Canon ring USM in addition to the basic characteristics of the above, its own characteristics: 6, high efficiency, low power consumption; 7, the ring of the motor can be perfectly combined with the mirror body; 8, low speed, especially for the lens of the AF drive; 9, the rotation speed can be in the range of 0.2rpm ~ 80rpm arbitrary control; 10, can achieve the sensitivity of the electronic MF; 11, the working environment temperature is: -30 ℃ ~ +60 ℃.

Q:On the Canon camera "lens error, please restart the camera" problem?

First, the reason Most of the camera failure is a lens failure, because it is a mechanical part, vulnerable to external impact, when there is a foreign body (sand, etc.) into the lens can cause lens failure. Drive the lens of the transmission gear is a problem

Q:Camera lens into the gray how to do?

Not much gray words Ignore it Does not affect the image The lens is not sealed Behind the mouth of the hole What can fly in Lens gear between the teeth will also produce fines, of course, the amount of extremely small

Q:Canon SLR camera lens is a bayonet? Can you use a domestic lens?

Canon's bayonet is the EF bayonet as long as the Canon can produce other manufacturers of the dragon with the Sigma is compatible with Canon's bayonet You can tell me the body model and then what the price of the head to do with what I recommend to you