10 likes | 178 Views
Of course, everyone knows the long exposure of the low-speed, so I will not be wordy. It is generally acknowledged that the handheld shooting shutter speed should not be less than the reciprocal speed of the focal length, that is, a 50 mm lens should be able to hold stably at 1/60 second. But in fact, this problem is extremely complex, involving the effects of "machine vibration" and "shake" caused by SLR when you are shooting......
E N D
What is the significance of using a tripod? DVstabilizer.com News Thursday 13 September, 2012 | by Administrator | post a comment Of course, everyone knows the long exposure of the low-speed, so I will not be wordy. It is generally acknowledged that the handheld shooting shutter speed should not be less than the reciprocal speed of the focal length, that is, a 50 mm lens should be able to hold stably at 1/60 second. But in fact, this problem is extremely complex, involving the effects of "machine vibration" and "shake" caused by SLR when you are shooting. Factors causing the vibration include structures of the viewfinders of various cameras, the mirror box, the shutter, the weight of the machines, as well as the postures and the muscle relaxation degree, etc. when people holding cameras. Some experts have concluded that: in real shooting, the vibration of the imaging is wholly unaffected only when you using a standard lens of and the shutters of SLRs (referring to machines above the mid-range) in 1/500 of a second (or more). What will happen if you insist in shooting by hand at a low speed? The difference between 1/60 sec -1/125 sec and 1/500 of a second cannot be found in a 10-inch film, but if you put it large, you can find traces of machine vibration, which I believe you do not want to see, the reduction of imaging sharpness of the lens. Next question: whether it is necessary to use absolutely sturdy tripods, like Manfrotto, Gitzo? The most difficult area to eliminate machine vibration is in shutter files of 1/4--1/30 seconds, which only a handful of the tripods can completely eliminate. So many photographs of the shutter period we have seen, compared with the level of lens you used, is not very clear enough. That is to say, it is regrettable that the lens many people used lose sharpness indicator before using a solid enough tripod. Three tripods at: http://www.dvstabilizer.com/wondlan-tripod-c-58.html http://www.dvstabilizer.com