Sunday, July 25, 2010

Does Dvr Count Ratings



We ask two questions:
a) Is it important to have an exact placement, either horizontally or vertically, when we take our pictures?
b) If yes, how?
On the first point I will pursue a strategy similar to that followed in mathematical proofs by contradiction. In them. is part of one or more hypotheses, following the relevant arguments and arrive at a contradiction, we will have shown the invalidity of the premises.
What happens if an adequate level of camera?. In fact, in most cases nothing. But there are certain special cases in which the placement is critical. In my personal experience, two situations like this are what I set out below.
One is the making of subjects that occupy much of the frame using a wide angle, usually a building. In this case, if the flatness is not perfect, when we performed the alignment by the editor and activate the subsequent crop, there is a risk that the composition is seriously committed to "cut" any subject area.
The other, perhaps more importantly, is the production of panoramas. Here, if the grading is not adequate, we run two risks. The first is that it is necessary to marry the different takes by hand, since the software may encounter difficulties when trying to do it automatically. Certainly is a cumbersome task. Furthermore, in the final cut we can, as in the previous case, losing the intended composition.
surely more experienced photographers might propose other circumstances in which an appropriate placement is appropriate. Get
leveling is perfect, as is obvious, if we use the camera impossible show of hands, but it is possible using a tripod.
In a previous article on tripods at the end the following sliding Comment:
" One last item I want to say is the presence of a level to achieve perfect flatness. I know that many photographers consider it an important element, but I personally I have not ever found any use ."
This comment reflected the difficulty in obtaining suitable placement if the level was on the tripod. In fact, the only way to achieve this is to stretch or shrink the legs in a trial and error.
time ago, due to the emergence of some slack in the kneecap that initially bought, I bought a new one that incorporates two levels. And the situation varies significantly. Indeed
leveling de un plano se consigue utilizando únicamente dos de los tres grados de libertad que proporciona la rótula. El grado de libertad proporcionado por el giro en un plano horizontal al suelo (o vertical, depende de la posición que adopte la cámara) presupone la horizontalidad ( o verticalidad) de ese plano. Por tanto son los otros dos grados de libertad los que garantizan esta situación. Si disponemos de niveles para ambos, podremos asegurar la adecuada nivelación de nuestras fotografías.

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